23 results on '"Kianfar E"'
Search Results
2. Photodynamic therapy in cancer treatment: properties and applications in nanoparticles
- Author
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Younus, L. A., primary, Mahmoud, Z. H., additional, Hamza, A. A., additional, Alaziz, K. M. A., additional, Ali, M. L., additional, Yasin, Y., additional, Jihad, W. S., additional, Rasheed, T., additional, Alkhawaldeh, A. K., additional, Ali, F. K., additional, and Kianfar, E., additional
- Published
- 2024
- Full Text
- View/download PDF
3. Antimicrobial finishing of textiles using nanomaterials
- Author
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Abdul-Reda Hussein, U., primary, Mahmoud, Z. H., additional, Alaziz, K. M. Abd, additional, Alid, M. L., additional, Yasin, Y., additional, Ali, F. K., additional, Faisal, A. N., additional, Abd, A. N., additional, and Kianfar, E., additional
- Published
- 2024
- Full Text
- View/download PDF
4. Organic chemical Nano sensors: synthesis, properties, and applications
- Author
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Mahmoud, Z. H., primary, Salman, H. N. K. AL, additional, Hussein, H. H., additional, Adhab, A. H., additional, Al-Majdi, K., additional, Rasheed, T., additional, Abdulhussien, H. A., additional, Sasirekha, N., additional, Abd, A. N., additional, and Kianfar, E., additional
- Published
- 2024
- Full Text
- View/download PDF
5. Application of nano-antibiotics in the diagnosis and treatment of infectious diseases
- Author
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Al-Awsi, G. R. L., primary, Alameri, A. A., additional, Al-Dhalimy, A. M. B., additional, Gabr, G. A., additional, and Kianfar, E., additional
- Published
- 2024
- Full Text
- View/download PDF
6. Hollow fiber membrane contactor based carbon dioxide absorption − stripping: a review
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Fattah, IMR, Farhan, ZA, Kontoleon, KJ, kianfar, E, Hadrawi, SK, Fattah, IMR, Farhan, ZA, Kontoleon, KJ, kianfar, E, and Hadrawi, SK
- Abstract
Energy need is predicted to increase by 47% in the next 30 years. Global warming resulting from the continuously increasing atmospheric Carbon dioxide concentration is becoming a serious and pressing issue that needs to be controlled. Carbon dioxide capture and storage/use (CCS/CCU) provide a promising route to mitigate the environmental consequences of Carbon dioxide emission from fossil fuel combustion. In recent years, hollow fiber membrane contactors are regarded as an advanced technique with several competitive advantages over conventional technologies such as easy scale-up, independent control of flow rates, more operational flexibility, absence of flooding and foaming as well as high interfacial area per unit volume. However, many factors such as the membrane material selection, proper choice of solvent, and membrane module design are critical to success. In this regard, this paper aims at covering all areas related to hollow fiber membranes, including membrane material, membrane modification, membrane surface modification, shape, solvent characterization, operating parameters and costs, hybrid process, hydrophilicity and hydrophobicity of the absorption materials in the membranes, Advantages and Disadvantages of Membrane Contact Technology, membrane lifetime, and energy consumption as well as commercially available systems. Current progress, future potential, and development of pilot-scale applications and thermal fluid of this strategy are also assessed carefully. Furthermore, pore wetting as the main technical challenge in membrane contactor industrial implementation for post- and pre-combustion Carbon dioxide capture processes is investigated in detail. Graphical abstract: [Figure not available: see fulltext.].
