2,644,020 results
Search Results
2. Utilizing de‐inked paper sludge for sustainable production of medium‐density fiberboard: A comprehensive study.
- Author
-
Ashori, Alireza, Mahmoudi Najafi, Seyed Heydar, Heydari, Vahid, Besharatifar, Kamran, Sharifi Taskouh, Hamed, and Maghsoodi, Davood
- Subjects
- *
SUSTAINABILITY , *PAPER mill waste , *FIBERBOARD , *CRYSTAL whiskers , *WASTE recycling , *ADHESION , *MOISTURE - Abstract
This study investigated converting abundant paper mill waste, de‐inked paper sludge (DPS), into value‐added medium‐density fiberboard (MDF) panels. The objective was to repurpose this solid waste into a valuable material that aligns with the principles of a circular economy. Previous research has examined the addition of paper sludge to wood composites, but there is limited information on the specific incorporation of DPS into MDF production. This investigation offers new insights into this application. MDF panels were manufactured using hardwood fibers, with varying levels of urea‐formaldehyde resin (10% and 12% by weight) and different loadings of DPS (ranging from 0% to 50% by weight). X‐ray diffraction analysis revealed the presence of defective DPS fiber crystals. Contact angle measurements confirmed that DPS had poor wettability, corresponding to increased water absorption. As more DPS was incorporated, the mechanical properties of the panels progressively weakened due to defective fibers and poor adhesion between the fibers and the matrix. This was evident in scanning electron microscopy micrographs, which showed an escalation in interfacial flaws. Increasing the resin dosage noticeably improved the internal bond strength and reduced moisture uptake across all levels of DPS. However, at a DPS loading of 50%, the properties of the panels deteriorated by 36%–57% compared to the control MDF. Additionally, thickness swelling and water absorption increased significantly with higher DPS content, primarily due to the hydrophilic nature of the fibers. Based on optimization, it was determined that a DPS loading of 20% with a resin content of 12% provided the best balance between performance, waste utilization, cost, and moisture resistance. The reuse of abundant paper sludge supports the goals of a circular economy. However, strategies are required to tailor the processing methods and enable higher levels of recycled material without excessively compromising the key attributes of the product. Further research should focus on enhancing the quality of DPS and its compatibility with wood fibers and resin to enhance the performance of the composite material. Highlights: DPS from recycled paper mill assessed for MDF production with wood fibers and resinIncreasing DPS loading caused reductions in strength and adhesion of panelsWater absorption and thickness swelling markedly rose with more DPS additionIt was attributed to hydrophilic fibers and disrupted fiber‐matrix bondingOptimal formulation was 20% DPS loading and 12% resin content, balancing performance, waste utilization, and cost. [ABSTRACT FROM AUTHOR]
- Published
- 2024
- Full Text
- View/download PDF
3. Cold plasma‐induced N, Cu‐doping on carbon paper for high‐active catalytic electrode preparation.
- Author
-
Yue, Xufeng, Xiang, Hongyu, Zhang, Peng, Shu, Song, Zhao, Yingxin, Zhang, Jiacheng, Liu, Jinwei, and Yu, Deping
- Subjects
- *
CARBON paper , *LOW temperature plasmas , *ELECTRODES , *COLLISIONS (Nuclear physics) , *PHYSISORPTION , *CARBON nanofibers , *PHYSIOLOGICAL effects of cold temperatures - Abstract
Carbon paper is commonly used for catalytic electrode preparation because of its high conductivity, corrosion resistance, and stability. However, traditional electrode preparation methods are inappropriate for highly hydrophobic carbon paper. In this paper, a high‐activity carbon paper catalytic electrode was prepared using multistrategies cold plasma modification to create atomic structural defects, dope N and Cu elements, and introduce oxygen‐containing functional groups. Analyses show that the bombardment of high‐energy particles caused atomic structural defects. Nitrogen and copper entered the carbon paper through plasma‐induced chemical recombination and physical adsorption, reaching 5.26% and 3.83%, respectively. Ethanol‐based plasma introduced oxygen‐containing functional groups to improve hydrophilicity. Finally, the plasma‐prepared electrode exhibited a reduction efficiency of 87.69% in an electrocatalytic nitrate reduction reaction. [ABSTRACT FROM AUTHOR]
- Published
- 2024
- Full Text
- View/download PDF
4. Streptomyces spp. as biocatalyst sources in pulp and paper and textile industries: Biodegradation, bioconversion and valorization of waste.
- Author
-
Cuebas‐Irizarry, Mara F. and Grunden, Amy M.
- Subjects
- *
PAPER industry , *COLOR removal in water purification , *BIOCONVERSION , *STREPTOMYCES , *ENZYMES , *WASTE paper , *COLOR removal (Sewage purification) - Abstract
Complex polymers represent a challenge for remediating environmental pollution and an opportunity for microbial‐catalysed conversion to generate valorized chemicals. Members of the genus Streptomyces are of interest because of their potential use in biotechnological applications. Their versatility makes them excellent sources of biocatalysts for environmentally responsible bioconversion, as they have a broad substrate range and are active over a wide range of pH and temperature. Most Streptomyces studies have focused on the isolation of strains, recombinant work and enzyme characterization for evaluating their potential for biotechnological application. This review discusses reports of Streptomyces‐based technologies for use in the textile and pulp‐milling industry and describes the challenges and recent advances aimed at achieving better biodegradation methods featuring these microbial catalysts. The principal points to be discussed are (1) Streptomyces' enzymes for use in dye decolorization and lignocellulosic biodegradation, (2) biotechnological processes for textile and pulp and paper waste treatment and (3) challenges and advances for textile and pulp and paper effluent treatment. [ABSTRACT FROM AUTHOR]
- Published
- 2024
- Full Text
- View/download PDF
5. Establishment of a measurement system to evaluate breast milk transfer of biological agents using dry filter paper: A multi‐institutional study.
- Author
-
Saito, Jumpei, Yakuwa, Naho, Hosokawa, Yoshihiko, Hamada, Hiromi, Suzuki, Tomo, Sago, Haruhiko, Kaneko, Kayoko, Yamatani, Akimasa, and Murashima, Atsuko
- Subjects
- *
BREAST milk , *FILTER paper , *BREAST milk collection & preservation , *DRYING agents , *BREASTFEEDING , *ENZYME-linked immunosorbent assay , *GOLIMUMAB , *ABATACEPT - Abstract
Aims: Information on breastfeeding and safety of biologics in infants is lacking due to difficulties in case collection. We evaluated methods for determining the concentration of biologics in breast milk using a dry filter method that can simplify the collection, storage and transport of breast milk. Methods: To generate dried filter paper (DFP) samples, approximately 30 μL of breast milk was placed onto a Whatman 903 card and punched out. After extraction, the supernatant was measured using an enzyme‐linked immunosorbent assay. Three concentrations of each drug were prepared in liquid breast milk (LBM) and DFP samples to determine their stability up to 28 days after storage at 2–8°C or −20°C for LBM and 25 ± 5°C for DFP. LBM and DFP samples were also provided by nursing mothers using biologics during lactation, and drug concentrations in both samples were compared. The agreement between the two measurement methods was confirmed by Bland–Altman analysis. Results: Breast milk was provided by 12 mothers who used biologics (tocilizumab, abatacept, etanercept, golimumab, sarilumab and belimumab). The coefficients of variation for within‐run and between‐run precision for the six drugs were within 15% for both LBM and DFP, and accuracy was within 90%–110% of the quality controls. After 28 days, concentrations remained at more than 90%. The difference between the values obtained by each method was within the acceptable range of error (−12.1 to +16.6 ng/mL). Conclusions: A method for determining the concentration of biologics using DFP is expected to help improve pharmacotherapy for lactating women. [ABSTRACT FROM AUTHOR]
- Published
- 2024
- Full Text
- View/download PDF
6. Evaluating Properties of Green Concrete Produced Using Waste Marble Powder, Quarry Dust, and Paper Pulp.
- Author
-
Disale, Anil, Nayak, Chittaranjan, Suryawanshi, Nagesh, Jadhav, Nitin, Jagdale, Umesh, Kate, Gunwant, Thakare, Sunil, Pandey, Shri Prakash, Sharma, Prakhakar, and Saxena, Amit
- Subjects
- *
PAPER pulp , *CONCRETE , *INDUSTRIAL wastes , *ALKALI-aggregate reactions , *CONSTRUCTION materials , *DETERIORATION of concrete - Abstract
Industrial waste locks are used as raw materials to reduce harmful effects on the environment and improve environmental performance. Marble clay powder can be used as a filling aid and can fill voids in concrete structures. This article will show you how to use a maximum natural sand alternative in concrete with marble powder and quarry dust. The challenge of the 21st century is to change to a new form that can support the natural system. This necessitates a radical rethinking of how to give the community infrastructure and housing. Making a concerted effort to develop novel, innovative, and alternative construction materials may be necessary. Jungles of concrete around cause's impact on the Environment and it would result in climate change. Mankind must avoid the use of things that are detrimental to the environment. So in this paper, it is decided to address the issue by adopting the use of the green concrete concept which is environmentally friendly. Green concrete is concrete made up using industrial wastes such as marble powder, quarry dust, wood ash, paper pulp, etc. Green concrete, which is capable of sustainable development, helps to reduce the consumption of natural resources, energy use, and environmental pollution. Green concrete is more cost‐effective than ordinary concrete and reduces the cost of resultant concrete by 14%–20%. It is also observed that the alkali‐aggregate reaction and sulfate attack resistance of concrete are both significantly improved. Green concrete is a useful tool for lowering environmental pollution and enhancing concrete's resistance to harsh conditions. All stages of infrastructure construction and rehabilitation will follow this trend of using new cement and techniques. Green concrete's adaptability and its performance derivatives will meet a variety of future needs. [ABSTRACT FROM AUTHOR]
- Published
- 2024
- Full Text
- View/download PDF
7. Suitability of Computerised and Pencil‐and‐Paper Neuropsychological Assessments in Healthy Older Culturally and Linguistically Diverse Australians: The CogSCAN Study.
