Results 41 to 50 of about 142,790 (165)
Biomacromolecules, 2008 A water-soluble polymeric photosensitizer that contains naphthyl chromophores and absorbs light in the near UV region was obtained by modification of chitosan. The excitation energy can be used to induce photochemical reactions via energy and electron transfer.
Nowakowska, Maria +2 more
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Molecular dynamics study on the mechanism of polynucleotide encapsulation by chitosan
Scientific Reports, 2017 The safe and effective delivery of therapeutic genes into target cell interiors is of great importance in gene therapy. Chitosan has been extensively studied as a gene delivery carrier due to its good biocompatibility and biodegradability.
Jia-Wei Shen +5 more
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Heliyon, 2023 This work developed an efficient Ni catalyst based on chitosan for selective hydrogenation of acetylene. The Ni catalyst was prepared by the reaction of the chitosan/carbon nanotube composite with NiSO4 solution.
Siye Tang +3 more
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Antimicrobial properties of chitosan solutions, chitosan films and gelatin-chitosan films
Polimery, 2015 The antimicrobial properties of chitosan solutions and films against selected bacteria and the effect of chitosan incorporation into gelatin films were studied. The bactericidal effect of chitosan solutions increased with time and temperature of sample incubation.
Edyta Malinowska-Panczyk +4 more
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Preparation and Optimization of Labeled Chitosan Nanoparticles and Evaluation of their Release from Transdermal Drug Delivery System [PDF]
علوم و تکنولوژی پلیمر, 2015 Biocompatible nanoparticles are widely used in biomedical engineering. In this study, chitosan nanoparticles were prepared using ionic gelation method in view of two determining factors namely method of adding chitosan into the tripolyphosphate (TPP ...
Mohsen Sadeghi +2 more
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Evaluation of chitosan based vaginal bioadhesive gel formulations for antifungal drugs
Acta Pharmaceutica, 2014 The aim of the present study was to evaluate chitosan as a vaginal mucoadhesive gel base for econazole nitrate and miconazole nitrate. To this aim, different types of chitosan with different molecular masses and viscosity properties [low molecular mass ...
Şenyiğit Zeynep Ay +5 more
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Molecules, 2017 Chemical modification of chitosan is increasingly studied for its potential of providing new applications of chitosan. Here, a group of novel chitosan quaternary ammonium derivatives containing pyridine or amino-pyridine were designed and successfully ...
Qing Li +4 more
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Synthesis and characterization of chitosan ethers: Hydroxypropyl chitosan and Hydroxyethyl chitosan
MANAS Journal of EngineeringThe hydroxypropyl chitosan (HPCH) and hydroxyethyl chitosan (HECH) are multifunctional chitosan derivatives with biocompatible and biodegradable properties. Due to their hydroxypropyl and hydroxethyl groups, they have water solubility, moisture retention, and gelling properties. In this study, the chitosan derivatives HPCH and HECH were obtained in two
Nuran Çelikçi +3 more
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Chitin and Chitosan. Part II. Applications of chitosan
Polimery, 2002 A review covering 131 refs. shows the applications of chitosan,i.e., in water treatment, pulp and paper, medical and pharmaceutical materials, cosmetics, biotechnology, agriculture, food and feed additives, textile and membranes. Attention was focused on use of chitosan in papermaking.
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Environmental Applications of Chitosan Derivatives and Chitosan Composites
PolymersChitosan, a naturally abundant and biodegradable biopolymer derived from chitin found in crustacean shells, has emerged as a promising material for addressing environmental challenges. Its reactive amino and hydroxyl groups enable diverse interaction mechanisms.
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