- Published
- 2023
7. Surveying haemoperfusion impact on COVID-19 from machine learning using Shapley values.
- Author
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Einollahi B, Javanbakht M, Ebrahimi M, Ahmadi M, Izadi M, Ghasemi S, Einollahi Z, Beyram B, Mirani A, and Kianfar E
- Subjects
- Humans, Retrospective Studies, Male, Female, Middle Aged, Iran, Adult, Aged, Treatment Outcome, Methylprednisolone administration & dosage, Methylprednisolone therapeutic use, COVID-19 Drug Treatment, Adrenal Cortex Hormones therapeutic use, Adrenal Cortex Hormones administration & dosage, Hemoperfusion methods, COVID-19, Machine Learning
- Abstract
Background: Haemoperfusion (HP) is an innovative extracorporeal therapy that utilizes special cartridges to filter the blood, effectively removing pro-inflammatory cytokines, toxins, and pathogens in COVID-19 patients. This retrospective cohort study aimed to assess the clinical benefits of HP for severe COVID-19 cases using Shapley values for machine learning models., Methods: The research involved 578 inpatients (≥ 20 years old) admitted to Baqiyatallah hospital (Tehran, Iran). The control group (359 patients) received standard treatment, including high doses of corticosteroids (a single 500 mg methylprednisolone pulse, followed by 250 mg for 2 days), categorized as regimen (I). On the other hand, the HP group (219 patients) received regimen II, consisting of the same corticosteroid treatment (regimen I) along with haemoperfusion using Cytosorb H300. The frequency of haemoperfusion sessions varied based on the type of lung involvement determined by chest CT scans. In addition, the value function v defines the Shapley value of the i th feature for the query point x , where the input matrix features represent individual characteristics, drugs, and history and clinical conditions of the patient., Results: Our data showed a favorable clinical response in the HP group compared to the control group. Notably, one-to-three sessions of HP using the CytoSorb
® 300 cartridge led to reduced ventilation requirements and mortality rates in severe COVID-19 patients. Shapley values were calculated to evaluate the contribution of haemoperfusion among other factors, such as side effects, medications, and individual characteristics, to COVID-19 patient outcomes. In addition, there is a significant difference between the two groups among the treatments and medications used remdesivir, adalimumab, tocilizumab, favipiravir, Interferon beta-1a, enoxaparin prophylaxis, enoxaparin full dose, heparin prophylaxis, and heparin full dose (P < 0.05). It seems that haemoperfusion has a positive impact on the reduction of inflammation markers and renal functional such as ferritin and creatinine, respectively, as well as D-dimer and WBC levels in the HP group were significantly lower than the control group., Conclusion: The findings indicated that haemoperfusion played a crucial role in predicting patient survival, making it a significant feature in classifying patients' prognoses., (© 2024. The Author(s), under exclusive licence to Springer Nature Switzerland AG.)- Published
- 2024
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8. CdIn 2 Se 4 @chitosan heterojunction nanocomposite with ultrahigh photocatalytic activity under sunlight driven photodegradation of organic pollutants.
- Author
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Mahmoud ZH, Ajaj Y, Hussein AM, Al-Salman HNK, Mustafa MA, Kadhum EH, Abdullaev S, Khuder SA, Ghadir GK, Hameed SM, Muzammil K, Islam S, and Kianfar E
- Subjects
- Photolysis, 2,4-Dichlorophenoxyacetic Acid chemistry, Catalysis, Cadmium chemistry, Chitosan chemistry, Nanocomposites chemistry, Ofloxacin chemistry
- Abstract
This research focused on synthesizing a CdIn
2 Se4 @Ch nanocomposite by doping CdIn2 Se4 into chitosan using a photolysis assisted ultrasonic process. The aim was to enhance the photodegradation efficiency of ofloxacin and 2,4-dichlorophenoxyacetic acid under sunlight. The synthesized CdIn2 Se4 @Ch nanocomposite was investigated via different techniques, including XRD, XPS, FTIR, TEM, DSC, TGA, UV-Vis and PL. The study also investigated the influence of various reaction parameters, including the effects of inorganic and organic ions. The synthesized nanocomposite demonstrated exceptional efficiency, achieving 86 % and 95 % removal rates, with corresponding rate constants of 0.025 and 0.047 min-1. This performance surpasses that of CdIn2 Se4 by approximately 1.35 and 2.25 times, respectively. The values of COD were decreased to 78 and 86 % for ofloxacin and 2,4-dichlorophenoxyacetic, while the TOC values decreased to 71 and 84 %, respectively, from their premier values. The improvement in performance is associated with the introduction of CdIn2 Se4 into chitosan, resulting in the self-integration of Cd into the catalyst. This creates a localized accumulation point for electrons, enhancing the efficiency of charge separation and further reducing the surface charge of chitosan. Experimental evidence suggests that superoxide and hydroxyl radicals play a significant role in the photodegradation of pollutants. Additionally, the nanocomposite exhibits excellent stability and can be reused up to five times, indicating remarkable stability and reusability of the developed photocatalyst., Competing Interests: Declaration of competing interest We wish to confirm that there are no known conflicts of interest associated with this publication and there has been no significant financial support for this work that could have influenced its outcome., (Copyright © 2024 Elsevier B.V. All rights reserved.)- Published
- 2024
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9. Experimental and theoretical study of improved mesoporous titanium dioxide perovskite solar cell: The impact of modification with graphene oxide.