- Author
-
Page, Zara A, Croot, Karen, Brodaty, Henry, Sachdev, Perminder S., Lam, Ben C. P., and Kochan, Nicole A.
- Abstract
Background: Computerised neuropsychological assessments (CNAs) are proposed as more accessible and culturally appropriate alternatives to traditional pencil‐and‐paper neuropsychological assessments (PnPAs) for diagnosing dementia in diverse populations. Whilst some PnPAs have demonstrated cultural and linguistic bias, research investigating the suitability of CNAs for culturally and linguistically diverse (CALD) individuals is limited, especially outside of the United States. Method: This study compared cognitive performance in a heterogenous sample of older Australian CALD English‐speakers and an L1 English‐speaking background (ESB) sample. Cross‐sectional data were drawn from the ongoing CogSCAN Study. Participants were 212 community‐dwelling individuals aged 60‐95 years without a dementia diagnosis (159 ESB/53 CALD). Participants completed a PnPA and/or CNAs, sessions were counterbalanced accordingly. CNA sessions involved two of four commercially‐available CNAs in a randomised order. Differences in the level and pattern of cognitive performance between groups on two CNAs (CANTAB/Cogstate) and a comprehensive PnPA in English, controlling for sociodemographic and health factors, are reported here. Selection of key variables for examination were based on previous findings (PnPA) and test developer recommendations (CNAs). Result: Sample characteristics are summarised in Table 1. CALD participants' cognitive performance on individual tests (Figure 1) was largely comparable to ESB participants on PnPA and each CNA. Significant differences between groups, after Bonferroni correction for multiple comparisons, were observed for the Boston Naming Test (PnPA; a language test widely criticised for use with CALD populations due to culturally biased stimuli) and Rapid Visual Information Processing (CANTAB; a test of attention/processing speed). Among participants who completed PnPA and Cogstate, a significant interaction between group and assessment type on global cognitive performance was observed; ESB participants outperformed CALD participants on PnPA, but not on Cogstate (Figure 2). No significant main effects or interaction were observed in PnPA versus CANTAB. Conclusion: These results showed fewer and smaller discrepancies across groups and assessment types than has been found in previous literature with other CALD samples, perhaps reflecting higher levels of English proficiency, acculturation, and education in English than previous cohorts. Work in progress is investigating the influence of linguistic and acculturation factors on cognitive performance in a larger and more diverse sample. [ABSTRACT FROM AUTHOR]
- Published
- 2023
- Full Text
- View/download PDF
8. Diagnostic study of human papillomavirus DNA detection in cervical and vaginal samples using the filter paper card.
- Author
-
Ramesan, Chiyancheri Koroth, Calvin, John Dickson, Thomas, Anitha, Fletcher, John, Kannangai, Rajesh, Abraham, Priya, and Peedicayil, Abraham
- Subjects
- *
HUMAN papillomavirus , *FILTER paper , *HUMAN experimentation - Abstract
Objective: To determine the accuracy of high‐risk human papillomavirus (HPV) DNA samples on filter paper in comparison to specimen transport medium (STM). Methods: This was a cross‐sectional diagnostic study of 42 consecutive women who were prospectively recruited. Each had self‐collected vaginal samples on filter paper, physician‐collected cervical samples on filter paper, and physician‐collected cervical samples in STM. HPV DNA testing was performed with a Hybrid Capture 2 system (Qiagen). Sensitivity, specificity, negative predictive value (NPV), positive predictive value (PPV), and agreement of filter paper methods with the standard procedure were calculated. Results: The overall prevalence of HPV in STM was 67.5%. Detection of HPV DNA in the physician‐collected cervical samples on filter paper had a sensitivity of 77.8%, a specificity of 100%, a PPV of 100%, and an NPV of 68.4%. The patient's self‐sampling on filter paper had a sensitivity of 66.7%, a specificity of 100%, a PPV of 100%, and an NPV of 59.1%. The agreement between STM method and physician‐collected sample on filter paper was substantial, (κ = 0.695, P < 0.001), while the agreement between STM and self‐collected samples on filter paper was moderate (κ = 0.565, P < 0.001). Most patients reported that self‐collection was acceptable (100%), painless (95%), and not embarrassing (95%). Conclusion: Filter paper, with dried self‐collected vaginal samples, can be used to detect high‐risk HPV with acceptable accuracy. Synopsis: Self‐collected vaginal samples on filter paper, to detect high‐risk human papillomavirus, is better for women, easier to transport to central laboratories, and has acceptable accuracy. [ABSTRACT FROM AUTHOR]
- Published
- 2023
- Full Text
- View/download PDF
9. Publication and collaboration anomalies in academic papers originating from a paper mill: Evidence from a Russia‐based paper mill.
- Author
-
Abalkina, Anna
- Subjects
- *
PAPER mills , *PREDATORY open access publishing - Abstract
This study attempts to detect papers originating from the Russia‐based paper mill 'International Publisher' LLC. A total of 1,063 offers to purchase co‐authorship on a fraudulent papers published from 2019 to mid‐2022 on the 123mi.ru website were analysed. This study identifies at least 451 papers that are potentially linked to the paper mill, including one preprint, a duplication paper and 16 republications of papers erroneously published in hijacked journals. Evidence of suspicious provenance from the paper mill is provided: matches in title, number of co‐authorship slots, year of publication, country of the journal, country of a co‐authors and similarities of abstracts. These problematic papers are co‐authored by scholars from at least 39 countries and are submitted to both predatory and reputable journals. This study also demonstrates collaboration anomalies in questionable papers and examines indicators of the Russia‐based paper mill. The value of co‐authorship slots offered by 'International Publisher' LLC from 2019 to 2021 is estimated at $6.5 million. Since this study only analysed a single paper mill, it is likely that the number of papers with forged authorship is much higher. [ABSTRACT FROM AUTHOR]
- Published
- 2023
- Full Text
- View/download PDF
10. 3.3: Fabricating Self‐Powered E‐paper on Paper Substrates and Driven by Triboelectric Nanogenerator Module.
- Author
-
Liu, Guangyou, Gu, Yifan, Zhong, Min, He, Zhi, Wang, Li, Qin, Zong, Hou, Tingting, Pu, Xiong, and Yang, Bo-ru
- Subjects
INDIUM tin oxide ,ELECTRONIC paper ,GLASS-reinforced plastics ,INTERNET of things - Abstract
The electronic paper (E‐paper) has the advantages of low power consumption, flexibility, small form factor, and eye‐friendliness. However, most E‐paper substrates are made by indium tin oxide (ITO) glasses or plastic substrates, which are hard to degrade in the natural environment. Our previous work introduced a self‐powered E‐paper (SPEP) integrated with triboelectric nanogenerator (TENG). Here, a paper‐based SPEP was further demonstrated, driven by a TENG module without any other power module. By combining the self‐powered driving mode and paper substrates, this work showed novel possibilities for E‐paper devices, which provided great potential in future Internet of things (IoT) displays. [ABSTRACT FROM AUTHOR]
- Published
- 2021
- Full Text
- View/download PDF
11. A new type of lipophilic hydrophobic self‐repairing cellulose insulating paper developed with ST‐110/FAS/PTFE ternary system as coating substrate.
- Author
-
Zeng, Zhenglin, Qin, Jinshan, Wang, Zuhao, Tan, Weimin, and Tang, Chao
- Published
- 2024
- Full Text
- View/download PDF
12. Direct Ink Writing of Nanocellulose and PEDOT:PSS for Flexible Electronic Patterned and Supercapacitor Papers.
- Author
-
Lay, Makara, Say, Mehmet Girayhan, and Engquist, Isak
- Subjects
- *
ELECTRONIC paper , *CARBON nanofibers , *ORGANIC electronics , *FLEXIBLE electronics , *CLEAN energy , *ELECTRIC currents , *SUPERCAPACITORS - Abstract
Printed electronic paper identifies its interest in flexible organic electronics and sustainable and clean energy applications because of its straightforward production method, cost‐effectiveness, and positive environmental impact. However, current limitations include restricted material thickness and the use of supporting substrate for printing. Here, 2D and 3D electronic patterned paper are fabricated from direct ink writing (DIW) nanocellulose and PEDOT:PSS‐based materials using syringe deposition and 3D printing. The conductor patterns are integrated in the bulk of the paper, while non‐conductive sections are used as support to form free‐standing paper. The strong interface between the patterns of electronic patterned paper gives mechanical stability for practical handling. The conductive paper‐based electrode has 202 S cm−1 and is capable of handling electric current up to 0.7 A, which can be used for high‐power devices. Printed supercapacitor papers show high specific energy of 4.05 Wh kg−1, specific power of 4615 W kg−1 at 0.06 A g−1, and capacitance retention above 95% after 2000 cycles. The new design structure of electronic patterned papers presents a solution for additive manufacturing of paper‐based composites for supercapacitors, wearable electronics, or sensors for smart packaging. [ABSTRACT FROM AUTHOR]
- Published
- 2023
- Full Text
- View/download PDF
13. A comparative study of the conference papers of mainland China's double first‐class universities.
- Author
-
Zhang, Guijie and Wei, Fangfang
- Subjects
- *
CONFERENCE papers , *COMPARATIVE studies , *CITATION indexes , *DATABASES , *PSYCHIATRY education - Abstract
This paper analyses the conference papers published by double first‐class universities from mainland China between 2006 and 2019. The main findings are as follows: first, the number of conference papers from different double first‐class universities varied greatly, with the annual numbers of papers in the China Proceedings of Conferences Full‐text Database (CPCD) and in the Conference Proceedings Citation Index (CPCI) fluctuating during this period. Second, most of the top 10 disciplines of the papers in the CPCD and CPCI were in the natural sciences, with only two in the social sciences. The CPCD papers and CPCI papers had some overlap in their disciplinary distributions. Third, the CPCD and CPCI papers differed little in total number, with the number of CPCI papers being slightly higher than the number of CPCD papers. With the introduction of new regulations from the Ministry of Science and Technology (MST), there will likely be an increase in the number of Chinese‐language conference papers in the future. [ABSTRACT FROM AUTHOR]
- Published
- 2023
- Full Text
- View/download PDF
14. Hydrophilic/Hydrophobic SiO2 Nanoparticles Enabled Janus‐Type Paper through Commercial Glaco Spraying and Air‐Plasma Treatment.
