9,439 results
Search Results
2. Improving the Bioactivity of Norfloxacin with Tablets Made from Paper
- Author
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Ayat Abdelkader, Laura Nallbati, and Cornelia M. Keck
- Subjects
paper ,BCS class ,dissolution ,bioavailability ,porous material ,drug delivery ,Pharmacy and materia medica ,RS1-441 - Abstract
(1) Background: Many drugs possess poor bioavailability, and many strategies are available to overcome this issue. In this study, smartFilm technology, i.e., a porous cellulose matrix (paper), in which the active compound can be loaded onto in an amorphous state was utilised for oral administration to improve the solubility and bioactivity of a poorly soluble BSC class IV antibiotic. (2) Methods: Norfloxacin was used as the model drug and loaded into commercially available paper. The resulting norfloxacin-loaded smartFilms were transformed into smartFilm granules via wet granulation and the resulting norfloxacin-loaded smartFilm granules were transformed into norfloxacin-loaded tablets made from paper, i.e., smartFilm tablets. The crystalline state of norfloxacin was investigated, as well as the pharmaceutical properties of the granules and the tablets. The bioactivity of the smartFilm tablets was assessed in vitro and ex vivo to determine the antibacterial activity of norfloxacin. The results were compared to a physical mixture tablet that contained non-loaded paper granules and equal amounts of norfloxacin as a crystalline powder. (3) Results: Norfloxacin-loaded smartFilm granules and norfloxacin-loaded smartFilm tablets contained norfloxacin in an amorphous state, which resulted in an improved and faster release of norfloxacin when compared to the physical mixture tablet. The bioactivity was up to three times higher when compared to the physical mixture tablet. The ex vivo model was demonstrated to be a useful tool that allows for a fast and cost-effective discrimination between “good” and “bad” formulations. It provides realistic physiological conditions and can therefore yield meaningful, additional biopharmaceutical information that cannot be assessed in classical in vitro experiments. (4) Conclusions: smartFilm tablets are a promising, universal, industrially feasible and cost-effective formulation strategy for improved solubility and enhanced bioactivity of poorly soluble drugs.
- Published
- 2023
- Full Text
- View/download PDF
3. "Drug Supply Apparatus" in Patent Application Approval Process (USPTO 20240228087).
- Subjects
PATENT applications ,INVENTORS ,DRUG packaging - Abstract
A patent application for a drug supply apparatus has been made available online. The inventors have identified a problem with current packaging paper connecting apparatuses, which require manual replacement and result in a pause in drug supply. The inventors propose a drug supply apparatus that includes a drug supply unit, downstream and upstream conveying units for strip-shaped, folded packaging paper, and a connecting part to join the two papers. This apparatus aims to shorten the time required to replace packaging paper and minimize interruptions in drug supply. [Extracted from the article]
- Published
- 2024
4. Patent Application Titled "Drug Supply Apparatus" Published Online (USPTO 20240228086).
- Subjects
PATENT applications ,INTERNET publishing ,DRUG packaging - Abstract
A patent application titled "Drug Supply Apparatus" has been published online by the US Patent and Trademark Office. The inventors, OUMI, Syou; SHIBATA, Shiyouji; UETA, Toshiaki, filed the application on March 25, 2024. The application describes a drug supply apparatus that aims to smoothly convey packaging paper during the replacement of packaging paper in a drug supply unit. The apparatus includes downstream and upstream conveying units that handle strip-shaped and folded drug packaging paper. The invention seeks to increase the efficiency of packaging paper replacement in drug supply systems. [Extracted from the article]
- Published
- 2024
5. REVIEW PAPER BIOSENSORS FOR EARLY DIAGNOSIS AND AUTOMATED DRUG DELIVERY IN PANCREATIC CANCER.
- Author
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S., ANAND
- Subjects
CANCER diagnosis ,DRUG delivery systems ,PANCREATIC cancer ,MACHINE learning ,CANCER prognosis - Abstract
Pancreatic cancer remains one of the most challenging malignancies to diagnose and treat effectively, resulting in poor patient outcomes due to late-stage detection and limited therapeutic options. The emergence of biosensors has revolutionized cancer diagnosis and therapy, providing new avenues for early detection and personalized treatment. This paper explores the development and integration of biosensors within a unique expert system for pancreatic cancer diagnosis and drug delivery automation. It discusses the principles, types, and applications of biosensors in pancreatic cancer diagnosis, their role in automating drug delivery, and the design of an expert system that leverages these technologies to enhance patient outcomes. [ABSTRACT FROM AUTHOR]
- Published
- 2024
- Full Text
- View/download PDF
6. Improving the Bioactivity of Norfloxacin with Tablets Made from Paper.
- Author
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Abdelkader, Ayat, Nallbati, Laura, and Keck, Cornelia M.
- Subjects
- *
NORFLOXACIN , *TABLETING , *ORAL drug administration , *ANTIBACTERIAL agents , *GRANULATION , *ANTIBIOTICS - Abstract
(1) Background: Many drugs possess poor bioavailability, and many strategies are available to overcome this issue. In this study, smartFilm technology, i.e., a porous cellulose matrix (paper), in which the active compound can be loaded onto in an amorphous state was utilised for oral administration to improve the solubility and bioactivity of a poorly soluble BSC class IV antibiotic. (2) Methods: Norfloxacin was used as the model drug and loaded into commercially available paper. The resulting norfloxacin-loaded smartFilms were transformed into smartFilm granules via wet granulation and the resulting norfloxacin-loaded smartFilm granules were transformed into norfloxacin-loaded tablets made from paper, i.e., smartFilm tablets. The crystalline state of norfloxacin was investigated, as well as the pharmaceutical properties of the granules and the tablets. The bioactivity of the smartFilm tablets was assessed in vitro and ex vivo to determine the antibacterial activity of norfloxacin. The results were compared to a physical mixture tablet that contained non-loaded paper granules and equal amounts of norfloxacin as a crystalline powder. (3) Results: Norfloxacin-loaded smartFilm granules and norfloxacin-loaded smartFilm tablets contained norfloxacin in an amorphous state, which resulted in an improved and faster release of norfloxacin when compared to the physical mixture tablet. The bioactivity was up to three times higher when compared to the physical mixture tablet. The ex vivo model was demonstrated to be a useful tool that allows for a fast and cost-effective discrimination between "good" and "bad" formulations. It provides realistic physiological conditions and can therefore yield meaningful, additional biopharmaceutical information that cannot be assessed in classical in vitro experiments. (4) Conclusions: smartFilm tablets are a promising, universal, industrially feasible and cost-effective formulation strategy for improved solubility and enhanced bioactivity of poorly soluble drugs. [ABSTRACT FROM AUTHOR]
- Published
- 2023
- Full Text
- View/download PDF
7. Paper-based microfluidics for rapid diagnostics and drug delivery
- Author
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Zhugen Yang, Kang Mao, Xiaocui Min, Hua Zhang, Kuankuan Zhang, Haorui Cao, and Yongkun Guo
- Subjects
0303 health sciences ,Medical diagnostic ,Foodborne pathogen ,Computer science ,Microfluidics ,Loop-mediated isothermal amplification ,diagnostic ,Pharmaceutical Science ,02 engineering and technology ,Paper based ,021001 nanoscience & nanotechnology ,03 medical and health sciences ,Paper-based microfluidics ,Molecular Diagnostic Techniques ,Pharmaceutical Preparations ,Infectious disease diagnosis ,LAMP ,Lab-On-A-Chip Devices ,drug delivery ,Drug delivery ,Systems engineering ,0210 nano-technology ,Nucleic Acid Amplification Techniques ,030304 developmental biology - Abstract
Paper is a common material that is promising for constructing microfluidic chips (lab-on-a-paper) for diagnostics and drug delivery for biomedical applications. In the past decade, extensive research on paper-based microfluidics has accumulated a large number of scientific publications in the fields of biomedical diagnosis, food safety, environmental health, drug screening and delivery. This review focuses on the recent progress on paper-based microfluidic technology with an emphasis on the design, optimization and application of the technology platform, in particular for medical diagnostics and drug delivery. Novel advances have concentrated on engineering paper devices for point-of-care (POC) diagnostics, which could be integrated with nucleic acid-based tests and isothermal amplification experiments, enabling rapid sample-to-answer assays for field testing. Among the isothermal amplification experiments, loop-mediated isothermal amplification (LAMP), an extremely sensitive nucleic acid test, specifically identifies ultralow concentrations of DNA/RNA from practical samples for diagnosing diseases. We thus mainly focus on the paper device-based LAMP assay for the rapid infectious disease diagnosis, foodborne pathogen analysis, veterinary diagnosis, plant diagnosis, and environmental public health evaluation. We also outlined progress on paper microfluidic devices for drug delivery. The paper concludes with a discussion on the challenges of this technology and our insights into how to advance science and technology towards the development of fully functional paper devices in diagnostics and drug delivery.