- Author
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Hsu CY, Al-Salman HNK, Hussein HH, Juraev N, Mahmoud ZH, Al-Shuwaili SJ, Hassan Ahmed H, Ali Ami A, Ahmed NM, Azat S, and Kianfar E
- Abstract
The present study serves experimental and theoretical analyses in developing a hybrid advanced structure as a photolysis, which is based on electrospun Graphene Oxide-titanium dioxide (GO-TiO
2 ) nanofibers as an electron transfer material (ETMs) functionalized for perovskite solar cell (PVSCs) with GO. The prepared ETMs were utilized for the synthesis of mixed-cation (FAPbI3)0.8(MAPbBr3)0.2. The effect of GO on TiO2 and their chemical structure, electronic and morphological characteristic were investigated and discussed. The elaborated device, namely ITO/Bl-TiO2 /3 wt% GO-TiO2/(FAPbI3)0.8(MAPbBr3)0.2/spiro-MeTAD/Pt, displayed 20.14% disposition and conversion solar energy with fill factor (FF) of 1.176%, short circuit current density (Jsc) of 20.56 mA/cm2 and open circuit voltage (VOC) 0.912 V. The obtained efficiency is higher than titanium oxide (18.42%) and other prepared GO-TiO2 composite nanofibers based ETMs. The developed materials and device would facilitate elaboration of advanced functional materials and devices for energy storage applications., Competing Interests: The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper., (© 2024 The Authors.)- Published
- 2024
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10. 0,1,2,3D nanostructures, types of bulk nanostructured materials, and drug nanocrystals: An overview.
- Author
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Adul-Rasool AA, Athair DM, Zaidan HK, Rheima AM, Al-Sharify ZT, Mohammed SH, and Kianfar E
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- Humans, Nanotechnology methods, Drug Delivery Systems, Nanostructures chemistry, Nanoparticles chemistry
- Abstract
Functional materials are required to meet the needs of society, such as environmental protection, energy storage and conversion, integrated product production, biological and medical processing. bulk nanostructured materials are a research concept that combines nanotechnology with other research fields such as supramolecular chemistry, materials science, and life science to develop logically functional materials from nanodevices. In this review article, nanostructures are synthetized by different methods based on the types and nature of the nanomaterials. In a broad sense "top-down" and "bottom-up" are the two foremost methods to synthesize nanomaterials. In top-down method bulk materials have been reduced to nanomaterials, and in case of bottom-up method, the nanomaterials are synthesized from elementary level. The different methods which are being used to synthesize nanomaterials are chemical vapor deposition method, thermal decomposition, hydrothermal synthesis, solvothermal method, pulsed laser ablation, templating method, combustion method, microwave synthesis, gas phase method, and conventional Sol-Gel method. We also briefly discuss the various physical and chemical methods for producing nanomaterials. We then discuss the applications of functional materials in many areas such as energy storage, supercapacitors, sensors, wastewater treatment, and other biological applications such as drug delivery and drug nanocrystals. Finally, future challenges in materials nanoarchitecture and concepts for further development of functional nanomaterials are briefly discussed., Competing Interests: Declaration of competing interest The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper., (Copyright © 2024 The Author(s). Published by Elsevier Ltd.. All rights reserved.)