- Author
-
Xu, Bing and Ding, Yinlong
- Subjects
JANUS particles ,CORPORATE bonds ,NANOPARTICLES ,FILTER paper ,MICROFLUIDICS ,WORK design ,ACTUATORS - Abstract
Functional paper‐based microdevices have been receiving wide attention in the research areas of microfluidic chips, soft actuators, etc. This work introduces the design and fabrication of a Janus‐type paper in which one side of the paper remains hydrophilic and the other side is hydrophobic. Such Janus‐type paper is prepared by directly spraying hydrophobic Glaco solutions and following air plasma treatment. The former treatment can cover the paper fibers with numerous hydrophobic SiO2 nanoparticles. Through optimizing the fabrication parameters of the air plasma, it can penetrate the filter paper in a controllable depth, resulting in effectively regulating the hydrophobic particles into hydrophilic ones. Thereafter, the antirotation and interfacial stability of the Janus paper are investigated. Finally, a liquid storage and contamination‐free analysis devices are demonstrated on the Janus‐type paper platform. Noting that the commercially nonfluoride coating (Glaco) and mature plasma instrument together make the fabrication method simple, rapid, users/environmental‐friendly, and mass‐produced. The method provides a new route to fabricate Janus‐type paper for potential multifunctional applications in microfluidic chips and smart actuators, and may open up new avenue to prepare Janus films in a simple/rapid way. [ABSTRACT FROM AUTHOR]
- Published
- 2022
- Full Text
- View/download PDF
15. DNA sequences as types: A discussion paper from the Special‐purpose Committee established at the XIX International Botanical Congress in Shenzhen, China.
- Author
-
Thiele, Kevin R., Applequist, Wendy L., Renner, Susanne S., May, Tom W., Dönmez, Ali A., Groom, Quentin, Lehtonen, Samuli, Maggs, Christine A., Malécot, Valéry, and Yoon, Hwan Su
- Subjects
DNA sequencing ,CONFERENCES & conventions ,PLANT DNA - Abstract
A special‐purpose Committee on DNA Sequences as Types was established at the XIX International Botanical Congress (IBC) in Shenzhen, China, in 2017, with a mandate to report to the XX IBC in Madrid in 2024 with recommendations on a preferred course of action with respect to potential amendments of the International Code of Nomenclature for algae, fungi, and plants to allow DNA sequences as types. This is the first in an expected series of papers from the Special‐purpose Committee on this issue. We set out the background to the establishment of the Committee, explore key issues around typification that are pertinent to the question of DNA sequences as types, enumerate pros and cons of allowing DNA sequences as types, and foreshadow options for future discussion and potential recommendations. [ABSTRACT FROM AUTHOR]
- Published
- 2023
- Full Text
- View/download PDF
16. Preparation of superhydrophobic conductive micro/nano‐graphite/PDMS films on paper by simple spraying method.
- Author
-
He, Qiang, Du, Zhicai, Jia, Yangyang, Liu, Yujie, Xu, Zehua, Xu, Yuan, and Li, Anling
- Subjects
CHEMICAL stability ,FILTER paper ,SURFACE energy ,ROLLING contact ,METAL spraying ,CONTACT angle ,POLYDIMETHYLSILOXANE ,GRAPHITE - Abstract
Paper‐based materials are widely used in various fields due to their advantages, such as environmental friendliness and sustainability. However, the highly hydrophilic nature of the cellulose that makes up paper‐based materials limits their use. In this paper, micron/nano‐graphite/polydimethylsiloxane (PDMS) coatings with excellent superhydrophobic and conductive properties were prepared on the surface of filter paper by a simple spraying method. A mixture of micro‐graphite and nano‐graphite was used to form a multistage rough structure on the surface of the filter paper by spraying, and the low surface energy PDMS enhanced the adhesion of the micro‐graphite and nano‐graphite on the surface of the filter paper. The results showed that the samples possessed the best superhydrophobic properties when the ratio of micro‐graphite to nano‐graphite was 1:1, at which time the contact and rolling angles of the samples were 165.4° and 3.2°, respectively. The prepared superhydrophobic samples have good bounce and self‐cleaning properties, while the samples have good mechanical stability and chemical resistance. Additionally, due to the conductivity of micro–nano‐graphite, both particle sizes closely contact the sample surface, creating a conductive network. With a 1:1 ratio of micro‐ and nano‐graphite, the coating exhibits minimal resistance at 1.89 KΩ, and the sample maintains stable conductivity even underwater. The above properties greatly extend the application range of paper‐based superhydrophobic materials. [ABSTRACT FROM AUTHOR]
- Published
- 2024
- Full Text
- View/download PDF
17. The Warming Papers : The Scientific Foundation for the Climate Change Forecast
- Author
-
David Archer, Raymond Pierrehumbert, David Archer, and Raymond Pierrehumbert
- Subjects
- Greenhouse gases, Greenhouse effect, Atmospheric, Global temperature changes
- Abstract
Chosen for the 2011 ASLI Choice - Honorable Mention (History Category) for a compendium of the key scientific papers that undergird the global warming forecast. Global warming is arguably the defining scientific issue of modern times, but it is not widely appreciated that the foundations of our understanding were laid almost two centuries ago with the postulation of a greenhouse effect by Fourier in 1827. The sensitivity of climate to changes in atmospheric CO2 was first estimated about one century ago, and the rise in atmospheric CO2 concentration was discovered half a century ago. The fundamentals of the science underlying the forecast for human-induced climate change were being published and debated long before the issue rose to public prominence in the last few decades. The Warming Papers is a compendium of the classic scientific papers that constitute the foundation of the global warming forecast. The paper trail ranges from Fourier and Arrhenius in the 19th Century to Manabe and Hansen in modern times. Archer and Pierrehumbert provide introductions and commentary which places the papers in their context and provide students with tools to develop and extend their understanding of the subject. The book captures the excitement and the uncertainty that always exist at the cutting edge of research, and is invaluable reading for students of climate science, scientists, historians of science, and others interested in climate change.
- Published
- 2011
18. Optimizing CO2 Adsorption/Desorption via the Coupling of Imidazole and Carbon Nanotubes Paper for Spontaneous CO2 Uptake from Ambient Air and Solar‐Driven Release.
- Author
-
Li, Chujia, Cao, Xuebo, Liu, Guangchun, Huang, Lin, Chu, Mingming, Cheng, Ruobing, Wang, Aijun, and Xu, Zhen
- Abstract
Direct air capture (DAC) is a sustainable technology to alleviate the greenhouse effect and a reliable pathway to acquire inexhaustible CO2 for the production of costly chemicals and energy products. Current DAC technologies with amine‐related sorbents rely on chemisorption, while they consume intensive energy for CO2 release and sorbent regeneration by heating. Developing new DAC processes with weak, reversible adsorption can substantially reduce the regeneration energies. Herein, the design of CO2 breathing paper (CBP) is demonstrated toward spontaneous CO2 extraction from ambient air and solar‐driven regeneration. The CBP is fabricated by coupling 2‐ethyl‐4‐methylimidazole to carbon nanotube paper on the basis of density functional theory calculations. At ambient conditions, CBP spontaneously captures atmospheric CO2 with a capacity of 0.14–1.75 mmol g–1 at 0–35 °C through non‐covalent electrostatic interaction. Upon exposure to sunlight, all adsorbed CO2 can be released and converted to concentrated gas for storage. Attractively, the efficiency of solar‐driven CO2 release is much higher than the traditional temperature‐swing method owing to the IR sensitivity of CO2. Besides the reversibility, the mild conditions also ensure the durability of CBP. These findings suggest that the CBP is a promising candidate for cost‐effective DAC. [ABSTRACT FROM AUTHOR]