- Published
- 2020
8. A Biodegradable Hybrid Micro/Nano Conductive Zinc Paste for Paper‐Based Flexible Bioelectronics.
- Author
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Zareei, Amin, Selvamani, Vidhya, Gopalakrishnan, Sarath, Kadian, Sachin, Maruthamuthu, Murali Kannan, He, Zihao, Nguyen, Juliane, Wang, Haiyan, and Rahimi, Rahim
- Subjects
- *
BIOELECTRONICS , *TECHNOLOGICAL innovations , *SCREEN process printing , *ZINC , *ELECTRIC conductivity , *BIODEGRADABLE plastics , *BIODEGRADABLE nanoparticles - Abstract
Paper‐based electronics are emerging as a new class of technology with broad areas of application. Despite several efforts to fabricate new types of flexible electronic devices by screen printing of conductive paste, many of them are often nonbiodegradable, toxic, and expensive, limiting their practical use in bioresorbable paper‐based electronics. To address this need, a highly conductive and biodegradable bimodal conductive paste is developed using cost‐effective zinc‐based micro and nanoparticles with a facile low‐temperature sintering process compatible with paper substrates. The two‐step sintering process involves the removal of the insulating zinc oxide layer by spray coating acetic acid followed by a heat press sintering process to ensure the formation of highly packed and continuous metallic traces. The required conditions for the heat press sintering process are systematically studied using electrical, optical, and mechanical characterization techniques. The results of these investigations revealed an ultra‐packed microstructure with high electrical conductivity (0.5 × 105 S m−1) and low oxide content that is obtained with a heat press sintering setting of 220 °C for 60 s. Finally, as a proof of concept, the conductive paste with an optimized sintering process is used to fabricate a wearable wireless heater for remote‐controlled release of therapeutics. The controlled delivery of the system is validated in the practical and on‐demand delivery of antibiotics for eradicating commonly found bacteria such as Staphylococcus aureus in dermal wound infections. The biocompatibility of all the materials and manufacturing process is validated by NIH/3T3 fibroblast cells via MTT assay and live/dead staining. [ABSTRACT FROM AUTHOR]
- Published
- 2022
- Full Text
- View/download PDF
9. Path towards efficient paediatric formulation development based on partnering with clinical pharmacologists and clinicians, a conect4children expert group white paper.
- Author
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Walsh, Jennifer, Schaufelberger, Daniel, Iurian, Sonia, Klein, Sandra, Batchelor, Hannah, Turner, Roy, Gizurarson, Sveinbjörn, Boltri, Luigi, Alessandrini, Elisa, and Tuleu, Catherine
- Subjects
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PHARMACOLOGISTS , *CHILD patients , *PEDIATRICS , *MEDICAL personnel , *AGE groups , *DECISION making in children , *DECISION making - Abstract
Improved global access to novel age‐appropriate formulations for paediatric subsets, either of new chemical entities or existing drugs, is a priority to ensure that medicines meet the needs of these patients. However, despite regulatory incentives, the introduction to the market of paediatric formulations still lags behind adult products. This is mainly caused by additional complexities associated with the development of acceptable age‐appropriate paediatric medicines. This position paper recommends the use of a paediatric Quality Target Product Profile as an efficient tool to facilitate early planning and decision making across all teams involved in paediatric formulation development during the children‐centric formulation design for new chemical entities, or to repurpose/reformulate off‐patent drugs. Essential key attributes of a paediatric formulation are suggested and described. Moreover, greater collaboration between formulation experts and clinical colleagues, including healthcare professionals, is advocated to lead to safe and effective, age‐appropriate medicinal products. Acceptability testing should be a secondary endpoint in paediatric clinical trials to ensure postmarketing adherence is not compromised by a lack of acceptability. Not knowing the indications and the related age groups and potential dosing regimens early enough is still a major hurdle for efficient paediatric formulation development; however, the proposed paediatric Quality Target Product Profile could be a valuable collaborative tool for planning and decision making to expedite paediatric product development, particularly for those with limited experience in developing a paediatric product. [ABSTRACT FROM AUTHOR]
- Published
- 2022
- Full Text
- View/download PDF
10. Microfluidic paper-based devices
- Author
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Iman Hashemzadeh and Akbar Hasanzadeh
- Subjects
Research groups ,Computer science ,Microfluidics ,Drug delivery ,Nanotechnology ,Paper based - Abstract
Microfluidic paper-based analytical devices, so-called μPADs, were presented for the first time by Whitesides and colleagues in 2007. Since then, several research groups have focused on designing, synthesizing, and investigating the role of microfluidic paper-based devices in different applications including biosensors, drug delivery, gene delivery, and so on. In this chapter, we focused on different aspects of them, to provide an applicable perspective as well as review the recent advances in this field.
- Published
- 2021
11. Commentary on the EMA reflection paper on the pharmaceutical development of medicines for use in the older population.
- Author
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van Riet‐Nales, Diana A., van den Bemt, Bart, van Bodegom, David, Cerreta, Francesca, Dooley, Brian, Eggenschwyler, Doris, Hirschlérova, Blanka, Jansen, Paul A. F., Karapinar‐Çarkit, Fatma, Moran, Abigail, Span, Jan, Stegemann, Sven, and Sundberg, Katarina
- Subjects
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OLDER patients , *OLDER people , *MEDICAL personnel , *POPULATION aging , *DRUG laws , *DRUGS - Abstract
Older people are often affected by impaired organ and bodily functions resulting in multimorbidity and polypharmacy, turning them into the main user group of many medicines. Very often, medicines have not specifically been developed for older people, causing practical medication problems for them like limited availability of easy to swallow formulations, easy to open packaging and dosing instructions for enteral administration. In 2020, the European Medicines Agency (EMA) published a reflection paper 'Pharmaceutical development of medicines for use in the older population', which discusses how the emerging needs of an ageing European population can be addressed by medicines regulation. The paper intends to help industry to better consider the needs of older people during pharmaceutical/clinical medicines development by summarising data on the most relevant topics, providing early suggestions on how to move forward and prompting expert discussions and studies into knowledge gaps. Topics include patient acceptability, (dis)advantages of an administration route, formulation, dosage form, packaging, dosing device and user instruction. While the paper is directed at older people and the pharmaceutical industry, the reflections are also relevant to younger patients with similar disease‐related needs and of value to other stakeholders parties, e.g., healthcare professionals, academics, patients and caregivers, as the paper makes clear what can be expected from industry and where collaborative work is needed. This commentary provides an overview of the different steps in the development of the reflection paper, discusses points considered most controversial and/or subject to (multidisciplinary) expert discussions and indicates their value for real world clinical practice. [ABSTRACT FROM AUTHOR]
- Published
- 2022
- Full Text
- View/download PDF
12. Call for Special Issue Papers: Electrically Charged Biomaterials for Drug Delivery and Tissue Repair: Deadline for Manuscript Submission: April 1, 2020
- Author
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Mansoor M. Amiji and Ambika G. Bajpayee
- Subjects
Transplantation ,medicine.medical_specialty ,business.industry ,Drug delivery ,Biomedical Engineering ,Medicine (miscellaneous) ,Medicine ,Medical physics ,Electrical and Electronic Engineering ,Tissue repair ,business ,Calls for Papers - Published
- 2020
13. Advances in paper-analytical methods for pharmaceutical analysis.
- Author
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Sharma, Niraj, Barstis, Toni, and Giri, Basant
- Subjects
- *
MICROFLUIDIC devices , *CELLULOSE fibers , *GLASS fibers , *DRUG use testing , *COST effectiveness - Abstract
Paper devices have many advantages over other microfluidic devices. The paper substrate, from cellulose to glass fiber, is an inexpensive substrate that can be readily modified to suit a variety of applications. Milli- to micro-scale patterns can be designed to create a fast, cost-effective device that uses small amounts of reagents and samples. Finally, well-established chemical and biological methods can be adapted to paper to yield a portable device that can be used in resource-limited areas (e.g., field work). Altogether, the paper devices have grown into reliable analytical devices for screening low quality pharmaceuticals. This review article presents fabrication processes, detection techniques, and applications of paper microfluidic devices toward pharmaceutical screening. [ABSTRACT FROM AUTHOR]
- Published
- 2018
- Full Text
- View/download PDF
14. Paper-based microfluidics for rapid diagnostics and drug delivery.
- Author
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Mao, Kang, Min, Xiaocui, Zhang, Hua, Zhang, Kuankuan, Cao, Haorui, Guo, Yongkun, and Yang, Zhugen
- Subjects
- *
DRUG delivery devices , *MICROFLUIDIC devices , *DNA microarrays , *MICROFLUIDICS , *ENVIRONMENTAL health , *NUCLEIC acids , *DIAGNOSIS , *FOOD pathogens - Abstract
Paper is a common material that is promising for constructing microfluidic chips (lab-on-a-paper) for diagnostics and drug delivery for biomedical applications. In the past decade, extensive research on paper-based microfluidics has accumulated a large number of scientific publications in the fields of biomedical diagnosis, food safety, environmental health, drug screening and delivery. This review focuses on the recent progress on paper-based microfluidic technology with an emphasis on the design, optimization and application of the technology platform, in particular for medical diagnostics and drug delivery. Novel advances have concentrated on engineering paper devices for point-of-care (POC) diagnostics, which could be integrated with nucleic acid-based tests and isothermal amplification experiments, enabling rapid sample-to-answer assays for field testing. Among the isothermal amplification experiments, loop-mediated isothermal amplification (LAMP), an extremely sensitive nucleic acid test, specifically identifies ultralow concentrations of DNA/RNA from practical samples for diagnosing diseases. We thus mainly focus on the paper device-based LAMP assay for the rapid infectious disease diagnosis, foodborne pathogen analysis, veterinary diagnosis, plant diagnosis, and environmental public health evaluation. We also outlined progress on paper microfluidic devices for drug delivery. The paper concludes with a discussion on the challenges of this technology and our insights into how to advance science and technology towards the development of fully functional paper devices in diagnostics and drug delivery. Unlabelled Image [ABSTRACT FROM AUTHOR]
- Published
- 2020
- Full Text
- View/download PDF
15. Developing patient centric medicines for older people: reflections from the draft EMA paper on the pharmaceutical development of medicines for use in the older population
- Author
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van Riet-Nales, Diana A, Sundberg, Katarina, de Boer, Anthonius, Hirschlérova, Blanka, Afd Pharmacoepi & Clinical Pharmacology, and Pharmacoepidemiology and Clinical Pharmacology
- Subjects
aged 80 and over [MeSH] ,regulations ,European Medicines Agency (EMA) ,drug delivery ,public health ,Taverne ,health policy ,clinical pharmacology ,technology pharmaceutical [MeSH] ,drug regulation ,medication safety ,medication errors [MeSH] ,drug development - Abstract
Increased global longevity requires a re-evaluation of current structures in society to adapt to the consequential demographic shift. As (very) old people are prone to impaired human organ and body functions resulting in e.g. multimorbidity, polypharmacy, hospitalisation, and problems in medication management, it is increasingly acknowledged that re-evaluations should include the suitability of pharmaceutical patient care as one of the cornerstones of public health. Following the 2011 European Medicines Agency (EMA) "Geriatric Strategy", in 2017, the EMA published the draft "Reflection paper on the pharmaceutical development of medicines for use in the older population". The draft paper was opened for public consultation and specific attention and feedback (either supportive or with a proposal for revision) was asked on three design aspects: tablet breaking, drug administration through enteral feeding tubes and medication management. Following publication, the draft paper was presented at two public conferences attended by participants from different disciplines. This manuscript is intended to draw the attention of different stakeholder parties on the urgency to collaborate on the emerging issues arising from increasing longevity and multimorbidity, and especially those associated with pharmaceutical patient care and the drug product design, including the need for collaborative research into existing or emerging knowledge gaps. The manuscript focuses on the three aforementioned aspects of pharmaceutical development (tablet breaking, drug administration through enteral feeding tubes and medication management) as these highly relate to medication safety and efficacy and constitute persistent and typical challenges for older people, caregivers and healthcare professionals in daily clinical practice.
