نتایج جستجو برای: chitosan nanofibers

تعداد نتایج: 24043  

Journal: :Materials advances 2023

This review article summarises and discusses the recent developments in different biomedical applications of electrospun chitosan nanofibers.

In recent years natural polymers have been widely used in biomedical applications. Application of natural and biocompatible polymers in wound dressing, medical sutures and tissue engineering are extensively growing. Additional properties are provided when metal nanoparticles such as silver and gold are incorporated in to the fibers. However, nowadays nanofibers due to their inherent properties ...

Journal: :journal of paramedical sciences 0
esmaeil biazar department of biomaterials engineering, tonekabon branch, islamic azad university, tonekabon, iran. davood zaeifi proteomics research center, shahid beheshti university of medical sciences, tehran, iran. saeed heidari keshel eye research center, farabi eye hospital, tehran university of medical sciences, tehran, iran sanaz ojani department of biomaterials engineering, tonekabon branch, islamic azad university, tonekabon, iran. arefeh hajiaghaee department of biomaterials engineering, tonekabon branch, islamic azad university, tonekabon, iran. roya safarpour department of biomaterials engineering, tonekabon branch, islamic azad university, tonekabon, iran.

poly vinyl alcohol/chitosan nanofibrous mat were prepared by electrospinning method with suitable pore sizes as potential matrices for soft tissue engineering. the designed scaffolds by electrospinning method evaluated by differentanalyses such morphological, mechanical, and cellular analysis.microscopic results showed diameters of poly vinyl alcohol/chitosan nanofibers were approximately 150 n...

Journal: :Tekstil Ve Konfeksiyon 2023

This study aims to characterize and evaluate polyethylene oxide (PEO) chitosan (CS) nanofibers produced by electrospinning method. Electrospinning solutions were used at three different concentrations (1, 2, 3 wt%) with five PEO/CS mixing ratios (30/70, 40/60, 50/50, 60/40, 100/0). FESEM, XRD FTIR tests applied for characterization of the nanofibers. Antibacterial activity against Staphylococcu...

Journal: :Physical chemistry chemical physics : PCCP 2015
Sang Jin Lee Dong Nyoung Heo Ji Sun Park Seong Keun Kwon Jin Ho Lee Jun Hee Lee Wan Doo Kim Il Keun Kwon Su A Park

The last decade has seen artificial blood vessels composed of natural polymer nanofibers grafted into human bodies to facilitate the recovery of damaged blood vessels. However, electrospun nanofibers (ENs) of biocompatible materials such as chitosan (CTS) suffer from poor mechanical properties. This study describes the design and fabrication of artificial blood vessels composed of a blend of CT...

Journal: :Carbohydrate polymers 2014
Abdelrahman M Abdelgawad Samuel M Hudson Orlando J Rojas

Novel hybrid nanomaterials have been developed for antimicrobial applications. Here we introduce a green route to produce antibacterial nanofiber mats loaded with silver nanoparticles (Ag-NPs, 25 nm diameter) enveloped in chitosan after reduction with glucose. The nanofiber mats were obtained from colloidal dispersions of chitosan-based Ag-NPs blended with polyvinyl alcohol. Nanofibers (150 nm ...

2011
Riccardo A. A. Muzzarelli

Recently developed technology permits to optimize simultaneously surface area, porosity, density, rigidity and surface morphology of chitin-derived materials of biomedical interest. Safe and ecofriendly disassembly of chitin has superseded the dangerous acid hydrolysis and provides higher yields and scaling-up possibilities: the chitosan nanofibrils are finding applications in reinforced bone s...

The antimicrobial activity of a wound dressing is a key factor for preventing and treating wound infection. The current study evaluated the physiochemical properties and antimicrobial activities of semi-IPNs (interpenetrating polymer networks) based on chitosan/polyvinyl alcohol (PVA) films and nanofibers as candidates for wound dressings and investigated the effects of morphologies (nanofibrou...

2016
Mian Wang Amit K. Roy Thomas J. Webster

Chitosan is a cheap resource, which is widely used in biomedical applications due to its biocompatible and antibacterial properties. In this study, composite nanofibrous membranes of chitosan (CS) and poly(vinyl alcohol) (PVA) loaded with antibiotics at different ratios were successfully fabricated by electrospinning. The composite nanofibers were subjected to further analysis by scanning elect...

Journal: :Integrative biology : quantitative biosciences from nano to macro 2016
Mohammad Raoufi Neda Aslankoohi Christine Mollenhauer Heike Boehm Joachim P Spatz Dorothea Brüggemann

Biomedical applications ranging from tissue engineering to drug delivery systems require versatile biomaterials based on the scalable and tunable production of biopolymer nanofibers under physiological conditions. These requirements can be successfully met by a novel extrusion process through nanoporous aluminum oxide templates, which is presented in this study. With this simple method we are a...

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