- Published
- 2024
- Full Text
- View/download PDF
19. Comparing urine point‐of‐care tests to screen preeclampsia: Congo‐red dot paper test versus dipstick urinalysis.
- Author
-
Wang, Liying, Gao, Jinsong, Tang, Pingping, Hu, Huiying, Chen, Xiaoxu, Chen, Ziyi, and Sun, Yin
- Abstract
To compare the urine Congo‐red dot paper test (CRD) with dipstick urinalysis to screen preeclampsia (PE). A total of 409 paired spot urine samples were obtained prospectively from women with suspected pre‐eclampsia attending for routine hospital visits. Congo‐red dot paper test and dipstick urinalysis were examined and compared to screen pre‐eclampsia. The agreement between the two urinary test is modest (kappa coefficient = 0.28, 95% CI 0.14–0.42). The specificity of CRD was higher than urinalysis (97.4% vs. 90.4%, p <.001). Urinalysis performed better in sensitivity (77.3% vs. 40.9%, p =.04) and the area under the receiver operating characteristic curves (AUC) (0.84 [95% CI 0.74–0.94] vs. 0.69 [95% CI 0.55–0.83], p =.04) than CRD, respectively. The sensitivity, specificity, AUC of the parallel test of them is 86.4% (64.0%–96.4%), 89.1% (85.5%–92.0%), and 0.88 (95% CI 0.79–0.96). And the serial test is 31.8% (14.7%–54.9%), 98.7% (96.8%–99.5%), 0.65 (95% CI 0.51–0.79), accordingly. The urinalysis is a better diagnosing test for preeclampsia. CRD could aid in the diagnosis of patients with preeclampsia. Combined the two tests in suspected patients may further improve the performance in the diagnosis of preeclampsia. Further study need to be made for its potential clinical practice. [ABSTRACT FROM AUTHOR]
- Published
- 2024
- Full Text
- View/download PDF
20. Cellulosic Nanofibers Utilizing a Silicone Elastomeric Core to Form Stretchable Paper.
- Author
-
Dorsainvil, Joab S., Brown, Matthew S., Rafiee, Zahra, Elhadad, Anwar, Choi, Seokheun, and Koh, Ahyeon
- Subjects
CELLULOSE acetate ,BIOELECTRONICS ,NANOFIBERS ,WEARABLE technology ,SILICONES ,ELASTOMERS ,CELLULOSE fibers ,SILICONE rubber - Abstract
Paper, an inexpensive material with natural biocompatibility, non‐toxicity, and biodegradability, allows for affordable and cost‐effective substrates for unconventional advanced electronics, often called papertronics. On the other hand, polymeric elastomers have shown to be an excellent success for substrates of soft bioelectronics, providing stretchability in skin wearable technology for continuous sensing applications. Although both materials hold their unique advantageous characteristics, merging both material properties into a single electronic substrate reimagines paper‐based bioelectronics for wearable and patchable applications in biosensing, energy generation and storage, soft actuators, and more. Here, a breathable, light‐weighted, biocompatible engineered stretchable paper is reported via coaxial nonwoven microfibers for unconventional bioelectronic substrates. The stretchable papers allow intimate bioconformability without adhesive through coaxial electrospinning of a cellulose acetate polymer (sheath) and a silicone elastomer (core). The fabricated cellulose‐silicone fibers exhibit a greater percent strain than commercially available paper while retaining hydrophilicity, biocompatibility, combustibility, disposable, and other natural characteristics of paper. Moreover, the nonwoven stretchable cellulose‐silicone fibrous mat can adapt conventional printing and fabrication process for paper‐based electronics, an essential aspect of advanced bioelectronic manufacturing. [ABSTRACT FROM AUTHOR]
- Published
- 2024
- Full Text
- View/download PDF
21. Is There a Difference between Paper and Electronic Chinese Signatures?
- Author
-
Luo, Ji-Feng, Pu, Yun-Zhu, Yin, Jie-Yang, Liu, Xiaohong, Tan, Tao, Zhang, Yudong, and Hu, Menghan
- Subjects
ARTIFICIAL neural networks ,ELECTRONIC paper ,DIGITAL signatures ,CONVOLUTIONAL neural networks ,WILCOXON signed-rank test - Abstract
The purpose of this study is to investigate whether there are differences in handwritten Chinese signatures on different media including paper and electronic devices. Participants were asked to sign specified names on various types of media and the signatures were scanned or saved digitally for subsequent analysis. In this study, using convolutional neural networks and Siamese neural networks as classifiers and comparators, the performance plunge is revealed and thus considerable dissimilarity between the signatures on different media is implied. To further explore this, cubic Bézier curves are fitted to the signatures using the least square method for quantitative statistical analysis. By analyzing the visual changes in the morphology of strokes, several features of signatures are selected and computed, and the paired t‐test and the Wilcoxon signed‐rank test are implemented, which provides a deeper substantiation and explanation of the findings. [ABSTRACT FROM AUTHOR]
- Published
- 2023
- Full Text
- View/download PDF
22. New method for the absolute dating of paper by radiocarbon measurements.
- Author
-
Pigorsch, Enrico, Kiessler, Birgit, and Hüls, Matthias
- Subjects
RADIOCARBON dating ,CELLULOSE fibers ,MASS spectrometry ,STARCH ,ANALYTICAL chemistry ,PAPER chemicals - Abstract
The absolute dating of documents is still one of the most important challenges for forensic document examiners (FDE). The potential difference between the date on a questioned document and the actual year of production of the used paper can be only 1 to 5 years. Until now, there was no analytical method with this accuracy available. This study demonstrates a method for an absolute dating of paper by using the 14C bomb peak and dating the starch in the paper. Accelerator mass spectroscopy (AMS) radiocarbon measurements were performed on starch extracts and cellulose fibers from 50 paper samples with known production year from 1950 to 2018. For most of the paper samples, the measured 14C concentration values in the starch extracts were highly correlated with the data of the 14C bomb peak calibration curve. The differences between the calibrated ages and the actual harvest years of the starch‐containing plants were only up to 3 years. The 14C concentration in the paper fibers showed a lower but significant correlation with the production year of the papers and can be used to support the dating results of the starch extracts. In order to secure the accuracy of the dating, aside from the radiocarbon measurements of the extracted starch other analytical methods or data are used, like a detailed chemical analysis of the paper composition including fiber composition and the spectroscopic analysis of the purity of the starch extracts. In practice, only starch extracts without contaminations are used for the paper dating. [ABSTRACT FROM AUTHOR]
- Published
- 2022
- Full Text
- View/download PDF
23. Chemically Oxidized Carbon Paper as a Free‐Standing Electrode for Supercapacitor: An Insight into Surface and Diffusion Contribution.
- Author
-
Waseem, Sadiya, Dubey, Prashant, Singh, Mandeep, Sundriyal, Shashank, and Maheshwari, Priyanka H.
- Subjects
- *
CARBON paper , *ENERGY density , *SUPERCAPACITOR electrodes , *POTASSIUM dichromate , *POWER density , *RAMAN spectroscopy - Abstract
Carbon paper has been synthesized by paper making process followed by composite formation, and further chemically oxidized by immersing into a mixture of sulphuric acid and potassium dichromate to be used as an electrode for supercapacitor applications. XRD and Raman spectra were used to analyze the structure, and the defects in the samples respectively, in due course of oxidation. FESEM images revealed the morphology of oxidized samples to be rougher, which contributes towards increased active sites for reaction. The sample (COCP‐60) optimized via electrochemical studies, was further tested in various electrolytes to study the electrode/electrolyte interaction. It delivered a highest areal capacitance of 6.02 F/cm2 (231.5 F/g) in acidic electrolyte at a current density of 5 mA/cm2 (0.19 A/g). This findings were further corroborated by surface and diffusion contribution studies wherein it was found that diffusion is more profound with acidic electrolyte. The supercapacitor device fabricated with COCP‐60 electrode delivered an energy density of 0.41 Wh/cm2 at 2.83 W/cm2 power density with coulombic efficiency of 98 %, and cyclic stability of ∼90 % for over 5000 cycles. [ABSTRACT FROM AUTHOR]
- Published
- 2023
- Full Text
- View/download PDF
24. Natural Halloysite Nanotubes Coated Commercial Paper or Waste Newspaper as Highly‐Thermal‐Stable Separator for Lithium‐Ion Batteries.
- Author
-
Huang, Jinhua, Jiang, Heng, Wu, Feixiang, Xiong, Xiang, and Han, Kai
- Subjects
WASTE paper ,CORPORATE bonds ,LITHIUM-ion batteries ,HALLOYSITE ,NANOTUBES ,LITHIUM cells ,FLAME - Abstract
Commercial polypropylene (PP) and polyethylene (PE) films are widely used as separators for lithium‐ion batteries (LIBs). However, owing to the poor thermal stability of PP and PE films, current LIBs suffer from serious safety risks in their practical applications. As an effective path, the design of novel high‐safety composite separators can significantly overcome the safety issues of LIBs. Herein, a universal and cost‐effective strategy is developed to fabricate highly‐thermal‐stable separators via coating natural halloysite nanotubes (HNTs) on both sides of commercial papers or waste newspaper. The resulted separators show superior properties, including thermal stability, heat conduction, wettability, and electrolyte uptake. Compared with commercial PP separators, both HNTs coated A4 paper and waste newspaper composite separators enable better cycling and rate performance for Li/LiFePO4 cells. Even after burning in fire or treating under 180 °C, the composite separators still present a normal structure, and the assembled cell can perform as regular. Furthermore, the nail penetration test of pouch cells illustrates that such separator significantly prevents thermal runaway of LIBs. The inexpensive and environmentally friendly materials with a facile coating process provide a highly‐thermal‐stable separator for commercial LIBs. [ABSTRACT FROM AUTHOR]
- Published
- 2022
- Full Text
- View/download PDF
25. Simulation and analysis of edge ghosting for microcapsule e‐paper based on particle dynamics and light scattering model.