- Published
- 2020
16. Applying extracellular vesicles based therapeutics in clinical trials - an ISEV position paper
- Author
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Lener, Thomas, Gimona, Mario, Aigner, Ludwig, Börger, Verena, Buzas, Edit, Camussi, Giovanni, Chaput, Nathalie, Chatterjee, Devasis, Court, Felipe A, Del Portillo, Hernando A, O'Driscoll, Lorraine, Fais, Stefano, Falcon-Perez, Juan M, Felderhoff-Mueser, Ursula, Fraile, Lorenzo, Gho, Yong Song, Görgens, André, Gupta, Ramesh C, Hendrix, An, Hermann, Dirk M, Hill, Andrew F, Hochberg, Fred, Horn, Peter A, de Kleijn, Dominique, Kordelas, Lambros, Kramer, Boris W, Krämer-Albers, Eva-Maria, Laner-Plamberger, Sandra, Laitinen, Saara, Leonardi, Tommaso, Lorenowicz, Magdalena J, Lim, Sai Kiang, Lötvall, Jan, Maguire, Casey A, Marcilla, Antonio, Nazarenko, Irina, Ochiya, Takahiro, Patel, Tushar, Pedersen, Shona, Pocsfalvi, Gabriella, Pluchino, Stefano, Quesenberry, Peter, Reischl, Ilona G, Rivera, Francisco J, Sanzenbacher, Ralf, Schallmoser, Katharina, Slaper-Cortenbach, Ineke, Strunk, Dirk, Tonn, Torsten, Vader, Pieter, van Balkom, Bas W M, Wauben, Marca, Andaloussi, Samir El, Théry, Clotilde, Rohde, Eva, Giebel, Bernd, Infection & Immunity, Fertility & Reproduction, dI&I I&I-1, dB&C I&I, LS Celbiologie-Algemeen, Infection & Immunity, Fertility & Reproduction, dI&I I&I-1, dB&C I&I, LS Celbiologie-Algemeen, Kindergeneeskunde, MUMC+: MA Medische Staf Kindergeneeskunde (9), RS: MHeNs - R3 - Neuroscience, RS: GROW - Developmental Biology, and RS: GROW - R4 - Reproductive and Perinatal Medicine
- Subjects
Bioquímica clínica ,Medizin ,ISCHEMIA-REPERFUSION INJURY ,Bioinformatics ,immunology ,neurobiology ,haematology ,stem cells ,tissue regeneration ,tumour vaccination ,regulation ,0302 clinical medicine ,Clinical trials ,Clinical investigation ,VERSUS-HOST-DISEASE ,Medicine and Health Sciences ,FIELD-FLOW FRACTIONATION ,Medicine ,Immunologia ,media_common ,0303 health sciences ,lcsh:Cytology ,OUTER-MEMBRANE VESICLES ,Hematology ,Biologia experimental ,3. Good health ,TUMOR-DERIVED EXOSOMES ,030220 oncology & carcinogenesis ,Drug delivery ,Position Paper ,Cèl·lules mare ,Neurobiologia ,Histology ,Medicina Investigació ,Cèl·lules ,NANOPARTICLE TRACKING ANALYSIS ,Extracellular vesicles ,MESENCHYMAL STEM-CELLS ,03 medical and health sciences ,Journal Article ,media_common.cataloged_instance ,REGULATORY T-CELLS ,European union ,lcsh:QH573-671 ,ENDOTHELIAL PROGENITOR CELLS ,Hematologia ,030304 developmental biology ,business.industry ,Cell Biology ,Microvesicles ,Clinical trial ,Position paper ,Pharmaceutical manufacturing ,UMBILICAL-CORD BLOOD ,business ,Neuroscience ,Assaigs clínics - Abstract
Extracellular vesicles (EVs), such as exosomes and microvesicles, are released by different cell types and participate in physiological and pathophysiological processes. EVs mediate intercellular communication as cell-derived extracellular signalling organelles that transmit specific information from their cell of origin to their target cells. As a result of these properties, EVs of defined cell types may serve as novel tools for various therapeutic approaches, including (a) anti-tumour therapy, (b) pathogen vaccination, (c) immune-modulatory and regenerative therapies and (d) drug delivery. The translation of EVs into clinical therapies requires the categorization of EV-based therapeutics in compliance with existing regulatory frameworks. As the classification defines subsequent requirements for manufacturing, quality control and clinical investigation, it is of major importance to define whether EVs are considered the active drug components or primarily serve as drug delivery vehicles. For an effective and particularly safe translation of EV-based therapies into clinical practice, a high level of cooperation between researchers, clinicians and competent authorities is essential. In this position statement, basic and clinical scientists, as members of the International Society for Extracellular Vesicles (ISEV) and of the European Cooperation in Science and Technology (COST) program of the European Union, namely European Network on Microvesicles and Exosomes in Health and Disease (ME-HaD), summarize recent developments and the current knowledge of EV-based therapies. Aspects of safety and regulatory requirements that must be considered for pharmaceutical manufacturing and clinical application are highlighted. Production and quality control processes are discussed. Strategies to promote the therapeutic application of EVs in future clinical studies are addressed.
- Published
- 2015
17. Synthesis of Magnetic Iron Oxide-Incorporated Cellulose Composite Particles: An Investigation on Antioxidant Properties and Drug Delivery Applications.
- Author
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Naznin, Arifa, Dhar, Palash Kumar, Dutta, Sagar Kumar, Chakrabarty, Sumon, Karmakar, Utpal Kumar, Kundu, Pritam, Hossain, Muhammad Sarwar, Barai, Hasi Rani, and Haque, Md. Rezaul
- Subjects
MAGNETIC nanoparticle hyperthermia ,IRON oxide nanoparticles ,IRON oxides ,WASTE paper ,FIELD emission electron microscopy ,CELLULOSE ,WASTE products ,DRUG delivery systems - Abstract
In recent years, polymer-supported magnetic iron oxide nanoparticles (MIO-NPs) have gained a lot of attention in biomedical and healthcare applications due to their unique magnetic properties, low toxicity, cost-effectiveness, biocompatibility, and biodegradability. In this study, waste tissue papers (WTP) and sugarcane bagasse (SCB) were utilized to prepare magnetic iron oxide (MIO)-incorporated WTP/MIO and SCB/MIO nanocomposite particles (NCPs) based on in situ co-precipitation methods, and they were characterized using advanced spectroscopic techniques. In addition, their anti-oxidant and drug-delivery properties were investigated. Field emission scanning electron microscopy (FESEM) and X-ray diffraction (XRD) analyses revealed that the shapes of the MIO-NPs, SCB/MIO-NCPs, and WTP/MIO-NCPs were agglomerated and irregularly spherical with a crystallite size of 12.38 nm, 10.85 nm, and 11.47 nm, respectively. Vibrational sample magnetometry (VSM) analysis showed that both the NPs and the NCPs were paramagnetic. The free radical scavenging assay ascertained that the WTP/MIO-NCPs, SCB/MIO-NCPs, and MIO-NPs exhibited almost negligible antioxidant activity in comparison to ascorbic acid. The swelling capacities of the SCB/MIO-NCPs and WTP/MIO-NCPs were 155.0% and 159.5%, respectively, which were much higher than the swelling efficiencies of cellulose-SCB (58.3%) and cellulose-WTP (61.6%). The order of metronidazole drug loading after 3 days was: cellulose-SCB < cellulose-WTP < MIO-NPs < SCB/MIO-NCPs < WTP/MIO-NCPs, whereas the sequence of the drug-releasing rate after 240 min was: WTP/MIO-NCPs < SCB/MIO-NCPs < MIO-NPs < cellulose-WTP < cellulose-SCB. Overall, the results of this study showed that the incorporation of MIO-NPs in the cellulose matrix increased the swelling capacity, drug-loading capacity, and drug-releasing time. Therefore, cellulose/MIO-NCPs obtained from waste materials such as SCB and WTP can be used as a potential vehicle for medical applications, especially in a metronidazole drug delivery system. [ABSTRACT FROM AUTHOR]
- Published
- 2023
- Full Text
- View/download PDF
18. Ultralong Hydroxyapatite Nanowires-Based Paper Co-Loaded with Silver Nanoparticles and Antibiotic for Long-Term Antibacterial Benefit
- Author
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Ri-Long Yang, Ying-Jie Zhu, Yong-Gang Zhang, Fei-Fei Chen, Zhi-Chao Xiong, and Zi-Yue Yang
- Subjects
Silver ,Materials science ,Aqueous solution ,Biocompatibility ,Nanowires ,Reducing agent ,Nanowire ,Metal Nanoparticles ,Biomaterial ,Nanotechnology ,Microbial Sensitivity Tests ,02 engineering and technology ,010402 general chemistry ,021001 nanoscience & nanotechnology ,01 natural sciences ,Silver nanoparticle ,Anti-Bacterial Agents ,0104 chemical sciences ,Durapatite ,Specific surface area ,Drug delivery ,General Materials Science ,0210 nano-technology ,Nuclear chemistry - Abstract
Hydroxyapatite is a kind of biocompatible, environmentally friendly, and versatile inorganic biomaterial. Herein, the preparation of ultralong hydroxyapatite nanowires (HAPNWs)-based antibacterial paper co-loaded with silver nanoparticles (AgNPs) and antibiotic is reported. HAPNWs are used to prepare AgNPs in situ using an aqueous solution containing AgNO3 under the sunlight without added reducing agent at room temperature. Subsequently, ciprofloxacin (CIP) as an antibiotic is loaded on the HAPNWs@AgNPs. The resultant HAPNWs@AgNPs-CIP paper possesses several unique properties, including high flexibility, high Brunauer–Emmett–Teller (BET) specific surface area (47.9 m2 g–1), high drug loading capacity (447.4 mg g–1), good biocompatibility, sustained and pH-responsive drug release behavior (5.40–6.75% of Ag+ ions and 37.7–76.4% of CIP molecules at pH values of 7.4–4.5 at day 8, respectively), and reusable recycling. In the antibacterial tests against Escherichia coli and Staphylococcus aureus, the HAPNWs@Ag...