- Published
- 2024
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11. A graphene oxide/polyaniline nanocomposite biosensor: synthesis, characterization, and electrochemical detection of bilirubin.
- Author
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Ahmed NS, Hsu CY, Mahmoud ZH, Sayadi H, and Kianfar E
- Abstract
The level of free bilirubin is a considerable index for the characterization of jaundice-related diseases. Herein, a biosensor was fabricated via the immobilization of bilirubin oxidase (BOx) on graphene oxide (GO) and polyaniline (PANI) that were electrochemically co-precipitated on indium tin oxide (ITO) conductive glass. The structural enzyme electrode was characterized by FTIR, XRD, and Raman spectroscopy, while the spectral and thermal properties were investigated by UV-vis and thermogravimetric analysis (TGA). Owing to the activity of the fabricated BOx/GO@PANI/ITO biosensor, it could detect free bilirubin with good selectivity and sensitivity in a low response time. The electrochemical response was studied using electrochemical impedance spectroscopy (EIS) and cyclic voltammetry (CV). At polarization potential 0.2 V vs. Ag/AgCl, the fabricated sensor illustrated a response in only 2 s at 30 °C and pH 7.5. The LOD and LOQ for the BOx/GO@PANI/ITO biosensor were calculated and found to be 0.15 nM and 2.8 nM, respectively. The electrochemical signal showed a linear response in the concentration range 0.01-250 μM. At 5 °C, the biosensor demonstrated a half-time of 120 days, through which it could be utilized 100 times at this temperature conditions. By using a common colorimetric method, the data on bilirubin levels in serum showed a determination coefficient ( R
2 ) of 0.97., Competing Interests: The authors declare that they have no competing interests., (This journal is © The Royal Society of Chemistry.)- Published
- 2023
- Full Text
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12. Severe plastic deformation: Nanostructured materials, metal-based and polymer-based nanocomposites: A review.
- Author
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Fattahi M, Hsu CY, Ali AO, Mahmoud ZH, Dang NP, and Kianfar E
- Abstract
Significant deformation of the metal structure can be achieved without breaking or cracking the metal. There are several methods for deformation of metal plastics. The most important of these methods are angular channel pressing process, high-pressure torsion, multidirectional forging process, extrusion-cyclic compression process, cumulative climbing connection process, consecutive concreting and smoothing method, high-pressure pipe torsion. The nanocomposite is a multiphase material which the size of one of its phases is less than 100 nm in at least one dimension. Due to some unique properties, metal-based nanocomposites are widely used in engineering applications such as the automotive and aerospace industries. Polymer-based nanocomposites are two-phase systems with polymer-based and reinforcing phases (usually ceramic). These materials have a simpler synthesis process than metal-based nanocomposites and are used in a variety of applications such as the aerospace industry, gas pipelines, and sensors. Severe plastic deformation (SPD) is known to be the best method for producing bulk ultrafine grained and nanostructured materials with excellent properties. Different Severe plastic deformation methods were developed that are suitable for sheet and bulk solid materials. During the past decade, efforts have been made to create effective Severe plastic deformation processes suitable for producing cylindrical tubes. In this paper, we review Severe plastic deformation processes intended to nanostructured tubes, and their effects on material properties and severe plastic deformation is briefly introduced and its common methods for bulk materials, sheets, and pipes, as well as metal background nanocomposites, are concisely introduced and their microstructural and mechanical properties are discussed. The paper will focus on introduction of the tube Severe plastic deformation processes, and then comparison of them based on their advantages and disadvantages from the viewpoints of processing and properties., Competing Interests: Funding There is no funding to report for this submission. Conflict of interest the authors declare that they have no conflict of interest., (© 2023 The Authors.)
- Published
- 2023
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13. Photodynamic therapy in cancer treatment: properties and applications in nanoparticles.
