A novel method for the preparation of silver/chitosan--methoxy polyethylene glycol core shell nanoparticles

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216275%3A25310%2F12%3A39894661" target="_blank" >RIV/00216275:25310/12:39894661 - isvavai.cz</a>

Výsledek na webu

<a href="http://dx.doi.org/10.1007/s10924-011-0378-1" target="_blank" >http://dx.doi.org/10.1007/s10924-011-0378-1</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1007/s10924-011-0378-1" target="_blank" >10.1007/s10924-011-0378-1</a>

Jazyk výsledku

angličtina

Název v původním jazyce

A novel method for the preparation of silver/chitosan--methoxy polyethylene glycol core shell nanoparticles

Popis výsledku v původním jazyce

Uniformly sized silver/chitosan--methoxy polyethylene glycol (chitosan--MPEG) core shell nanoparticles with different degree of substitution were synthesized. Thus, -phthaloyl chitosan is reacted with polyethylene glycol monomethyl ether iodide in the presence of silver oxide by the following steps. At first, amino groups of chitosan are protected by fourfold excess of phthalic anhydride. Then -phthaloyl chitosan is reacted with an appropriate amount of monomethyl ether iodide in the presence of silveroxide and lastly -phthaloyl groups are removed to yield silver/chitosan--MPEG core shell nanoparticles. Structure of prepared silver/chitosan--MPEG core shell nanoparticles have been characterized by UV/Vis spectroscopy, transmission electron microscopy(TEM), Fourier transform infrared (FT-IR), X-ray diffraction, and scan electron microscopy (SEM-EDX). Experimental results revealed that the prepared silver core particles had the size 18 +/- A 2 nm. Core shell structure with chitosan--MP

Název v anglickém jazyce

A novel method for the preparation of silver/chitosan--methoxy polyethylene glycol core shell nanoparticles

Popis výsledku anglicky

Uniformly sized silver/chitosan--methoxy polyethylene glycol (chitosan--MPEG) core shell nanoparticles with different degree of substitution were synthesized. Thus, -phthaloyl chitosan is reacted with polyethylene glycol monomethyl ether iodide in the presence of silver oxide by the following steps. At first, amino groups of chitosan are protected by fourfold excess of phthalic anhydride. Then -phthaloyl chitosan is reacted with an appropriate amount of monomethyl ether iodide in the presence of silveroxide and lastly -phthaloyl groups are removed to yield silver/chitosan--MPEG core shell nanoparticles. Structure of prepared silver/chitosan--MPEG core shell nanoparticles have been characterized by UV/Vis spectroscopy, transmission electron microscopy(TEM), Fourier transform infrared (FT-IR), X-ray diffraction, and scan electron microscopy (SEM-EDX). Experimental results revealed that the prepared silver core particles had the size 18 +/- A 2 nm. Core shell structure with chitosan--MP

Druh

J_x - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)

CEP obor

CD - Makromolekulární chemie

OECD FORD obor

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Projekt

—

Návaznosti

Z - Vyzkumny zamer (s odkazem do CEZ)<br>S - Specificky vyzkum na vysokych skolach

Rok uplatnění

2012

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Journal of Polymers and the Environment

ISSN

1566-2543

e-ISSN

—

Svazek periodika

20

Číslo periodika v rámci svazku

2

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

10

Strana od-do

459-468

Kód UT WoS článku

000304147400024

EID výsledku v databázi Scopus

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