- Published
- 2017
19. Instantaneous Intraoral Dispersible Rice Paper Films (IDFs): A Novel Natural Drug Delivery System
- Author
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Danckwerts Pm and Eliphaz Mukasa
- Subjects
chemistry.chemical_compound ,First pass effect ,Chromatography ,chemistry ,Drug delivery ,Curcumin ,Cmax ,Permeation ,Resveratrol ,Folding endurance ,Bioavailability - Abstract
At present, pharmaceutical researchers are focusing on instantaneous intraoral dispersible technologies as novel drug delivery systems because; they have outstanding advantages over the traditional oral and parenteral routes of drug administration. Some essential natural drugs have low oral bioavailability due to extensive first pass metabolism and pre systemic degradation in the gastrointestinal tract. Now, a cheap rice paper Intraoral Dispersible Film (IDF) has been developed. In this study, formulation was optimized using the experimental factorial design. The IDFs were loaded with model, natural, anti-cancer drugs, Resveratrol and Curcumin with low oral bioavailability. They were evaluated for thickness, folding endurance, swelling behaviour, among others. These related to their drug release properties. Permeation was evaluated using the pig mucosal membrane mounted on a Franz diffusion cell. Taste testing was done to determine acceptability using a taste panel. Sixteen formulations showed variations in their profiles. Formulation 16 proved optimal. The dissolution rate at steady state concentrations of Resveratrol was 29 mg per second and the Permeability coefficient was 389 mg/sec.cm2. Curcumin dissolution rate at steady state concentrations was 0.25 mg per second and the Permeability coefficient was 42.71 mg/sec.cm2. Resveratrol permeability rate was 0.42 mg/sec. And that of Curcumin was 0.14 mg/sec. Resveratrol Flux was 0.21 mg/sec./cm2. Curcumin Flux was 0.14 mg/sec. / cm2. Drug entrapment was 80% for both molecules. The 20 mg of Resveratrol and Curcumin dissolved in 47.6 sec. and 71.4 sec. respectively. In this study, after permeation, a concentration of 6.73 mg/ml of Resveratrol and 0.061 mg/ml of Curcumin were detected after 2 hours of the experiment on administering only 20 mg of each of the drugs suggesting that Curcumin is 100 times less permeable than Resveratrol. The release profile was a burst release. On contrast, Curcumin oral dose of 2 g/kg to rats yielded 1.35 ± 0.23 μg/ml in 0.83 hours and in humans, given the same dose yielded either undetectable or extremely low (0.006 ± 0.005 μg/ml after 1 hour in blood. Two separate monoglucuronide metabolites yielded a Cmax of ~7.5 μm following a single 5.0 g oral dosage of Resveratrol. The key finding was, ex vivo release profiles of the optimized formulation revealed first order release and later zero order. Therefore, it is evident that rice paper IDF could efficiently deliver natural drugs into the systemic circulation intraorally. However, further studies using human subjects need to be performed to prove increased bioavailability in human subjects (Graphical Abstract).
- Published
- 2018
20. The impact of strut profile geometry and malapposition on the haemodynamics and drug-transport behaviour of arteries treated with drug-eluting stents
- Author
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Vijayaratnam, Pujith Rajaguru Senapathy, Reizes, John Arthur, and Barber, Tracie Jacqueline
- Published
- 2022
- Full Text
- View/download PDF
21. NANOROBOTS AND ITS ADVANCEMENTS IN MEDICAL FIELD.
- Author
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S., ATHEENA MILAGI PANDIAN, MURUGAN, RASHIKA, N., SRI MANOJ KUMAR, and M., SUDHERSON
- Subjects
NANOTECHNOLOGY ,ROBOTICS ,ONCOLOGY ,DRUG delivery systems ,CANCER treatment - Abstract
This paper reviews the potential applications of nanorobots in oncology, cardiology, neurology, respiratory medicine, and nephrology, emphasizing their role in precision drug delivery, cancer therapy, diagnostic procedures, surgical interventions, and disease management. Nanorobots perform particular tasks with great accuracy and precision. They are capable of sensing the environment, transmitting signals to technicians, processing information, and exhibiting intelligence at the nanoscale. They are utilized for treating various illnesses in medical specialties such as cardiology, respiratory, neurology, nephrology, and ophthalmology. Nanorobots can be primarily used in surgery. The material characteristics, such as non-toxicity and biocompatibility, are critical for their safe interaction within the human body. Furthermore, various insertion methods, including intravenous and intra-tumoral injections, are explored. Future advancements are anticipated to enhance multifunctionality, targeting specificity, and integration with artificial intelligence, leading to more autonomous and efficient nanorobots. The integration of nanorobots in medical practice could revolutionize healthcare by offering minimally invasive, highly precise, and personalized treatment options, significantly improving patient outcomes and quality of life. [ABSTRACT FROM AUTHOR]
- Published
- 2024
- Full Text
- View/download PDF
22. Call for Special Issue Papers: Drug Delivery Research
- Author
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Harsh Chauha
- Subjects
World Wide Web ,Computer science ,Drug Discovery ,Drug delivery ,Molecular Medicine - Published
- 2020
23. A review paper on biomimetic calcium phosphate coatings
- Author
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K. de Groot, Q. Hu, D. Wismeijer, D. Wang, Yuelian Liu, X. Lin, Orale Implantologie en Prothetiek (ORM, ACTA), and Oral Implantology
- Subjects
Foreign-body giant cell ,pre-clinical study ,Biocompatibility ,Chemistry ,Calcium phosphate coating ,Biomedical Engineering ,hydroxyapatite ,Medicine (miscellaneous) ,chemistry.chemical_element ,Bioengineering ,biomimetic ,Calcium ,Bone morphogenetic protein 2 ,Article ,osseoconduction ,clinical application ,calcium phosphate coating ,drug delivery ,Drug delivery ,Biophysics ,Animal model ,osseoinduction ,Drug carrier ,Bone regeneration - Abstract
Biomimetic calcium phosphate coatings have been developed for bone regeneration and repair because of their biocompatibility, osteoconductivity, and easy preparation. They can be rendered osteoinductive by incorporating an osteogenic agent, such as bone morphogenetic protein 2 (BMP-2), into the crystalline lattice work in physiological situations. The biomimetic calcium phosphate coating enables a controlled, slow and local release of BMP-2 when it undergoes cell mediated coating degradation induced by multinuclear cells, such as osteoclasts and foreign body giant cells, which mimics a physiologically similar release mode, to achieve sustained ectopic or orthotopic bone formation. Therefore, biomimetic calcium phosphate coatings are considered to be a promising delivery vehicle for osteogenic agents. In this review, we present an overview of biomimetic calcium phosphate coatings including their preparation techniques, physico-chemical properties, potential as drug carrier, and their pre-clinical application both in ectopic and orthotopic animal models. We briefly review some features of hydroxyapatite coatings and their clinical applications to gain insight into the clinical applications of biomimetic calcium phosphate coatings in the near future.
- Published
- 2015
24. Opinion Paper: Microfluidics Technique to Revolutionize the Drug Delivery Field: Current Developments and Applications
- Author
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Hélder A. Santos
- Subjects
Engineering ,business.industry ,Microfluidics ,0206 medical engineering ,Pharmaceutical Science ,Nanotechnology ,02 engineering and technology ,021001 nanoscience & nanotechnology ,020601 biomedical engineering ,Field (computer science) ,Drug Delivery Systems ,Pharmaceutical Preparations ,Drug Design ,Drug delivery ,Humans ,0210 nano-technology ,business - Published
- 2015
25. University of Baghdad Researchers Have Published New Study Findings on Central Nervous System Agents [Combination of FDM 3D Printing and Compressed Tablet for Preparation of Baclofen as Gastro-Floating Drug Delivery System (Conference Paper)#].