- Author
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Younus LA, Mahmoud ZH, Hamza AA, Alaziz KMA, Ali ML, Yasin Y, Jihad WS, Rasheed T, Alkhawaldeh AK, Ali FK, and Kianfar E
- Subjects
- Humans, Photosynthesis, Photochemotherapy, Nanoparticles therapeutic use, Neoplasms drug therapy
- Abstract
Most of the treatment strategies for tumors and other disorders is photodynamic therapy (PDT). For several years, increasing the efficiency of nanostructured treatment devices, including light therapy, has been considered in different treatment methods. Light Dynamics The use of nanomaterial in this method's production and progress. The use of nanoparticles as carriers is a promising accomplishment, since all the criteria for an ideal photodynamic therapy agent can be given with these nanomaterials. The kinds of nanoparticles that have recently been used in photodynamic therapy are mentioned in this article. Latest advancements are being explored in the use of inorganic nanoparticles and biodegradable polymer-based nanomaterial as carriers of photosynthetic agents. Photosynthetic nanoparticles, self-propagating nanoparticles, and conversion nanoparticles are among the successful photodynamic therapy nanoparticles addressed in this report.
- Published
- 2023
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14. Antimicrobial finishing of textiles using nanomaterials.
- Author
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Abdul-Reda Hussein U, Mahmoud ZH, Alaziz KMA, Alid ML, Yasin Y, Ali FK, Faisal AN, Abd AN, and Kianfar E
- Subjects
- Humans, Textiles, Copper, Anti-Infective Agents pharmacology, Nanostructures, Nanoparticles
- Abstract
Metals, such as copper and silver, can be extremely toxic to bacteria at exceptionally low concentrations. Because of this biocidal activity, metals have been widely used as antimicrobial agents in a multitude of applications related with agriculture, healthcare, and the industry in general. A large number of microorganisms live in the human environment. if the balance of these creatures in nature is disturbed, the health of the individual and society will be threatened due to the production and emission of unpleasant odors and the reduction of health standards. The presence of microorganisms on textiles can cause adverse effects such as discoloration or staining on textiles, decomposition of fibrous materials, reduced strength, and eventually decay of textiles. Most fibers and polymers do not show resistance to the effects of microbes and by providing growth factors for microorganisms such as the right temperature and humidity, nutrients from sweat and fat from skin glands, dead skin cells as well as materials used in the stage of finishing the textiles causes the rapid growth and spread of various microbes. With the advent of nanotechnology, various industries and human daily life underwent changes. In recent years, increasing research on nanoparticles has led to the production of textiles with greater efficiency and added value. These modified textiles prevent the spread of unpleasant odors, the spread, and transmission of diseases. This article reviews the basics and principles of antimicrobial tetiles, as well as a brief overview of antimicrobial materials and nanostructures with antimicrobial properties.
- Published
- 2023
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15. Organic chemical Nano sensors: synthesis, properties, and applications.
- Author
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Mahmoud ZH, Salman HNKA, Hussein HH, Adhab AH, Al-Majdi K, Rasheed T, Abdulhussien HA, Sasirekha N, Abd AN, and Kianfar E
- Subjects
- Agriculture, Organic Chemicals, Nanoparticles
- Abstract
Nanosensors work on the "Nano" scale. "Nano" is a unit of measurement around 10- 9 m. A nanosensor is a device capable of carrying data and information about the behavior and characteristics of particles at the nanoscale level to the macroscopic level. Nanosensors can be used to detect chemical or mechanical information such as the presence of chemical species and nanoparticles or monitor physical parameters such as temperature on the nanoscale. Nanosensors are emerging as promising tools for applications in agriculture. They offer an enormous upgrade in selectivity, speed, and sensitivity compared to traditional chemical and biological methods. Nanosensors can be used for the determination of microbe and contaminants. With the advancement of science in the world and the advent of electronic equipment and the great changes that have taken place in recent decades, the need to build more accurate, smaller and more capable sensors was felt. Today, high-sensitivity sensors are used that are sensitive to small amounts of gas, heat, or radiation. Increasing the sensitivity, efficiency and accuracy of these sensors requires the discovery of new materials and tools. Nano sensors are nanometer-sized sensors that, due to their small size and nanometer size, have such high accuracy and responsiveness that they react even to the presence of several atoms of a gas. Nano sensors are inherently smaller and more sensitive than other sensors.