- Author
-
Zeng, Zheng, Liu, Yunhe, Liu, Guangyou, Yang, Jinlan, Yang, Mingyang, Zou, Guowei, Qin, Zong, Wang, Xidu, Deng, Shaozhi, and Yang, Bo‐Ru
- Subjects
- *
PARTICLE dynamics , *ELECTROPHORETIC displays , *ELECTRONIC paper , *PERMITTIVITY , *LIGHT scattering , *INTERNET of things - Abstract
Electronic paper (e‐paper) is a reflective display technology with unique advantages, such as bistability, low‐power consumption, and high ambient contrast ratio. These features make e‐paper a promising candidate for future Internet of Things applications. Among different technologies of e‐paper, electrophoretic display (EPD) is the most successful one for commercialization. However, the edge ghosting (also known as the fringing effect) still limits the performance of EPD. Herein, we established a model of particle dynamics of electrophoresis, simulated the edge ghosting of microcapsule EPD, analyzed the edge ghosting effect, and revealed the relationship between thicknesses, dielectric constants of the back binder layer, and the edge ghosting. Two EPD panels with different thicknesses of back binder layer were demonstrated, which verifies the accuracy of this simulation model. With the proposed model, many device mechanisms and product issues can be analyzed and illustrated, which is supposed to guide the researchers in optimizing the device structure design of EPD. [ABSTRACT FROM AUTHOR]
- Published
- 2023
- Full Text
- View/download PDF
26. Preparation of high breakdown strength meta‐aramid composite paper reinforced by polyphenylene sulfide superfine fiber.
- Author
-
Zhao, Yuzhen, Yao, Songjun, Xiong, Siwei, Li, Bingyang, Wang, Xuyi, Yang, Feihua, Jia, Yingbin, Wang, Luoxin, and Wang, Hua
- Subjects
POLYPHENYLENE sulfide ,THERMAL stability ,THERMAL properties ,HOT rolling ,THERMAL insulation ,FIBROUS composites ,FIBERS - Abstract
Meta‐aramid paper has been widely used in transformers because of its excellent insulation properties and thermal stability. However, with the rapid development of high‐voltage transformers, higher requirements are placed on the breakdown strength of meta‐aramid paper. In this study, meta‐aramid chopped fibers/polyphenylene sulfide (MACFs/PPS) composite paper was prepared by a combination of wet‐copying and hot‐rolling technology. Then the microscopic morphology, mechanical properties, crystallization behavior, insulation properties, and thermal stability of the MACFs/PPS composite paper were studied and evaluated. The experimental results showed that the breakdown strength of the MACFs/PPS composite paper was as high as 46.46 kV/mm, which was 2.7 times higher than the famous Nomex T410 insulating paper. Meanwhile, the MACFs/PPS composite paper presented good mechanical properties and thermal stability. This paper provides a simple and versatile method for the preparation of meta‐aramid composite paper with high breakdown strength. [ABSTRACT FROM AUTHOR]
- Published
- 2023
- Full Text
- View/download PDF
27. Study on XY Model and Its Equivalent Circuit of Oil‐Paper Insulation.
- Author
-
Tu, Yalong, Wang, Shengkang, Xu, Qingchuan, Lin, Fuchang, and Li, Hua
- Subjects
ELECTRIC currents ,ELECTRIC distortion ,DIELECTRIC properties ,DIELECTRIC loss ,INSULATING oils ,SILICONE rubber - Abstract
The XY model of oil‐paper insulation connects the dielectric properties of oil, paper and oil‐paper system. Its equivalent circuit is the basis of the application of dielectric response technology in the state diagnosis of transformer oil‐paper insulation. To better apply the XY model to the study of the dielectric properties of oil‐paper insulation, the dielectric properties of the coaxial oil‐paper insulation system built in the laboratory, XY model and its equivalent circuits are compared. Then an improved circuit of XY model which can reflect the properties of the oil‐paper insulation more truly is proposed. The results show that there is no difference between the XY model and the coaxial model, and both can well characterize the oil‐paper insulation system. The two equivalent circuits of XY model, "Series to Parallel" circuit and "Parallel to Series" circuit, ignore the current tangential component and the electric field distortion in oil‐paper insulation, respectively, resulting in deviations from the XY model. By introducing a new branch C*XY, the improved circuit can reflect the tangential current and electric field distortion in oil‐paper insulation, which can be completely equivalent to XY model. In addition, there is a characteristic frequency point in the oil‐paper insulation system, where the dielectric loss factor tan δ of oil, paper and oil‐paper system are the same. There is no difference between the XY model and its two equivalent circuits at this point. The characteristic frequency is determined by the dielectric properties of oil and paper, and not affected by the insulation structure. © 2022 Institute of Electrical Engineers of Japan. Published by Wiley Periodicals LLC. [ABSTRACT FROM AUTHOR]
- Published
- 2023
- Full Text
- View/download PDF
28. Chemical and enzymatic deinking efficiency of agricultural and industrial waste fiber-based paper packaging.
- Author
-
Sežun, Mija, Karlovits, Igor, and Kavčič, Urška
- Subjects
WASTE paper ,INDUSTRIAL wastes ,AGRICULTURAL wastes ,INDUSTRIAL efficiency ,PACKAGING materials ,MANUFACTURING processes ,PACKAGING recycling - Abstract
BACKGROUND: Deinking is an important part of paper recycling that involves the removal of ink particles from the paper fibres. This industrial process is important so that the fibres can be recirculated back into paper production, which enables better sustainability as fewer fresh fibres are needed. In this study, we examined five different alternative fibre materials from different agricultural residues and industrial processes for the pilot production of papers. Papers containing fibres from invasive plants (Japanese knotweed), dedicated crops (miscanthus, acacia), agricultural residues (tomato stems), and industrial waste (jute - fibres from coffee bags) were printed with water-based flexo inks and deinked with two separate processes (chemical and enzymes). Mechanical (break and tensile index, breaking length) and optical properties (ISO whiteness, brightness and CIE L*a*b* values) were measured and ink elimination IR700 and deinking efficiency was calculated for the two deinking processes. RESULTS: Enzymatic treatment improved the mechanical properties of deinked pulp in comparison with the classic chemical treatment. Mechanical strength for almost all papers increased slightly (breaking length up to 20% in tomato and jute), and the optical result (brightness) increased similarly for both processes due to the bleaching action of the colour-shaded samples, whereas the deinking efficiency showed mixed results between chemical- and enzyme-type deinking (with chemical achieving better elimination measured at 700 nm) in the typical range of ink elimination values (15-35%) for flexographic inks. This indicates further optimization of the deinking with enzymes is needed due to different alternative fibre compositions and variations of residues in the delignification processes. CONCLUSION: Using a combination of adjusted enzymatic treatment as a precursor for deinking of paper-based packaging materials sourced from alternative fibres showed promising results regarding mechanical properties, whereas the optical properties need to be improved with cellulase optimization or by using mixes of different enzymes. These kinds of paper materials printed with flexo inks were found to be successfully deinkable with the chemical ISO-based deinking protocol. [ABSTRACT FROM AUTHOR]
- Published
- 2023
- Full Text
- View/download PDF
29. How do we achieve blinding in modern electronic and paper medical records during the conduct of transfusion trials?
- Author
-
Santos, Sean, Gupta, Akash, Tinmouth, Alan, Butt, Amir, Berry, Brian, Musuka, Charles, Cserti‐Gazdewich, Christine, Leung, Elaine, Duncan, Jennifer, Mack, Johnathan, Yan, Matthew T. S., Bahmanyar, Mohammad, Shehata, Nadine, Prokopchuk‐Gauk, Oksana, Onell, Rodrigo, Nahirniak, Susan, Covello, Thomas, Lin, Yulia, Solh, Ziad, and Callum, Jeannie
- Subjects
ELECTRONIC health records ,ELECTRONIC records ,BLOOD transfusion ,ELECTRONIC paper ,PRODUCT coding ,BLOOD platelet transfusion - Abstract
Background: Regulatory aspects of transfusion medicine add complexity in blinded transfusion trials when considering various electronic record keeping software and blood administration processes. The aim of this study is to explore strategies when blinding transfusion components and products in paper and electronic medical records. Methods: Surveys were collected and interviews were conducted for 18 sites across various jurisdictions in North America to determine solutions applied in previous transfusion randomized control trials. Results: Sixteen responses were collected of which 11 had previously participated in a transfusion randomized control trial. Various solutions were reported which were specific to the laboratory information system (LIS) and electronic medical record (EMR) combinations although solutions could be grouped into four categories which included the creation of a study product code in the LIS, preventing the transmission of data from the LIS to the EMR, utilizing specialized stickers and labels to conceal product containers and documents in the paper records, and modified bedside procedures and documentation. Discussion: LIS and EMR combinations varied across sites, so it was not possible to determine combination‐specific solutions. The study was able to highlight solutions that may be emphasized in future iterations of LIS and EMR software as well as procedural changes that may minimize the risk of unblinding. [ABSTRACT FROM AUTHOR]
- Published
- 2024
- Full Text
- View/download PDF
30. Dynamics of an impurity ion transport in oil‐paper insulation under various electric fields.
- Author
-
Ren, Yuanyang, Wang, Yang, Zhang, Qiankai, Xiong, Jiayu, Cao, Wen, Lv, Zepeng, and Wu, Kai
- Published
- 2024
- Full Text
- View/download PDF
31. Risks of abuse of large language models, like ChatGPT, in scientific publishing: Authorship, predatory publishing, and paper mills.
- Author
-
Kendall, Graham and Teixeira da Silva, Jaime A.