- Subjects
DRUG delivery systems ,CENTRAL nervous system ,BACLOFEN ,THREE-dimensional printing ,CONFERENCE papers - Abstract
Keywords for this news article include: University of Baghdad, Pharmaceuticals, Baclofen Therapy, Carboxylic Acids, Drugs and Therapies, Health and Medicine, Drug Delivery Systems, Skeletal Muscle Relaxants, Central Nervous System Agents. Baclofen, Baclofen Therapy, Carboxylic Acids, Central Nervous System Agents, Drug Delivery, Drug Delivery Systems, Drugs and Therapies, Gamma-Aminobutyric Acid, Health and Medicine, Pharmaceuticals, Skeletal Muscle Relaxants, gamma-Aminobutyric Acid Keywords: Baclofen; Baclofen Therapy; Carboxylic Acids; Central Nervous System Agents; Drug Delivery; Drug Delivery Systems; Drugs and Therapies; Gamma-Aminobutyric Acid; Health and Medicine; Pharmaceuticals; Skeletal Muscle Relaxants; gamma-Aminobutyric Acid EN Baclofen Baclofen Therapy Carboxylic Acids Central Nervous System Agents Drug Delivery Drug Delivery Systems Drugs and Therapies Gamma-Aminobutyric Acid Health and Medicine Pharmaceuticals Skeletal Muscle Relaxants gamma-Aminobutyric Acid 3088 3088 1 03/23/23 20230317 NES 230317 2023 MAR 17 (NewsRx) -- By a News Reporter-Staff News Editor at Drug Week -- Research findings on central nervous system agents are discussed in a new report. [Extracted from the article]
- Published
- 2023
26. ELEVATING HEALTHCARE: THE SYNERGY OF AI AND BIOSENSORS IN DISEASE MANAGEMENT.
- Author
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ESWARAN, USHAA, ESWARAN, VIVEK, MURALI, KEERTHNA, and ESWARAN, VISHAL
- Subjects
ARTIFICIAL intelligence ,BIOSENSORS ,DISEASE management ,MEDICAL care ,MACHINE learning ,DRUG delivery systems ,ARTIFICIAL neural networks ,COMPUTER vision - Abstract
Biosensors integrated with artificial intelligence (AI) hold immense potential for transforming healthcare through rapid, automated diagnostics and precision therapeutics. This paper reviews the convergence of biosensing and AI towards developing smart biomedical systems. The fundamentals, historical evolution, and classification of biosensors are presented, highlighting key applications across infections, chronic illnesses, and environmental monitoring. Core AI concepts, including machine learning, neural networks, computer vision, and natural language processing, are discussed, along with their implementation to augment biosensor functionality, connectivity, point-of-care adoption, and laboratory automation. Promising research directions and real-world case studies applying AI-integrated biosensors for early diagnosis and drug delivery are discussed. The opportunities and challenges in advancing this synergistic technology are contemplated, underscoring the need for cross-disciplinary collaboration, clinical validation, ethical vigilance and supportive policy environments to successfully translate AI-biosensors into practical healthcare solutions. [ABSTRACT FROM AUTHOR]
- Published
- 2024
- Full Text
- View/download PDF
27. Trends in versatile 2D (sheet/paper-like) nanomaterials for biomedical applications.
- Author
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Kankala, Ranjith Kumar and Xu, Zhi Ping
- Subjects
- *
NANOSTRUCTURED materials , *TISSUE engineering - Published
- 2023
- Full Text
- View/download PDF
28. Opinion Paper: Phytosome: A Fatty Solution for Efficient Formulation of Phytopharmaceuticals
- Author
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Amirhossein Sahebkar and Abolfazl Shakeri
- Subjects
Chemistry, Pharmaceutical ,Drug Compounding ,Phytochemicals ,Biomedical Engineering ,Phospholipid ,Pharmaceutical Science ,02 engineering and technology ,Pharmacology ,03 medical and health sciences ,chemistry.chemical_compound ,0302 clinical medicine ,Drug Delivery Systems ,Phosphatidylcholine ,Animals ,Humans ,Liposome ,Chromatography ,General Medicine ,021001 nanoscience & nanotechnology ,Bioavailability ,Hydrophilic-lipophilic balance ,Phytochemical ,chemistry ,030220 oncology & carcinogenesis ,Drug delivery ,Liposomes ,Delivery system ,0210 nano-technology - Abstract
Bioavailability, drug delivery, phospholipid, phytochemical, phytosome. During the past two decades, it has become well-known that phytomedicines could be successfully employed to treat several types of human diseases. However, low systemic bioavailability is commonly referred to as a major obstacle to achieve the maximum efficacy of phytomedicines in clini-cal practice. This low bioavailability is mainly due to either highly polar and water soluble, or strong lipophilic nature of some phytochemicals, causing hydrophilic lipophilic balance values that hinder complete passage of phytochemical through either unstirred water layer covering brush border or plasma membrane of enterocytes [1]. To overcome these limitations, majoradvances have been made using novel drug delivery systems [2]. Phytosome is a biocompatible and bio-degradable delivery system that is formed through com-plexation –in an stoichiometric ratio-of a phytochemical, or a mixture of phytochemicals, with a phospholipid, mainly phosphatidylcholine or phosphatidylserine, in an aprotic sol-vent [3] Fig. (
- Published
- 2015
29. Lignin for Nano‐ and Microscaled Carrier Systems: Applications, Trends, and Challenges.
- Author
-
Sipponen, Mika Henrikki, Lange, Heiko, Crestini, Claudia, Henn, Alexander, and Österberg, Monika
- Subjects
LIGNINS ,BIOMACROMOLECULES ,PLANT biomass ,PAPER industry - Abstract
To liberate society from its dependence on fossil‐based fuels and materials it is pivotal to explore components of renewable plant biomass in applications that benefit from their intrinsic biodegradability, safety, and sustainability. Lignin, a byproduct of the pulp and paper industry, is a plausible material for carrying various types of cargo in small‐ and large‐scale applications. Herein, possibilities and constraints regarding the physical–chemical properties of the lignin source as well as modifications and processing required to render lignins suitable for the loading and release of pesticides, pharmaceuticals, and biological macromolecules is reviewed. In addition, the technical challenges, regulatory and toxicological aspects, and future research needed to realize some of the promises that nano‐ and microscaled lignin materials hold for a sustainable future are critically discussed. [ABSTRACT FROM AUTHOR]
- Published
- 2019
- Full Text
- View/download PDF
30. Synthesis of Magnetic Iron Oxide-Incorporated Cellulose Composite Particles: An Investigation on Antioxidant Properties and Drug Delivery Applications
- Author
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Arifa Naznin, Palash Kumar Dhar, Sagar Kumar Dutta, Sumon Chakrabarty, Utpal Kumar Karmakar, Pritam Kundu, Muhammad Sarwar Hossain, Hasi Rani Barai, and Md. Rezaul Haque
- Subjects
sugarcane bagasse ,waste tissue paper ,nanocomposites ,antioxidant properties ,drug delivery ,Pharmacy and materia medica ,RS1-441 - Abstract
In recent years, polymer-supported magnetic iron oxide nanoparticles (MIO-NPs) have gained a lot of attention in biomedical and healthcare applications due to their unique magnetic properties, low toxicity, cost-effectiveness, biocompatibility, and biodegradability. In this study, waste tissue papers (WTP) and sugarcane bagasse (SCB) were utilized to prepare magnetic iron oxide (MIO)-incorporated WTP/MIO and SCB/MIO nanocomposite particles (NCPs) based on in situ co-precipitation methods, and they were characterized using advanced spectroscopic techniques. In addition, their anti-oxidant and drug-delivery properties were investigated. Field emission scanning electron microscopy (FESEM) and X-ray diffraction (XRD) analyses revealed that the shapes of the MIO-NPs, SCB/MIO-NCPs, and WTP/MIO-NCPs were agglomerated and irregularly spherical with a crystallite size of 12.38 nm, 10.85 nm, and 11.47 nm, respectively. Vibrational sample magnetometry (VSM) analysis showed that both the NPs and the NCPs were paramagnetic. The free radical scavenging assay ascertained that the WTP/MIO-NCPs, SCB/MIO-NCPs, and MIO-NPs exhibited almost negligible antioxidant activity in comparison to ascorbic acid. The swelling capacities of the SCB/MIO-NCPs and WTP/MIO-NCPs were 155.0% and 159.5%, respectively, which were much higher than the swelling efficiencies of cellulose-SCB (58.3%) and cellulose-WTP (61.6%). The order of metronidazole drug loading after 3 days was: cellulose-SCB < cellulose-WTP < MIO-NPs < SCB/MIO-NCPs < WTP/MIO-NCPs, whereas the sequence of the drug-releasing rate after 240 min was: WTP/MIO-NCPs < SCB/MIO-NCPs < MIO-NPs < cellulose-WTP < cellulose-SCB. Overall, the results of this study showed that the incorporation of MIO-NPs in the cellulose matrix increased the swelling capacity, drug-loading capacity, and drug-releasing time. Therefore, cellulose/MIO-NCPs obtained from waste materials such as SCB and WTP can be used as a potential vehicle for medical applications, especially in a metronidazole drug delivery system.