- Published
- 2023
- Full Text
- View/download PDF
16. Application of nano-antibiotics in the diagnosis and treatment of infectious diseases.
- Author
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Al-Awsi GRL, Alameri AA, Al-Dhalimy AMB, Gabr GA, and Kianfar E
- Subjects
- Animals, Humans, Anti-Bacterial Agents, Antifungal Agents, Liposomes therapeutic use, Silver, Metal Nanoparticles therapeutic use, Communicable Diseases diagnosis, Communicable Diseases drug therapy
- Abstract
Infectious diseases are the leading cause of death worldwide. Thus, nanotechnology provides an excellent opportunity to treat drug-resistant microbial infections. Numerous antibiotics have been used to inhibit the growth and kill of microbes, but the development of resistance and the emergence of side effects have severely limited the use of these agents. Due to the development of the nanotechnology, nanoparticles are widely used as antimicrobials. Silver and chitosan nanoparticles have antifungal, antiviral and antibacterial properties, and many studies confirm the antifungal properties of silver nanoparticles. Nowadays, the use of nanoparticles in the diagnosis and treatment of infectious diseases has developed due to less side effects and also the help of these particles in effective drug delivery to the target tissue. Liposomes are also used as carriers of drug delivery, genes, and modeling of cell membranes in both animals and humans. The ability of these liposomes to encapsulate large amounts of drugs, minimize unwanted side effects, high effectiveness and low toxicity has attracted the interest of researchers. This review article examines recent efforts by researchers to identify and treat infectious diseases using antimicrobial nanoparticles and drug nano-carriers.
- Published
- 2023
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17. Evaluation of a biosensor-based graphene oxide-DNA nanohybrid for lung cancer.
- Author
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Kadhim MM, Rheima AM, Abbas ZS, Jlood HH, Hachim SK, Kadhum WR, and Kianfar E
- Abstract
Lung cancer is nowadays among the most prevalent diseases worldwide and features the highest mortality rate among various cancers, indicating that early diagnosis of the disease is of paramount importance. Given that the conventional methods of cancer detection are expensive and time-consuming, special attention has been paid to the provision of less expensive and faster techniques. In recent years, the dramatic advances in nanotechnology and the development of various nanomaterials have led to activities in this context. Recent studies indicate that the graphene oxide (GO) nanomaterial has high potential in the design of nano biosensors for lung cancer detection owing to its unique properties. In the current article, a nano biosensor based on a DNA-GO nanohybrid is introduced to detect deletion mutations causing lung cancer. In this method, mutations were detected using a FAM-labeled DNA probe with fluorescence spectrometry. GO was synthesized according to Hummers' method and examined and confirmed using Fourier Transform Infrared (FT-IR) Spectrometry and UV-vis spectrometry methods and Transmission Electron Microscopy (TEM) images., Competing Interests: The author declare that they have no competing interests., (This journal is © The Royal Society of Chemistry.)
- Published
- 2023
- Full Text
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18. Retraction Note: Conductive Gels: Properties and Applications of Nanoelectronics.