- Subjects
LANGUAGE models ,CHATGPT ,AUTHORSHIP ,PREDATORY open access publishing ,SCIENCE publishing ,PAPER mills ,PAPER industry - Abstract
Key points: Academia is already witnessing the abuse of authorship in papers with text generated by large language models (LLMs) such as ChatGPT.LLM‐generated text is testing the limits of publishing ethics as we traditionally know it.We alert the community to imminent risks of LLM technologies, like ChatGPT, for amplifying the predatory publishing 'industry'.The abuse of ChatGPT for the paper mill industry cannot be over‐emphasized.Detection of LLM‐generated text is the responsibility of editors and journals/publishers. [ABSTRACT FROM AUTHOR]
- Published
- 2024
- Full Text
- View/download PDF
32. Digitally-enabled, person-centred care (PCC) in allergen immunotherapy: An ARIA-EAACI Position Paper.
- Author
-
Pfaar O, Sousa-Pinto B, Papadopoulos NG, Larenas-Linnemann DE, Ordak M, Torres MJ, Mösges R, Klimek L, Zuberbier T, Matricardi PM, Berger UE, Berger M, Dramburg S, Mahler V, Toppila-Salmi SK, Bergmann KC, Ollert M, Tripodi S, Jutel M, Agache I, Eguiluz-Gracia I, Canonica GW, Akdis CA, Sokolowska M, Sofiev M, Shamji MH, Czarlewski W, Fonseca JA, Bedbrook A, and Bousquet J
- Abstract
In rhinitis and asthma, several mHealth apps have been developed but only a few have been validated. However, these apps have a high potential for improving person-centred care (PCC), especially in allergen immunotherapy (AIT). They can provide support in AIT initiation by selecting the appropriate patient and allergen shared decision-making. They can also help in (i) the evaluation of (early) efficacy, (ii) early and late stopping rules and (iii) the evaluation of (carried-over) efficacy after cessation of the treatment course. Future perspectives have been formulated in the first report of a joint task force (TF)-Allergic Rhinitis and Its Impact on Asthma (ARIA) and the European Academy of Allergy and Clinical Immunology (EAACI)-on digital biomarkers. The TF on AIT now aims to (i) outline the potential of the clinical applications of mHealth solutions, (ii) express their current limitations, (iii) make proposals regarding further developments for both clinical practice and scientific purpose and (iv) suggest which of the tools might best comply with the purpose of digitally-enabled PCC in AIT., (© 2024 The Authors. Allergy published by European Academy of Allergy and Clinical Immunology and John Wiley & Sons Ltd.)
- Published
- 2024
- Full Text
- View/download PDF
33. Metabolic pathways in immune senescence and inflammaging: Novel therapeutic strategy for chronic inflammatory lung diseases. An EAACI position paper from the Task Force for Immunopharmacology.
- Author
-
Roth-Walter F, Adcock IM, Benito-Villalvilla C, Bianchini R, Bjermer L, Caramori G, Cari L, Chung KF, Diamant Z, Eguiluz-Gracia I, Knol EF, Jesenak M, Levi-Schaffer F, Nocentini G, O'Mahony L, Palomares O, Redegeld F, Sokolowska M, Van Esch BCAM, and Stellato C
- Subjects
- Humans, Animals, Chronic Disease, Inflammation metabolism, Inflammation immunology, Lung Diseases etiology, Lung Diseases drug therapy, Lung Diseases metabolism, Lung Diseases immunology, Pulmonary Disease, Chronic Obstructive metabolism, Pulmonary Disease, Chronic Obstructive drug therapy, Pulmonary Disease, Chronic Obstructive immunology, Aging immunology, Aging metabolism, Cellular Senescence drug effects, Metabolic Networks and Pathways
- Abstract
The accumulation of senescent cells drives inflammaging and increases morbidity of chronic inflammatory lung diseases. Immune responses are built upon dynamic changes in cell metabolism that supply energy and substrates for cell proliferation, differentiation, and activation. Metabolic changes imposed by environmental stress and inflammation on immune cells and tissue microenvironment are thus chiefly involved in the pathophysiology of allergic and other immune-driven diseases. Altered cell metabolism is also a hallmark of cell senescence, a condition characterized by loss of proliferative activity in cells that remain metabolically active. Accelerated senescence can be triggered by acute or chronic stress and inflammatory responses. In contrast, replicative senescence occurs as part of the physiological aging process and has protective roles in cancer surveillance and wound healing. Importantly, cell senescence can also change or hamper response to diverse therapeutic treatments. Understanding the metabolic pathways of senescence in immune and structural cells is therefore critical to detect, prevent, or revert detrimental aspects of senescence-related immunopathology, by developing specific diagnostics and targeted therapies. In this paper, we review the main changes and metabolic alterations occurring in senescent immune cells (macrophages, B cells, T cells). Subsequently, we present the metabolic footprints described in translational studies in patients with chronic asthma and chronic obstructive pulmonary disease (COPD), and review the ongoing preclinical studies and clinical trials of therapeutic approaches aiming at targeting metabolic pathways to antagonize pathological senescence. Because this is a recently emerging field in allergy and clinical immunology, a better understanding of the metabolic profile of the complex landscape of cell senescence is needed. The progress achieved so far is already providing opportunities for new therapies, as well as for strategies aimed at disease prevention and supporting healthy aging., (© 2023 The Authors. Allergy published by European Academy of Allergy and Clinical Immunology and John Wiley & Sons Ltd.)
- Published
- 2024
- Full Text
- View/download PDF
34. Telemedicine with special focus on allergic diseases and asthma-Status 2022: An EAACI position paper.
- Author
-
Smolinska S, Popescu FD, Izquierdo E, Antolín-Amérigo D, Price OJ, Alvarez-Perea A, Eguíluz Gracia I, Papadopoulos NG, Pfaar O, Fassio F, Hoffmann-Sommergruber K, Dramburg S, Agache I, Jutel M, Brough HA, Fonseca JA, Angier E, Boccabella C, Bonini M, Dunn Galvin A, Gibson PG, Gawlik R, Hannachi F, Kalayci Ö, Klimek L, Knibb R, Matricardi P, and Chivato T
- Subjects
- Humans, Pandemics, Confidentiality, Telemedicine methods, Hypersensitivity diagnosis, Hypersensitivity epidemiology, Hypersensitivity therapy, Asthma diagnosis, Asthma epidemiology, Asthma therapy
- Abstract
Efficacious, effective and efficient communication between healthcare professionals (HCP) and patients is essential to achieve a successful therapeutic alliance. Telemedicine (TM) has been used for decades but during the COVID-19 pandemic its use has become widespread. This position paper aims to describe the terminology and most important forms of TM among HCP and patients and review the existing studies on the uses of TM for asthma and allergy. Besides, the advantages and risks of TM are discussed, concluding that TM application reduces costs and time for both, HCP and patients, but cannot completely replace face-to-face visits for physical examinations and certain tests that are critical in asthma and allergy. From an ethical point of view, it is important to identify those involved in the TM process, ensure confidentiality and use communication channels that fully guarantee the security of the information. Unmet needs and directions for the future regarding implementation, data protection, privacy regulations, methodology and efficacy are described., (© 2023 European Academy of Allergy and Clinical Immunology and John Wiley & Sons Ltd.)
- Published
- 2024
- Full Text
- View/download PDF
35. EAACI/ENDA position paper on drug provocation testing.
- Author
-
Barbaud A, Garvey LH, Torres M, Laguna JJ, Arcolaci A, Bonadonna P, Scherer Hofmeier K, Chiriac AM, Cernadas J, Caubet JC, and Brockow K
- Subjects
- Child, Adult, Humans, Anti-Inflammatory Agents, Non-Steroidal adverse effects, Contrast Media, Monobactams, beta Lactam Antibiotics, Skin Tests methods, Anti-Bacterial Agents adverse effects, Drug Hypersensitivity diagnosis
- Abstract
In drug hypersensitivity, drug provocation testing (DPT), also called drug challenge, is the gold standard for investigation. In recent years, risk stratification has become an important tool for adjusting the diagnostic strategy to the perceived risk, whilst still maintaining a high level of safety for the patient. Skin tests are recommended before DPT but may be omitted in low-risk patients. The task force suggests a strict definition of such low-risk patients in children and adults. Based on experience and evidence from studies of allergy to beta-lactam antibiotics, an algorithm on how to adjust DPT to the risk, and when to omit skin tests before DPT, is presented. For other antibiotics, non-steroidal anti-inflammatory drugs and other drugs, skin tests are poorly validated and DPT is frequently necessary. We recommend performing DPT with chemotherapeutics and biologicals to avoid unnecessary desensitization procedures and DPT with skin tests negative contrast media. We suggest DPT with anesthetics only in highly specialized centers. Specifics of DPT to proton pump inhibitors, anticonvulsants and corticosteroids are discussed. This position paper provides general recommendations and guidance on optimizing use of DPT, whilst balancing benefits with patient safety and optimizing the use of the limited available resources., (© 2023 The Authors. Allergy published by European Academy of Allergy and Clinical Immunology and John Wiley & Sons Ltd.)
- Published
- 2024
- Full Text
- View/download PDF
36. Flow-based basophil activation test in immediate drug hypersensitivity. An EAACI task force position paper.
- Author
-
Mayorga C, Çelik GE, Pascal M, Hoffmann HJ, Eberlein B, Torres MJ, Brockow K, Garvey LH, Barbaud A, Madrigal-Burgaleta R, Caubet JC, and Ebo DG
- Subjects
- Humans, Child, Basophil Degranulation Test methods, Basophils, COVID-19 Vaccines, Hypersensitivity, Immediate, Drug Hypersensitivity diagnosis, Hypersensitivity
- Abstract
Diagnosing immediate drug hypersensitivity reactions (IDHRs) can pose a significant challenge and there is an urgent need for safe and reliable tests. Evidence has emerged that the basophil activation test (BAT), an in vitro assay that mirrors the in vivo response, can be a complementary test for many drugs. In this position paper, members of Task Force (TF) "Basophil activation test in the evaluation of Drug Hypersensitivity Reactions" from the European Academy of Allergy and Clinical Immunology (EAACI) present the data from a survey about the use and utility of BAT in IDHRs in Europe. The survey results indicate that there is a great interest for using BAT especially for diagnosing IDHRs. However, there are still main needs, mainly in the standardization of the protocols. Subsequently consensus-based recommendations were formulated for: (i) Technical aspects of BAT in IDHRs including type of sample, management of drugs, flow cytometry protocols, interpretation of the results; and (ii) Drug-specific aspects that should be taken into account when performing BAT in relation to betalactams, neuromuscular blocking agents, fluoroquinolones, chlorhexidine, opioids, radio contrast media, chemotherapeutics, biological agents, nonsteroidal anti-inflammatory drugs, COVID vaccine, and excipients. Moreover, aspects in the evaluation of pediatric population have also been considered. All this indicates that BAT offers the clinician and laboratory a complementary tool for a safe diagnostic for IDHRs, although its place in the diagnostic algorithm depends on the drug class and patient population (phenotype, geography, and age). The standardization of BAT is important for generalizing this method beyond the individual laboratory., (© 2023 The Authors. Allergy published by European Academy of Allergy and Clinical Immunology and John Wiley & Sons Ltd.)