- Published
- 2023
- Full Text
- View/download PDF
31. Opinion Paper: Modular Drug Delivery Systems for Personalized Oral Dosage Forms
- Author
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Paolo Colombo
- Subjects
Dosage Forms ,0301 basic medicine ,medicine.medical_specialty ,business.industry ,Biomedical Engineering ,Administration, Oral ,Pharmaceutical Science ,General Medicine ,Pharmacology ,Modular design ,030226 pharmacology & pharmacy ,Dosage form ,03 medical and health sciences ,Drug Delivery Systems ,030104 developmental biology ,0302 clinical medicine ,Drug delivery ,medicine ,Humans ,Medical physics ,Precision Medicine ,business - Published
- 2016
32. Improvement of drug delivery micro-circulatory system with a novel pattern of CuO-Cu/blood hybrid nanofluid flow towards a porous stretching sheet
- Author
-
Dinarvand, Saeed, Nademi Rostami , Mohammadreza, Dinarvand, Rassoul, and Pop, Ioan
- Published
- 2019
- Full Text
- View/download PDF
33. Nanoparticles-Based Flexible Wearable Sensors for Health Monitoring Applications
- Author
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Nag, Anindya, Mukhopadhyay, Subhas Chandra, and Kumar, Challa S.S.R., editor
- Published
- 2019
- Full Text
- View/download PDF
34. Laser-Enabled Fabrication Technologies for Low-Cost Flexible/Conformal Cutaneous Wound Interfaces
- Author
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Ochoa, Manuel, Rahimi, Rahim, Ziaie, Babak, Howe, Roger T., Series editor, Ricco, Antonio J., Series editor, Rogers, John A., editor, Ghaffari, Roozbeh, editor, and Kim, Dae-Hyeong, editor
- Published
- 2016
- Full Text
- View/download PDF
35. Nanoparticles as Drug Delivery Vehicles for People with Cystic Fibrosis.
- Author
-
Hourihane, Eoin and Hixon, Katherine R.
- Subjects
METAL nanoparticles ,DRUG carriers ,CYSTIC fibrosis ,POLYETHYLENE glycol ,METALLIC oxides - Abstract
Cystic Fibrosis (CF) is a life-shortening, genetic disease that affects approximately 145,000 people worldwide. CF causes a dehydrated mucus layer in the lungs, leading to damaging infection and inflammation that eventually result in death. Nanoparticles (NPs), drug delivery vehicles intended for inhalation, have become a recent source of interest for treating CF and CF-related conditions, and many formulations have been created thus far. This paper is intended to provide an overview of CF and the effect it has on the lungs, the barriers in using NP drug delivery vehicles for treatment, and three common material class choices for these NP formulations: metals, polymers, and lipids. The materials to be discussed include gold, silver, and iron oxide metallic NPs; polyethylene glycol, chitosan, poly lactic-co-glycolic acid, and alginate polymeric NPs; and lipid-based NPs. The novelty of this review comes from a less specific focus on nanoparticle examples, with the focus instead being on the general theory behind material function, why or how a material might be used, and how it may be preferable to other materials used in treating CF. Finally, this paper ends with a short discussion of the two FDA-approved NPs for treatment of CF-related conditions and a recommendation for the future usage of NPs in people with Cystic Fibrosis (pwCF). [ABSTRACT FROM AUTHOR]
- Published
- 2024
- Full Text
- View/download PDF
36. Letter to the editor of radiotherapy and oncology regarding of the paper "Radiotherapy enhances uptake and efficacy of 90Y-cetuximab: A preclinical trial" by A Dietrich et al.
- Author
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Chen, Jiejian and Liu, Guolong
- Subjects
- *
RADIOTHERAPY , *ONCOLOGY - Published
- 2021
- Full Text
- View/download PDF
37. A Proposed Architecture for Pharmaceutical Supply Chain Based Semantic Blockchain.
- Author
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Ouf, Shimaa
- Subjects
SUPPLY chains ,BLOCKCHAINS ,PATIENT satisfaction ,DRUG counterfeiting ,INTERNET of things ,SEMANTIC Web ,INTERNET security - Abstract
This paper introduces an architecture to improve the pharmaceutical supply chain's security by using the Internet of Things, semantic web, and blockchain. This architecture increases transparency and visibility of drug flows and improves the representation of the increasing amounts of data that have been generated from pharmaceutical supply chain transactions. The pharmaceutical companies have problems dealing with the complexity of their supply chains, which represent the full life cycle of drugs from extracting raw materials, production, distribution, tracking of drugs, and quality assurance to use by patients. They need to create an efficient, effective, transparent, immutable, and secured supply chains to achieve a competitive advantage in a fast-changing market. A proposed architecture which applies the semantic web technology is implemented to enhance the representation capability of the IoT-blockchain based pharmaceutical supply chain data by annotating them with semantically rich languages to conduct formal reasoning, and aggregating data from heterogeneous sources in easy way and an interoperable manner. The proposed architecture integrates IoT, blockchain, and semantic web to help pharmaceutical companies improving their supply chains in transit and storage, improving patient satisfaction, trust through transparency, preventing drug counterfeit and sharing and reusing knowledge related to the pharmaceutical supply chain with other systems. [ABSTRACT FROM AUTHOR]
- Published
- 2021
- Full Text
- View/download PDF
38. Antibiotic-Loaded Nano-Sized Delivery Systems: An Insight into Gentamicin and Vancomycin.
- Author
-
Pisani, Silvia, Tufail, Shafia, Rosalia, Mariella, Dorati, Rossella, Genta, Ida, Chiesa, Enrica, and Conti, Bice
- Subjects
GRAM-negative bacterial diseases ,GRAM-positive bacterial infections ,DRUG delivery systems ,DRUG resistance ,DRUG resistance in bacteria - Abstract
The fight against infectious disease has remained an ever-evolving challenge in the landscape of healthcare. The ability of pathogens to develop resistance against conventional drug treatments has decreased the effectiveness of therapeutic interventions, and antibiotic resistance is recognized as one of the main challenges of our time. The goal of this systematic review paper is to provide insight into the research papers published on innovative nanosized drug delivery systems (DDSs) based on gentamycin and vancomycin and to discuss the opportunity of their repurposing through nano DDS formulations. These two antibiotics are selected because (i) gentamicin is the first-line drug used to treat suspected or confirmed infections caused by Gram-negative bacterial infections and (ii) vancomycin is used to treat serious Gram-positive bacterial infections. Moreover, both antibiotics have severe adverse effects, and one of the purposes of their formulation as nanosized DDSs is to overcome them. The review paper includes an introduction focusing on the challenges of infectious diseases and traditional therapeutic treatments, a brief description of the chemical and pharmacological properties of gentamicin and vancomycin, case studies from the literature on innovative nanosized DDSs as carriers of the two antibiotic drugs, and a discussion of the results found in the literature. [ABSTRACT FROM AUTHOR]
- Published
- 2024
- Full Text
- View/download PDF
39. Advancements in Aerogel Technology for Antimicrobial Therapy: A Review.
- Author
-
Croitoru, George-Alexandru, Pîrvulescu, Diana-Cristina, Niculescu, Adelina-Gabriela, Rădulescu, Marius, Grumezescu, Alexandru Mihai, and Nicolae, Carmen-Larisa
- Subjects
AEROGELS ,DRUG resistance in microorganisms ,ANTI-infective agents ,CAPACITY (Law) ,SURFACE area - Abstract
This paper explores the latest advancements in aerogel technology for antimicrobial therapy, revealing their interesting capacity that could improve the current medical approaches for antimicrobial treatments. Aerogels are attractive matrices because they can have an antimicrobial effect on their own, but they can also provide efficient delivery of antimicrobial compounds. Their interesting properties, such as high porosity, ultra-lightweight, and large surface area, make them suitable for such applications. The fundamentals of aerogels and mechanisms of action are discussed. The paper also highlights aerogels' importance in addressing current pressing challenges related to infection management, like the limited drug delivery alternatives and growing resistance to antimicrobial agents. It also covers the potential applications of aerogels in antimicrobial therapy and their possible limitations. [ABSTRACT FROM AUTHOR]
- Published
- 2024
- Full Text
- View/download PDF
40. A Comprehensive Review of Radiation-Induced Hydrogels: Synthesis, Properties, and Multidimensional Applications.
- Author
-
Ahmed, Md. Shahriar, Islam, Mobinul, Hasan, Md. Kamrul, and Nam, Kyung-Wan
- Subjects
HYDROGELS ,GAMMA rays ,RESEARCH & development ,NANOTECHNOLOGY ,BIOCOMPATIBILITY - Abstract
At the forefront of advanced material technology, radiation-induced hydrogels present a promising avenue for innovation across various sectors, utilizing gamma radiation, electron beam radiation, and UV radiation. Through the unique synthesis process involving radiation exposure, these hydrogels exhibit exceptional properties that make them highly versatile and valuable for a multitude of applications. This paper focuses on the intricacies of the synthesis methods employed in creating these radiation-induced hydrogels, shedding light on their structural characteristics and functional benefits. In particular, the paper analyzes the diverse utility of these hydrogels in biomedicine and agriculture, showcasing their potential for applications such as targeted drug delivery, injury recovery, and even environmental engineering solutions. By analyzing current research trends and highlighting potential future directions, this review aims to underscore the transformative impact that radiation-induced hydrogels could have on various industries and the advancement of biomedical and agricultural practices. [ABSTRACT FROM AUTHOR]
- Published
- 2024
- Full Text
- View/download PDF
41. Applications and challenges of low temperature plasma in pharmaceutical field
- Author
-
Xili Wu, Lingge Gao, and Xing-Min Shi
- Subjects
Plasma-activated liquids ,Drug delivery system ,Combined use ,Pharmaceutical Science ,Pharmacy ,Nanotechnology ,02 engineering and technology ,01 natural sciences ,Rapid detection ,Analytical Chemistry ,Drug Discovery ,Electrochemistry ,Spectroscopy ,Review Paper ,business.industry ,Chemistry ,lcsh:RM1-950 ,010401 analytical chemistry ,Low temperature plasma ,021001 nanoscience & nanotechnology ,0104 chemical sciences ,Drug quality ,lcsh:Therapeutics. Pharmacology ,Drug activity ,Nanodrug ,Drug delivery ,Related research ,0210 nano-technology ,business - Abstract
Low temperature plasma (LTP) technology has shown an outstanding application value in the pharmaceutical filed in recent ten years. This paper reviews the research advances in LTP, including its effects on enhancing or inhibiting drug activity, its combined use with drugs to treat cancers, its effects on the improvement of drug delivery system, its use in preparation of new inactivated virus vaccines, its use with mass spectrometry for rapid detection of drug quality, and the anti-tumor and sterilization effects of plasma-activated liquids. The paper also analyzes the challenges of LTP in the pharmaceutical filed, hoping to promote related research., Graphical abstract Image 1, Highlights • Low temperature plasma is a young subject. It shows infinite possibilities in many fields. • Paper introduces the research advances on low temperature plasma in pharmaceutical field for the first time. • Paper summarizes the difficulties in the application of low temperature plasma in pharmacy.