- Author
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Trung ND, Huy DTN, Opulencia MJC, Lafta HA, Abed AM, Bokov DO, Shomurodov K, Van Thuc Master H, Hammid AT, and Kianfar E
- Published
- 2022
- Full Text
- View/download PDF
19. Conductive Gels: Properties and Applications of Nanoelectronics.
- Author
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Trung ND, Huy DTN, Jade Catalan Opulencia M, Lafta HA, Abed AM, Bokov DO, Shomurodov K, Van Thuc Master H, Thaeer Hammid A, and Kianfar E
- Abstract
Conductive gels are a special class of soft materials. They harness the 3D micro/nanostructures of gels with the electrical and optical properties of semiconductors, producing excellent novel attributes, like the formation of an intricate network of conducting micro/nanostructures that facilitates the easy movement of charge carriers. Conductive gels encompass interesting properties, like adhesion, porosity, swelling, and good mechanical properties compared to those of bulk conducting polymers. The porous structure of the gels allows the easy diffusion of ions and molecules and the swelling nature provides an effective interface between molecular chains and solution phases, whereas good mechanical properties enable their practical applications. Due to these excellent assets, conductive gels are promising candidates for applications like energy conversion and storage, sensors, medical and biodevices, actuators, superhydrophobic coatings, etc. Conductive gels offer promising applications, e.g., as soft sensors, energy storage, and wearable electronics. Hydrogels with ionic species have some potential in this area. However, they suffer from dehydration due to evaporation when exposed to the air which limits their applications and lifespan. In addition to conductive polymers and organic charge transfer complexes, there is another class of organic matter called "conductive gels" that are used in the organic nanoelectronics industry. The main features of this family of organic materials include controllable photoluminescence, use in photon upconversion technology, and storage of optical energy and its conversion into electricity. Various parameters change the electronic and optical behaviors of these materials, which can be changed by controlling some of the structural and chemical parameters of conductive gels, their electronic and optical behaviors depending on the applications. If the conjugated molecules with π bonds come together spontaneously, in a relative order, to form non-covalent bonds, they form a gel-like structure that has photoluminescence properties. The reason for this is the possibility of excitation of highest occupied molecular orbital level electrons of these molecules due to the collision of landing photons and their transfer to the lowest unoccupied molecular orbital level. This property can be used in various nanoelectronic applications such as field-effect organic transistors, organic solar cells, and sensors to detect explosives. In this paper, the general introduction of conductive or conjugated gels with π bonds is discussed and some of the physical issues surrounding electron excitation due to incident radiation and the mobility of charge carriers, the position, and role of conductive gels in each of these applications are discussed., (© 2022. The Author(s).)
- Published
- 2022
- Full Text
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20. Nano and Battery Anode: A Review.
- Author
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Majdi HS, Latipov ZA, Borisov V, Yuryevna NO, Kadhim MM, Suksatan W, Khlewee IH, and Kianfar E
- Abstract
Improving the anode properties, including increasing its capacity, is one of the basic necessities to improve battery performance. In this paper, high-capacity anodes with alloy performance are introduced, then the problem of fragmentation of these anodes and its effect during the cyclic life is stated. Then, the effect of reducing the size to the nanoscale in solving the problem of fragmentation and improving the properties is discussed, and finally the various forms of nanomaterials are examined. In this paper, electrode reduction in the anode, which is a nanoscale phenomenon, is described. The negative effects of this phenomenon on alloy anodes are expressed and how to eliminate these negative effects by preparing suitable nanostructures will be discussed. Also, the anodes of the titanium oxide family are introduced and the effects of Nano on the performance improvement of these anodes are expressed, and finally, the quasi-capacitive behavior, which is specific to Nano, will be introduced. Finally, the third type of anodes, exchange anodes, is introduced and their function is expressed. The effect of Nano on the reversibility of these anodes is mentioned. The advantages of nanotechnology for these electrodes are described. In this paper, it is found that nanotechnology, in addition to the common effects such as reducing the penetration distance and modulating the stress, also creates other interesting effects in this type of anode, such as capacitive quasi-capacitance, changing storage mechanism and lower volume change., (© 2021. The Author(s).)
- Published
- 2021
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21. Protein nanoparticles in drug delivery: animal protein, plant proteins and protein cages, albumin nanoparticles.