- Published
- 2024
- Full Text
- View/download PDF
37. Multifunctional Fire‐Resistant Paper Based on Ultralong Hydroxyapatite Nanowires†.
- Author
-
Zhu, Ying‐Jie Please verify that the linked ORCID identifiers are correct for each author. The ORCID ID for 'Yingjie Zhu' seems to be invalid. Please check and supply the correct ORCID ID. --> Please confirm that given names (blue) and surnames/family na
- Subjects
CELLULOSE fibers ,NANOWIRE devices ,PROBLEM solving ,PAPER industry ,PLANT fibers ,NATURAL resources ,HYDROXYAPATITE - Abstract
Paper was one of the greatest inventions in ancient China, and it greatly promoted the rapid development of human civilization. Even in today's electronic information age, paper and paper‐derived products are still indispensable to people's daily work and life. However, the traditional paper based on cellulose fibers from plants has some problems. For instance: (1) papermaking consumes a large amount of precious natural resources such as trees; (2) the papermaking industry causes environmental pollution; (3) the traditional paper consisting of organic cellulose fibers is highly flammable and easy to burn; (4) the traditional paper based on cellulose fibers turns to yellow color with time; (5) the lifetime of the traditional paper is relatively short because of the degradation of cellulose fibers. More efforts are needed to investigate and solve these problems facing the traditional paper. In recent years, a new kind of multifunctional fire‐resistant paper based on ultralong hydroxyapatite nanowires has been developed and investigated for various applications, and many research findings have been documented in the literature. This review article provides a comprehensive summary and discussion on recent research advances for this new kind of multifunctional fire‐resistant paper based on ultralong hydroxyapatite nanowires, including the synthesis, properties, applications, and future perspectives. [ABSTRACT FROM AUTHOR]
- Published
- 2021
- Full Text
- View/download PDF
38. A strong, biodegradable and transparent cellulose‐based bioplastic stemmed from waste paper.
- Author
-
Liu, Mengmeng, Tong, Shoudi, Tong, Zhihan, Guan, Yuewen, and Sun, Yinan
- Subjects
WASTE paper ,BIODEGRADABLE plastics ,RENEWABLE natural resources ,BIODEGRADABLE materials ,RESOURCE exploitation ,DRINKING straws - Abstract
It is crucial and significant to boost the utilization of renewable resources and exploitation of biodegradable materials alternative to petrochemical plastics. Waste paper, mainly composed of cellulose (82–95 wt%) and derived from the lignocellulose, is a type of abundant, renewable, and biodegradable resource, whose recycling use and conversion to high value‐added products can reduce the pressure on the environment and exert immense economic benefits. Herein, four kinds of common waste paper (e.g., printing paper, newspaper, straw paper and roll paper) were converted into cellulose‐based bioplastic membranes by using ionic liquid 1‐butyl‐3‐methyl‐imidazolium chloride as solvent. The cellulose‐based membranes are smooth and compact, and their mechanical strength is prominently improved about 3–100 times comparison with the original paper. The maximum tensile strength of the film (F4) is over 127 Mpa and its optical transmittance reaches 80% at 450–800 nm wavelength. Besides, this kind of cellulose‐based films have excellent biodegradability. Thus, the results demonstrated that the cellulose‐based bioplastic membranes stemmed from waste paper possess a magnificent application prospect. [ABSTRACT FROM AUTHOR]
- Published
- 2023
- Full Text
- View/download PDF
39. Environmental sustainability in Africa: Insight into paper consumption by an African university.
- Author
-
Macaulay, Babajide Milton, Ajayi, Oluwaseun Matthew, Ogunmiloro, Ayomipo Taiwo, and Owoeye, Josiah Abolade
- Subjects
SUSTAINABILITY ,MULTICASTING (Computer networks) ,SOCCER fields ,OFFICES ,DEFORESTATION - Abstract
Copyright of African Journal of Ecology is the property of Wiley-Blackwell and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
- Published
- 2022
- Full Text
- View/download PDF
40. A novel approach to Hg2+ determination in water samples using carbon dots based on paper and fluorescence digital image analysis.
- Author
-
Maia, Matheus Valentin, Suarez, Willian Toito, dos Santos, Vagner Bezerra, de Oliveira, Severino Carlos Bezerra, and de Almeida, João Paulo Barbosa
- Subjects
DIGITAL images ,ELECTRONIC paper ,IMAGE analysis ,WATER sampling ,SUSTAINABLE chemistry ,WATER use ,QUANTUM dots ,MERCURY - Abstract
BACKGROUND: This work proposes the use of a simple, inexpensive method for the hydrothermal synthesis of fluorescent carbon dot nanoparticles (CDs) from rice starch aimed at the determination of Hg2+ in water. The proposed method involved using a paper‐based analytical device coupled to a 3D plate, with a UV‐LED chamber and a smartphone for the acquisition and analysis of the fluorescence digital images of the CDs. RESULTS: The size of the carbon dots ranged from 0.5 to 3 nm, with an average particle size of ~1 nm. The functionalization of carbon dots with methimazole allowed a high selective for Hg2+ determination. The results obtained showed a linear response R2 of 0.997 and Hg2+ concentration in the range of 0.5–45.0 μmol L−1 with a limit of detection and limit of quantitation of 0.23 and 0.62 μmol L−1, respectively. The results of the study show that there were no significant differences, at 95% confidence level, between the data obtained from the application of the proposed method and the reference method. CONCLUSION: The proposed method is in line with the principles of green chemistry, as it involves the use of renewable sources for starch extraction and a hydrothermal synthesis process that does not employ toxic reagents. In addition, the method employs only 15 μL reagent/sample. © 2024 Society of Chemical Industry (SCI). [ABSTRACT FROM AUTHOR]
- Published
- 2024
- Full Text
- View/download PDF
41. Data Paper as a Reward? Motivation, Consideration, and Perspective behind Data Paper Submission.
- Author
-
Huang, Pao Pei and Jeng, Wei
- Subjects
CITATION analysis ,PUBLICATIONS ,SCHOLARLY communication ,DATA ,SCHOLARLY publishing - Abstract
Data papers, as one of the channels to encourage researchers to open up research data under the open science movement, are expected to provide strong incentives through formal citations. However, few studies have investigated the drivers of this emerging type of publication. This study examines researchers' motivations, and considerations for data paper submission, as well as their perspectives on this scholarly publication. Through an in‐depth interview approach with ten data paper authors, our preliminary results found that, researchers are often driven by extrinsic factors to increase their publications, and data papers are sometimes viewed as territory claims before further research. Although the academic community widely recognizes the benefits of publishing data papers, some still cast a doubtful eye on its academic value and impact. We anticipate such insights on the driving forces and point of views of data papers could provide opportunities for stakeholders to fill gaps and strengthen the open science ecosystem. [ABSTRACT FROM AUTHOR]
- Published
- 2022
- Full Text
- View/download PDF
42. New insights into paper—Chemical paper analysis using Raman microscopy.
- Author
-
Pigorsch, Enrico
- Subjects
RAMAN microscopy ,ANALYTICAL chemistry ,PAPER chemicals ,IMAGING systems in chemistry ,FRAUD ,FORGERY - Abstract
Raman microscopic measurements were used to analyse the detailed chemical composition and structure of three old papers dating from the 15th and 19th centuries. Raman mapping measurements were performed on the surface and along the cross‐section of the papers with a lateral resolution of 1 μm. The resulting Raman images visualise the detailed chemical structure of the papers including all components such as the different types of cellulose fibre, filler pigments, sizing agents, colour pigments and also inadvertently added trace particles, such as minerals or products of biological activity. The results of the paper analysis are discussed in connection with their use for the detailed characterisation and dating of paper. This study demonstrates the great potential and the possibilities offered by Raman microscopy or Raman imaging for chemical paper analysis. Raman microscopy allows new insights into the chemical composition and structure of old papers and could considerably enhance the understanding of former papermaking practices and also combat forgery and the fraud of documents and artworks on paper. [ABSTRACT FROM AUTHOR]
- Published
- 2021
- Full Text
- View/download PDF
43. Hypersensitivity reactions to proton pump inhibitors. An EAACI position paper.
- Author
-
Bavbek S, Kepil Özdemir S, Bonadonna P, Atanaskovic-Markovic M, Barbaud A, Brockow K, Laguna Martinez J, Nakonechna A, Pagani M, Arcolacı A, Lombardo C, and Torres MJ
- Subjects
- Humans, Proton Pump Inhibitors adverse effects, Skin Tests, Drug Hypersensitivity diagnosis, Drug Hypersensitivity etiology, Drug Hypersensitivity therapy, Hypersensitivity, Hypersensitivity, Immediate diagnosis
- Abstract
Proton pump inhibitors (PPIs) are invaluable therapeutic options in a variety of dyspeptic diseases. In addition to their well-known risk profile, PPI consumption is related to food and environmental allergies, dysbiosis, osteoporosis, as well as immediate and delayed hypersensitivity reactions (HSRs). The latter, although a rare event, around 1%-3%, due to the extraordinarily high rate of prescription and consumption of PPIs are related to a substantial risk. In this Position Paper, we provide clinicians with practical evidence-based recommendations for the diagnosis and management of HSRs to PPIs. Furthermore, the unmet needs proposed in the document aim to stimulate more in-depth investigations in the topic., (© 2023 The Authors. Allergy published by European Academy of Allergy and Clinical Immunology and John Wiley & Sons Ltd.)
