نتایج جستجو برای: chitosan ag nanocomposite

تعداد نتایج: 73258  

Journal: :international journal of nanoscience and nanotechnology 2011
e. pipelzadeh m. valizadeh derakhshan a. a. babaluo m. haghighi a. tavakoli

the effect of ethanol-water media on the synthesis of ag/tio2 nanocomposite was investigated with 0.05, 0.1 and 0.5 (wt.%) of ag content. ethanol was used as hole-scavenger enhancing the photodecomposition of ag+ ions under illumination of near-uv light. the nanocomposites were further calcined to 300˚c and 400˚c under controlled atmosphere. the synthesized nanocomposites were tested for photoc...

Journal: :Microsurgery 2015
F Gonzalez-Perez S Cobianchi S Geuna C Barwig T Freier E Udina X Navarro

Biosynthetic guides can be an alternative to nerve grafts for reconstructing severely injured peripheral nerves. The aim of this study was to evaluate the regenerative capability of chitosan tubes to bridge critical nerve gaps (15 mm long) in the rat sciatic nerve compared with silicone (SIL) tubes and nerve autografts (AGs). A total of 28 Wistar Hannover rats were randomly distributed into fou...

Farjaminezhad , M, Maham , M*, Nasrollahzadeh , M,

Background & objectives: Nitroanene compounds and toxic dyes are considered major pollutants in sewage of various industries. These synthetic organic compounds are highly toxic and one of the most resistant pollutants in the environment. Developing a simple and effective method to destroy non-biodegradable pollutants into non-hazardous products is one of the major challenges in environmental st...

Journal: :IOP conference series 2021

Abstract Chitosan is a polysaccharides compound derived from nature and has an amine group hydroxyl that gives it unique physicochemical properties, which are polychationic chelating agent. This shows chitosan can be used as stabilizer reducer of Ag nanoparticles. Unlike other studies, was in this study Black Soldier Fly exuviae been through demineralization, deproteination, depigmentation, dea...

Introduction: Nanotechnology is one of great important part of technology. Nanoparticles can be used in different applications for industrial, medical, military and personal use. The objectives of this study were preparation of chitosan –ZnO nanocomposite films via a simple method and investigation of antibacterial activity of them. Methods: Chitosan –ZnO nanocomposites were prep...

2014
Samer Hasan Hussein-Al-Ali Mohamed E. El Zowalaty Aminu Umar Kura Benjamin Geilich Sharida Fakurazi Thomas J. Webster Mohd Zobir Hussein

Nystatin is a tetraene diene polyene antibiotic showing a broad spectrum of antifungal activity. In the present study, we prepared a nystatin nanocomposite (Nyst-CS-MNP) by loading nystatin (Nyst) on chitosan (CS) coated magnetic nanoparticles (MNPs). The magnetic nanocomposites were characterized by X-ray powder diffraction (XRD), Fourier transform infrared spectroscopy (FT-IR), thermogravimet...

Journal: :پژوهش های علوم و صنایع غذایی ایران 0
m. abdollahi m. rezaei g. a. farzi

a bionanocomposite film was developed by nanoclay incorporation to chitosan films, using a solution casting method and the effects of nanoclay concentration (0.5, 1.0, and 3% w/w) on the physical and mechanical properties of the chitosan films were evaluated. moreover, x-ray diffraction (xrd), scanning electron microscopy, and fourier transform infrared spectra (ftir) were used for studying mic...

Journal: :Reactive & functional polymers 2016
Yingying Zheng Jianjun Miao Fuming Zhang Chao Cai Amanda Koh Trevor J Simmons Shaker A Mousa Robert J Linhardt

A functional anticoagulant and anti-bacterial coating for polyethylene (PE) films is described. The stepwise preparation of this nanocomposite surface coating involves O2 plasma etching of PE film, carbodiimide coupling of cysteamine to the etched PE film, binding of Ag to sulfhydryl groups of cysteamine, and assembly of heparin capped AgNPs on the PE film. The nanocomposite film and its compon...

2015
Norshafadzila Mohammad Naim H Abdullah Akrajas Ali Umar Aidil Abdul Hamid Sahbudin Shaari

PANI-Ag-Fe nanocomposite thin films based electrochemical E. coli sensor was developed with thermal annealing. PANI-Ag-Fe nanocomposite thin films were prepared by oxidative polymerization of aniline and the reduction process of Ag-Fe bimetallic compound with the presence of nitric acid and PVA. The films were deposited on glass substrate using spin-coating technique before they were annealed a...

Journal: :Physical chemistry chemical physics : PCCP 2014
Padamadathil K Aneesh Sindhu R Nambiar Talasila P Rao Ayyappanpillai Ajayaghosh

Gold atomic cluster based nanocomposites are important in the field of energy and sensing applications due to their interesting optical, electronic, chemical and catalytic properties. In the present study a chitosan stabilized gold atomic cluster nanocomposite was synthesised by a simple electrochemical technique based on the anodic dissolution of a gold electrode in the presence of a cationic ...

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