- Author
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Kianfar E
- Subjects
- Albumin-Bound Paclitaxel therapeutic use, Albumins chemistry, Animals, Drug Carriers therapeutic use, Drug Compounding, Gelatin chemistry, Humans, Milk Proteins administration & dosage, Milk Proteins chemistry, Neoplasms drug therapy, Paclitaxel administration & dosage, Plant Proteins chemistry, Serum Albumin administration & dosage, Serum Albumin chemistry, Albumins administration & dosage, Drug Delivery Systems methods, Nanoparticles administration & dosage, Nanoparticles chemistry, Plant Proteins administration & dosage
- Abstract
In this article, we will describe the properties of albumin and its biological functions, types of sources that can be used to produce albumin nanoparticles, methods of producing albumin nanoparticles, its therapeutic applications and the importance of albumin nanoparticles in the production of pharmaceutical formulations. In view of the increasing use of Abraxane and its approval for use in the treatment of several types of cancer and during the final stages of clinical trials for other cancers, to evaluate it and compare its effectiveness with conventional non formulations of chemotherapy Paclitaxel is paid. In this article, we will examine the role and importance of animal proteins in Nano medicine and the various benefits of these biomolecules for the preparation of drug delivery carriers and the characteristics of plant protein Nano carriers and protein Nano cages and their potentials in diagnosis and treatment. Finally, the advantages and disadvantages of protein nanoparticles are mentioned, as well as the methods of production of albumin nanoparticles, its therapeutic applications and the importance of albumin nanoparticles in the production of pharmaceutical formulations.
- Published
- 2021
- Full Text
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22. Spin-Forbidden Excitation: A New Approach for Triggering Photopharmacological Processes with Low-Intensity NIR Light.
- Author
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Kianfar E, Apaydin DH, and Knör G
- Abstract
Exposure to low-intensity radiation in the near-infrared (NIR) spectral region matching the optically transparent "phototherapeutic window" of biological tissues can be applied to directly populate spin-restricted excited states of light-responsive compounds. This unconventional and unprecedented approach is introduced herein as a new strategy to overcome some of the major unresolved problems observed in the rapidly emerging fields of photopharmacology and molecular photomedicine, where practical applications in living cells and organisms are still limited by undesired side reactions and insufficient light penetration. Water-soluble and biocompatible metal complexes with a significant degree of spin-orbit coupling were identified as target candidates for testing our new hypothesis. As a first example, a dark-stable manganese carbonyl complex acting as a visible-light-triggered CO-releasing molecule (Photo-CORM) is shown to be photoactivated by NIR radiation, although apparently no spectroscopically evident absorption bands are detectable in this low-energy region. This quite remarkable effect is ascribed to a strongly restricted, but obviously not completely forbidden optical population of the lowest triplet excited state manifold of the diamagnetic complex from the singlet ground state., Competing Interests: The authors declare no conflict of interest.
- Published
- 2017
- Full Text
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23. Two-electron carbon dioxide reduction catalyzed by rhenium(I) bis(imino)acenaphthene carbonyl complexes.
- Author
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Portenkirchner E, Kianfar E, Sariciftci NS, and Knör G
- Subjects
- Acetonitriles chemistry, Catalysis, Electrodes, Molecular Structure, Oxidation-Reduction, Water chemistry, Acenaphthenes chemistry, Carbon Dioxide chemistry, Carbon Monoxide chemistry, Electrons, Organometallic Compounds chemistry, Rhenium chemistry
- Abstract
Rhenium(I) carbonyl complexes carrying substituted bis(arylimino)acenaphthene ligands (BIAN-R) have been tested as potential catalysts for the two-electron reduction of carbon dioxide. Cyclic voltammetric studies as well as controlled potential electrolysis experiments were performed using CO2-saturated solutions of the complexes in acetonitrile and acetonitrile-water mixtures. Faradaic efficiencies of more than 30 % have been determined for the electrocatalytic production of CO. The effects of ligand substitution patterns and water content of the reaction medium on the catalytic performance of the new catalysts are discussed., (© 2014 The Authors. Published by Wiley-VCH Verlag GmbH & Co. KGaA. This is an open access article under the terms of the Creative Commons Attribution License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited.)
- Published
- 2014
- Full Text
- View/download PDF
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