- Published
- 2021
42. Ultrasound‐Triggered Delivery of Iproplatin from Microbubble‐Conjugated Liposomes
- Author
-
Eleanor Stride, Joshua Owen, Richard Browning, Nicola J. Farrer, Nia Thomas, Laura K. Marsh, and Louise R. Tear
- Subjects
Organoplatinum Compounds ,chemistry.chemical_element ,Conjugated system ,chemistry.chemical_compound ,Drug Delivery Systems ,cancer ,Humans ,QD1-999 ,Iproplatin ,Liposome ,iproplatin ,Microbubbles ,Full Paper ,ultrasound ,Chemistry ,General Chemistry ,Full Papers ,Prodrug ,drug delivery ,liposome ,Liposomes ,Drug delivery ,Azide ,Platinum ,Nuclear chemistry - Abstract
The PtIV prodrug iproplatin has been actively loaded into liposomes using a calcium acetate gradient, achieving a 3‐fold enhancement in drug concentration compared to passive loading strategies. A strain‐promoted cycloaddition reaction (azide‐ dibenzocyclooctyne) was used to attach iproplatin‐loaded liposomes L(Pt) to gas‐filled microbubbles (M), forming an ultrasound‐responsive drug delivery vehicle [M−L(Pt)]. Ultrasound‐triggered release of iproplatin from the microbubble‐liposome construct was evaluated in cellulo. Breast cancer (MCF‐7) cells treated with both free iproplatin and iproplatin‐loaded liposome−microbubbles [M−L(Pt)] demonstrated an increase in platinum concentration when exposed to ultrasound. No appreciable platinum uptake was observed in MCF‐7 cells following treatment with L(Pt) only or L(Pt)+ultrasound, suggesting that microbubble‐mediated ultrasonic release of platinum‐based drugs from liposomal carriers enables greater control over drug delivery., Actively loading platinum(IV) prodrug iproplatin into liposomes has been achieved using a calcium acetate gradient. Microbubble‐mediated release and accumulation of the prodrug in MCF7 cancer cells following ultrasound treatment demonstrates that this strategy can enable greater control over drug delivery.
- Published
- 2021
43. Anti‐inflammatory ethosomal nanoformulation in combination with iontophoresis in chronic wound healing: An ex vivo study
- Author
-
Akbar Hasanzadeh, Mohammad Karimi Babaahmadi, Mehdi Mehdizadeh, Reza Mombeiny, Shima Tavakol, Peyman Keyhanvar, Mostafa Kazemi, and Ali Abedi
- Subjects
Chronic wound ,Skin Absorption ,Anti-Inflammatory Agents ,Pharmacology ,Administration, Cutaneous ,Hydrocortisone 17-butyrate ,chemistry.chemical_compound ,ethosome ,medicine ,Animals ,Electrical and Electronic Engineering ,Skin ,Transdermal ,Wound Healing ,Iontophoresis ,nanoparticle ,nano‐carrier ,chronic wound healing ,Penetration (firestop) ,Permeation ,Rats ,Electronic, Optical and Magnetic Materials ,Original Research Paper ,chemistry ,Liposomes ,Drug delivery ,transdermal delivery ,medicine.symptom ,Original Research Papers ,TP248.13-248.65 ,Ex vivo ,hydrocortisone 17‐butyrate ,Biotechnology - Abstract
Prescription of anti‐inflammatory drugs may be considered as a promising strategy in chronic wound healing where the inflammatory disturbance has delayed the healing process. It seems that hydrocortisone 17‐butyrate (HB17) would be promising in the form of a nano‐formulation to enhance drug delivery efficacy. In the present study, transdermal delivery of nano‐HB17 in combination with iontophoresis was investigated ex vivo. Ethosomal‐HB17 was synthesised using lecithin, ethanol and cholesterol with a different ratio by hot method. The negative ethosomal‐HB17 particle size was around 244 ± 4.3 nm with high stability of up to 30 days. Additionally, evaluated entrapment efficiency of HB17 in ethosomes by high performance liquid chromatography was 40.6 ± 2.21%. Moreover, the permeation speed and amount of H17B in complete‐thickness rat skin in the presence and absence of iontophoresis showed that the penetration of free H17B and ethosomal‐H17B formulations were zero and 7.98 μg/cm2 in 120 min, respectively. Whereas in the case of applying iontophoresis, permeation amount obtained was zero and 19.69 μg/cm2 in 30 min in free H17B and ethosomal‐H17B formulations, respectively. It has been concluded that transdermal delivery of ethosomal‐H17B is an effective strategy to enhance drug delivery and it will be improved when it is combined with iontophoresis.
- Published
- 2021
44. Potential Use of DMSA‐Containing Iron Oxide Nanoparticles as Magnetic Vehicles against the COVID‐19 Disease
- Author
-
Carlos E. de Castro, Elisama S. Martins, Paula S. Haddad, Camila Chagas, Tatiane N. Britos, Ariane Espindola, Fernando Luiz Affonso Fonseca, and Emerson Barbosa
- Subjects
iron oxide ,Materials science ,Full Paper ,Iron oxide ,Nanoparticle ,COVID-19 ,General Chemistry ,Full Papers ,chemistry.chemical_compound ,biocompatibility ,chemistry ,Dynamic light scattering ,Transmission electron microscopy ,drug delivery ,Magnetic nanoparticles ,nanoparticles ,Materials Science inc. Nanomaterials & Polymers ,Iron oxide nanoparticles ,Magnetite ,Superparamagnetism ,Nuclear chemistry - Abstract
Iron oxide magnetic nanoparticles have been employed as potential vehicles for a large number of biomedical applications, such as drug delivery. This article describes the synthesis, characterization and in vitro cytotoxic in COVID‐19 cells evaluation of DMSA superparamagnetic iron oxide magnetic nanoparticles. Magnetite (Fe3O4) nanoparticles were synthesized by co‐precipitation of iron salts and coated with meso‐2,3‐dimercaptosuccinic acid (DMSA) molecule. Structural and morphological characterizations were performed by X‐ray diffraction (XRD), Fourier transformed infrared (FT‐IR), magnetic measurements (SQUID), transmission electron microscopy (TEM), and dynamic light scattering (DLS). Our results demonstrate that the nanoparticles have a mean diameter of 12 nm in the solid‐state and are superparamagnetic at room temperature. There is no toxicity of SPIONS‐DMSA under the cells of patients with COVID‐19. Taken together the results show that DMSA‐ Fe3O4 are good candidates as nanocarriers in the alternative treatment of studied cells., Superparamagnetic iron oxide magnetic nanoparticles (SPIONs) have been proposed for an increasing number of biomedical applications, such as drug delivery. Thiol groups on the surface of DMSA‐coated nanoparticles can be promising candidates to combat the disease COVID‐19 treatment.
- Published
- 2021
45. One‐pot synthesis chlorin e6 nano‐precipitation for colorectal cancer treatment Ce6 NPs for colorectal cancer treatment
- Author
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Yujie Wang, Min Zhang, Zhongxing Miao, Shengjie Li, and Meng Xu
- Subjects
Drug ,Porphyrins ,Biocompatibility ,Colorectal cancer ,medicine.medical_treatment ,media_common.quotation_subject ,One-pot synthesis ,Photodynamic therapy ,Cell Line, Tumor ,medicine ,Humans ,Electrical and Electronic Engineering ,media_common ,chemistry.chemical_classification ,Reactive oxygen species ,Photosensitizing Agents ,Chlorophyllides ,Precipitation (chemistry) ,technology, industry, and agriculture ,medicine.disease ,Combinatorial chemistry ,Electronic, Optical and Magnetic Materials ,Original Research Paper ,chemistry ,Photochemotherapy ,Drug delivery ,Nanoparticles ,Colorectal Neoplasms ,Original Research Papers ,TP248.13-248.65 ,Biotechnology - Abstract
The drug nanoparticles free of additional carriers hold great promise in drug delivery and are suitable for the therapy of cancers. Herein, we developed a one‐pot method to prepare chlorin e6 (Ce6) nano‐precipitations (Ce6 NPs) for effective photodynamic therapy of colorectal cancer. The drug loading of Ce6 NPs was around 81% and showed acceptable stability, high biocompatibility as well as effective reactive oxygen species (ROS) generation capability. As a result, the Ce6 NPs can produce significantly elevated ROS upon laser irradiations and achieved better anticancer benefits than free Ce6.