- Published
- 2024
- Full Text
- View/download PDF
44. Poly(m‐phenylene isophalamide) coated meta‐aramid paper with enhanced mechanical and insulation properties.
- Author
-
Gu, Siqi, Hu, Zuming, Yu, Junrong, Wang, Yan, and Li, Na
- Subjects
SLURRY ,DIELECTRIC breakdown ,DIELECTRIC strength ,DIELECTRIC properties ,ARAMID fibers ,SURFACE coatings ,POLYPHENYLENE oxide ,TENSILE strength - Abstract
Meta‐aramid paper is widely used in transformers because of its perfect heat resistance and dielectric properties. However, the loose structure and the voids of meta‐aramid paper may lead to lower breakdown strength, which will limit the applications of the insulated paper in harsh environment. Accordingly, it is urgent to enhance the dielectric breakdown strength of meta‐aramid paper. This work reports a simple and effective way to increase the breakdown strength of meta‐aramid paper. The paper was coated with salt‐free poly(m‐phenylene isophalamide) (PMIA) slurry and the solid contents of PMIA slurry were 4%, 6%, 8%, and 10%, respectively. To obtain salt‐free PMIA slurry, the meta‐aramid spun fibers were dissolved in dimethylacetamide. After coating 10% PMIA slurry on meta‐aramid paper, the paper demonstrated the best comprehensive performance. The tensile strengths in the cross and machine direction reached 40.67 and 90.76 MPa, which were increased by 29.93% and 20.16% compared with pristine paper. Meanwhile, the dielectric breakdown strength was up to 42.75 kV/mm (the breakdown strength of pristine paper was only 16.41 kV/mm). Because no crosslinking agent and adhesive were used, the coated meta‐aramid paper still maintained excellent properties. [ABSTRACT FROM AUTHOR]
- Published
- 2022
- Full Text
- View/download PDF
45. Skin‐Interfaced Bifluidic Paper‐Based Device for Quantitative Sweat Analysis.
- Author
-
Deng, Muhan, Li, Xiaofeng, Song, Kui, Yang, Hanlin, Wei, Wenkui, Duan, Xiaojun, Ouyang, Xiaoping, Cheng, Huanyu, and Wang, Xiufeng
- Subjects
- *
PERSPIRATION , *SWEAT glands , *RESOURCE-limited settings , *MEDICAL screening , *MICROFLUIDIC devices , *QUANTITATIVE research , *GLUCOSE - Abstract
The erratic, intermittent, and unpredictable nature of sweat production, resulting from physiological or psychological fluctuations, poses intricacies to consistently and accurately sample and evaluate sweat biomarkers. Skin‐interfaced microfluidic devices that rely on colorimetric mechanisms for semi‐quantitative detection are particularly susceptible to these inaccuracies due to variations in sweat secretion rate or instantaneous volume. This work introduces a skin‐interfaced colorimetric bifluidic sweat device with two synchronous channels to quantify sweat rate and biomarkers in real‐time, even during uncertain sweat activities. In the proposed bifluidic‐distance metric approach, with one channel to measure sweat rate and quantify collected sweat volume, the other channel can provide an accurate analysis of the biomarkers based on the collected sweat volume. The closed channel design also reduces evaporation and resists contamination from the external environment. The feasibility of the device is highlighted in a proof‐of‐the‐concept demonstration to analyze sweat chloride for evaluating hydration status and sweat glucose for assessing glucose levels. The low‐cost yet highly accurate device provides opportunities for clinical sweat analysis and disease screening in remote and low‐resource settings. The developed device platform can be facilely adapted for the other biomarkers when corresponding colorimetric reagents are exploited. [ABSTRACT FROM AUTHOR]
- Published
- 2024
- Full Text
- View/download PDF
46. Braiding Three‐Dimensional Paper‐Based Microfluidic Devices.
- Author
-
Jia, Cuiyun, Li, Bin, Pan, Jie, Zhu, Fengjiao, Bai, Xue, Liu, Xianming, Lin, Bingcheng, Chen, Yahong, and Lu, Yao
- Abstract
Three‐dimensional paper‐based microfluidic devices have shown great potential in various applications, including point‐of‐care diagnostics, environmental monitoring, and tissue engineering. However, their fabrication is still limited to stacking and origami methods. Inspired by the art of bamboo braiding in China, we developed a novel fabrication technique based on the braiding concept to create three‐dimensional paper‐based microfluidic devices with PDMS‐impregnated paper substrate as the building units. The resulting three‐dimensional paper device brings unique advantages, including compactness, facile disassembly, and real‐time flow visualization. The multiplexed glucose analysis with a braided device integrated with 16‐switchable valves for flow control was further fabricated to demonstrate the device's applicability. We envision braiding‐based fabrication technology opening new possibilities and bringing broad applications for three‐dimensional paper microfluidic devices. [ABSTRACT FROM AUTHOR]
- Published
- 2024
- Full Text
- View/download PDF
47. Exhibit 11: ADEA Position Papers.
- Published
- 2023
- Full Text
- View/download PDF
48. Fabrication of biodegradable kraft paper from buffing dust and jute fiber: Green solutions for packaging.
- Author
-
Noyon, Ashikur Rahaman, Karim, Suzaul, Rouf, Abdur, Jamal, Mamun, Layek, Rama Kanta, Sivanantham, Gokulkumar, and Uddin, Elias
- Subjects
KRAFT paper ,JUTE fiber ,WASTE recycling ,WASTE management ,SOLID waste ,PACKAGING recycling ,DUST - Abstract
Addressing solid waste recycling, this study aims to develop biodegradable kraft paper from buffing dust (BD) and post‐consumed jute fiber (JF). Employing a simple solution casting method with a polyurethane binder, the kraft paper was fabricated and characterized using UV–Vis spectroscopy, FTIR, XRD, SEM, TGA, OTR, biodegradability, and tensile tests. The findings revealed covalent and hydrogen bonding between BD and JF, forming a uniform surface. Notably, the composite exhibited improved thermal stability, enhanced gas barrier properties, and biodegradability compared to individual components. Furthermore, the composite also showed 57% higher tensile strength, 38% greater elongation, 20% increased hardness, and 9% higher density compared to buffing dust. Compared to jute fiber, the increases were 125%, 91%, 30%, and 19% respectively. Moreover, the composite excelled in gas barrier performance, surpassing BD and JF by a remarkable 61% and 73% increase respectively. These significant findings underscore the vast potential of the composite kraft paper as a versatile material suitable for various applications, including packaging, interior furnishing industries, and reinforcing elements in the footwear industry. By addressing waste management and promoting sustainability, this research contributes to the development of eco‐friendly materials that align with contemporary environmental concerns. Highlights: Covalent and hydrogen bonding enhance uniformity.Biodegradable kraft paper with improved properties.Impressive tensile strength, elongation, and hardness.Versatile material for eco‐friendly applications.Promotes sustainability and waste management. [ABSTRACT FROM AUTHOR]
- Published
- 2023
- Full Text
- View/download PDF
49. Rewritable Paper Based on Layered Metal–Organic Frameworks with NIR‐Triggered Reversible Color Switching.
- Author
-
Liu, Min, Ma, Shu‐Hua, Dong, Hui, Zeng, Feng‐Lian, Jin, Xue‐Ting, and Luo, Yang‐Hui
- Subjects
- *
ELECTRONIC paper , *METAL-organic frameworks , *LIGHT sources , *DATA warehousing , *COLOR - Abstract
Photoreversible color‐switching materials, which can reversibly change color in response to external light stimuli, have attracted increasing attention for their applications in time‐sensitive information storage and optical data storage fields. But most of the related materials are dyes or redox compounds with ultraviolet as the light source, dramatically limiting the cycling stability during discoloration processes. To address this problem, a near‐infrared (NIR)‐responsive rewritable paper via doping layered Co‐metal–organic frameworks (MOFs) into the stable polyvinylidene fluoride matrix is reported for the first time. Layered Co‐MOF shows a rapid color‐switching characteristic between orange and black blue upon NIR illumination on/off because of the interlayer spacing changes. Benefiting from the soft network structures of the matrix, Co‐MOF can be homogeneously distributed to deliver an outstanding reversibility performance, including rapid response, coloration in a short period, and decoloration within about 3 min in ambient air. The fabrication of new photoreversible color switching system holds great potential in communication security, which offers a viable pathway to achieve ink‐free photoreversible printing. [ABSTRACT FROM AUTHOR]
- Published
- 2023
- Full Text
- View/download PDF
50. KH550‐SiO2/polyimide insulating paper preparation and characterisation.
- Author
-
Chi, Minghe, Sun, Xue, Zhang, Xiaorui, Shi, Jiahao, Weng, Ling, and Yu, Yang
- Published
- 2024
- Full Text
- View/download PDF
Discovery Service for Jio Institute Digital Library
For full access to our library's resources, please sign in.