نتایج جستجو برای: chitosan nanofibers
تعداد نتایج: 24043 فیلتر نتایج به سال:
This study investigates the antibacterial action of chitosan-based nanofibers (CNFs) obtained by the electrospinning process on the permeability of bacterial membranes. The bactericidal efficiency of CNFs was first determined against Gram-negative Escherichia coli and Salmonella Typhimurium, and Gram-positive Staphylococcus aureus and Listeria innocua bacteria as a baseline. The results strongl...
Abstract A novel nanofiber insert was prepared with a modified electrospinning method to enhance the ocular residence time of ofloxacin (OFX) and provide sustained release pattern by covering hydrophilic polymers, chitosan/polyvinyl alcohol (CS/PVA) nanofibers, hydrophobic polymer, Eudragit RL100 in layers, glutaraldehyde (GA) cross-linking CS-PVA nanofibers for treatment infectious conjunctivi...
Recent advancements in the synthesis, properties, and applications of chitosan as second after cellulose available biopolymer nature were discussed this review. A general overview processing production procedures from to Z was highlighted. Chitosan exists three polymorphic forms which differ degree crystallinity (?, ?, ?). Thus, deacetylation, crystallinity, surface area, molecular mass signifi...
Food packaging systems with a single function of freshness keeping or monitoring may not be able to meet all practical needs. Herein, cellulose nanofibers (CNF)-based labels dual functions fruit and visual were prepared by coaxial 3D printing. CNF-based ink blueberry anthocyanin was used create the shell fibers, exhibiting high formability print fidelity as well sensitive pH-responsiveness for ...
Objective(s): Rapid healing of cutaneous leishmaniasis as one of the most important parasitic diseases leads to the decrease of scars and prevention of a great threat to the looks of the affected people. Today, the use of nano-scaffolds is rapidly increasing in tissue engineering and regenerative medicine with structures similar to the target tissue. Chitosan (CS) is a...
Background and Objective: Several studies have been performed to achieve a scaffold for growing stem cells. The purpose of the study was to provide a biodegradable scaffold of chitosan - poly ethylene oxide (PEO) with the ability for growing, proliferation, un-differentiation and apoptosis of bone marrow stromal cells (BMSCs). Materials and Methods: First, formation of chitosan-PEO nanof...
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