- Published
- 2021
46. Targeting the resolution pathway of inflammation using Ac2–26 peptide-loaded PEGylated lipid nanoparticles for the remission of rheumatoid arthritis
- Author
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Donghao Fan, Qin Wang, Wenlang Liang, Xianyan Qin, Jiyu Fang, and Liming He
- Subjects
Pharmaceutical Science ,Inflammation ,02 engineering and technology ,RM1-950 ,Pharmacology ,010402 general chemistry ,01 natural sciences ,Mediator ,Ac2–26 peptide ,Annexin ,In vivo ,medicine ,Pegylated lipid nanoparticles ,Rheumatoid arthritis ,Autoimmune disease ,business.industry ,021001 nanoscience & nanotechnology ,medicine.disease ,0104 chemical sciences ,Bioavailability ,Original Research Paper ,Pro-resolving therapy ,Drug delivery ,Therapeutics. Pharmacology ,medicine.symptom ,0210 nano-technology ,business - Abstract
Rheumatoid arthritis (RA) is a common autoimmune disease characterized by joint inflammation and immune dysfunction. Although various therapeutic approaches have been utilized for the treatment of RA in clinical applications, the low responsiveness of RA patients and undesired systemic toxicity are still unresolved problems. Targeting the resolution pathway of inflammation with pro-resolving mediators would evoke the protective actions of patient for combating the inflammation. Ac2–26, a 25-amino acid peptide derived from Annexin A (a pro-resolving mediator), has shown good efficacy in the treatment of inflammatory disorders. However, the low bioavailability of Ac2–26 peptides hinders their efficacy in vivo. In this paper, we formed PEGylated lipid nanoparticles (LDNPs) by the co-assembly of l-ascorbyl palmitate (L-AP) and N-(carbonyl methoxypolyethylene glycol-2000)-1,2-distearoyl-sn‑glycero-3-phosphoethanolamine (DSPE-PEG2k) to encapsulate and deliver Ac2–26 peptides to the arthritic rats. They showed good stability and biocompatibility. After being intravenously administrated, Ac2–26 peptide-loaded PEGylated lipid nanoparticles (ADNPs) showed the prolonged in vivo circulation time and enhanced accumulation in inflamed sites. In vivo therapeutic evaluations revealed that ADNPs could attenuate synovial inflammation and improve joint pathology. Therefore, the pro-resolving therapeutic strategy using ADNPs is effective in RA treatment., Graphical abstract The fabrication of ADNPs and their in vivo performances in arthritic rats.Image, graphical abstract
- Published
- 2021
47. A Novel Graphene Quantum Dot‐Based mRNA Delivery Platform
- Author
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Alan Sabirsh, Changhong Zhao, Johan Liu, Hongbin Lu, Lilei Ye, Xiaoqiu Wu, and Ya Liu
- Subjects
Cell Membrane Permeability ,Cell Survival ,mRNA ,Transfection ,010402 general chemistry ,01 natural sciences ,law.invention ,Cell membrane ,law ,Cell Line, Tumor ,Quantum Dots ,medicine ,Humans ,Polyethyleneimine ,RNA, Messenger ,QD1-999 ,Fluorescent Dyes ,Messenger RNA ,graphene quantum dots ,Full Paper ,010405 organic chemistry ,Chemistry ,Graphene ,Optical Imaging ,RNA ,General Chemistry ,Full Papers ,Graphene quantum dot ,0104 chemical sciences ,medicine.anatomical_structure ,Quantum dot ,hepatocarcinoma ,Drug delivery ,drug delivery ,Biophysics ,Surface modification ,functionalization ,Graphite - Abstract
Abstract: During the last decades, there has been growing interest in using therapeutic messager RNA (mRNA) together with drug delivery systems. Naked, unformulated mRNA is, however, unable to cross the cell membrane and is susceptible to degradation. Here we use graphene quantum dots (GQDs) functionalized with polyethyleneimine (PEI) as a novel mRNA delivery system. Our results show that these modified GQDs can be used to deliver intact and functional mRNA to Huh‐7 hepatocarcinoma cells at low doses and, that the GQDs are not toxic, although cellular toxicity is a problem for these first‐generation modified particles. Functionalized GQDs represent a potentially interesting delivery system that is easy to manufacture, stable and effective., Message delivered! A novel graphene quantum dots based mRNA drug delivery platform was prepared. The results show that these modified GQDs can deliver intact and functional mRNA to Huh‐7 hepatocarcinoma cells at low doses. The transfection efficiency for FGQDs/mRNA complexes was 25 % with a formulation concentration of 4000 ng mRNA/mL, but comparable transfection efficiencies could be achieved at much lower doses if the ratio between carrier and cargo was optimized. This work describes the first steps towards a potentially interesting preparation method for stable and effective mRNA delivery systems.
- Published
- 2021
48. Biodegradable Periodic Mesoporous Organosilica (BPMO) Loaded with Daunorubicin: A Promising Nanoparticle‐Based Anticancer Drug
- Author
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Phan Bach Thang, Kotaro Matsumoto, Soontaree Grace Intasa-Ard, Ngoc Xuan Dat Mai, Albane Birault, Kendall Morrison, Tan Le Hoang Doan, Fuyuhiko Tamanoi, and Hanh Kieu Thi Ta
- Subjects
Surface Properties ,Daunorubicin ,Tumor spheroid and chicken egg tumor models ,Nanoparticle ,01 natural sciences ,Biochemistry ,Rhodamine ,Ovarian tumor ,chemistry.chemical_compound ,Drug Delivery Systems ,Drug Discovery ,Tumor Cells, Cultured ,medicine ,Animals ,Humans ,Organosilicon Compounds ,Tetrasulfide-based nanoparticles ,Particle Size ,General Pharmacology, Toxicology and Pharmaceutics ,health care economics and organizations ,Cell Proliferation ,Ovarian Neoplasms ,Pharmacology ,Drug Carriers ,Antibiotics, Antineoplastic ,Full Paper ,010405 organic chemistry ,Organic Chemistry ,Neoplasms, Experimental ,Full Papers ,Anticancer drug ,humanities ,0104 chemical sciences ,010404 medicinal & biomolecular chemistry ,Mesoporous organosilica ,chemistry ,embryonic structures ,Drug delivery ,Cancer research ,Nanoparticles ,Molecular Medicine ,Female ,Nanocarriers ,Chickens ,Porosity ,Biodegradable periodic mesoporous organosilica ,medicine.drug - Abstract
Biodegradable periodic mesoporous organosilica (BPMO) nanoparticles have emerged as a promising type of nanocarrier for drug delivery, given the biodegradable feature is advantageous for clinical translation. In this paper, we report synthesis and characterization of daunorubicin (DNR) loaded BPMO. DNR was loaded onto rhodamine B‐labeled BPMO that contain tetrasulfide bonds. Tumor spheroids and chicken egg tumor models were used to characterize the activity in biological settings. In the first experiment we examined the uptake of BPMO into tumor spheroids prepared from ovarian cancer cells. BPMO were efficiently taken up into tumor spheroids and inhibited their growth. In the chicken egg tumor model, intravenous injection of DNR‐loaded BPMO led to the elimination of ovarian tumor. Lack of adverse effect on organs such as lung appears to be due to excellent tumor accumulation of BPMO. Thus, DNR‐loaded BPMO represents a promising nanodrug compared with free DNR currently used in cancer therapy. OK, Rhodamine B‐labelled biodegradable periodic mesoporous organosilica (BPMO) containing tetrasulfide units were investigated by tumor spheroid and chicken egg models. These models are affordable, time‐saving and easy to scale up approaches for the evaluation of drug delivery systems such as BPMO nanoparticles. The results show excellent tumor accumulation of BMPO and dramatic tumor inhibition in the presence of daunorubicin‐loaded BPMO.
- Published
- 2020
49. Lamivudine‐conjugated and efavirenz‐loaded G2 dendrimers: Novel anti‐retroviral nano drug delivery systems
- Author
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Pooneh Rahimi, Kazem Parivar, Esmaeel Mohammadi Pargoo, Mohammad Reza Aghasadeghi, Mehdi Shafiee Ardestani, and Mehri Nikbin
- Subjects
Cyclopropanes ,Dendrimers ,Efavirenz ,Cell ,Pharmacology ,Conjugated system ,chemistry.chemical_compound ,Drug Delivery Systems ,In vivo ,Dendrimer ,medicine ,Humans ,Electrical and Electronic Engineering ,Chemistry ,Lamivudine ,Electronic, Optical and Magnetic Materials ,Benzoxazines ,Original Research Paper ,medicine.anatomical_structure ,HEK293 Cells ,Alkynes ,Drug delivery ,Antiretroviral medication ,Original Research Papers ,TP248.13-248.65 ,medicine.drug ,Biotechnology - Abstract
Infection with human immunodeficiency virus (HIV)‐1 causes immunological disorders and death worldwide which needs to be further assisted by novel anti‐retroviral drug delivery systems. Consequently, finding newer anti‐retroviral pharmaceuticals by using biocompatible, biodegradable nanomaterials comprising a nanoparticle as core and a therapeutic agent is of high global interest. In this experiment, a second generation of a negatively charged nano‐biopolymer linear globular G2 dendrimer was carefully conjugated and loaded with well‐known anti‐HIV drugs lamivudine and efavirenz, respectively. They were characterised by a variety of analytical methods such as Zetasizer, Fourier‐transform infrared spectroscopy, elemental analysis and liquid chromatography‐mass spectroscopy. Additionally, conjugated lamivudine and loaded efazirenz with globular PEGylated G2 dendrimer were tested on an HEK293 T cell infected by single‐cycle replicable HIV‐1 virion and evaluated using XTT test and HIV‐1 P24 protein load. The results showed that lamivudine‐conjugated G2 significantly decreased retroviral activity without any cell toxicity. This effect was more or less observed by efavirenz‐loaded G2. These nano‐constructs are strongly suggested for further in vivo anti‐HIV assays.
- Published
- 2021
50. Comparative pharmacokinetic evaluation of nanoparticle-based vs. conventional pharmaceuticals containing statins in attenuating dyslipidaemia
- Author
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Cordina, Jacob, Ahmad, Isha, Nath, Rohan, Abdul Rahim, Bahara, Van, Andrew, Al-Zuhairi, Dalya, Williams, Kylie, Pont, Lisa, Catanzariti, Rachelle, Mehndiratta, Samir, Valdivia-Olivares, Rayen Yanara, De Rubis, Gabriele, and Dua, Kamal
- Published
- 2024
- Full Text
- View/download PDF
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