Antioxidant Polymers by Chitosan Modification

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11160%2F12%3A10124282" target="_blank" >RIV/00216208:11160/12:10124282 - isvavai.cz</a>

Výsledek na webu

<a href="http://onlinelibrary.wiley.com/doi/10.1002/9781118445440.ch5/summary" target="_blank" >http://onlinelibrary.wiley.com/doi/10.1002/9781118445440.ch5/summary</a>

DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Antioxidant Polymers by Chitosan Modification

Popis výsledku v původním jazyce

Oxidative stress induced by free radicals is a major factor in cell damage and is responsible for various kinds of diseases. Naturally abundant, chitosan is a perspective cationic polysaccharide which demonstrates scavenging free radical and antioxidantactivity. Its antioxidant activity and water solubility depends on the molecular weight and degree of deacetylation. Even if the exact mechanism of activity is unknown, it is assumed that an amino group and hydroxyl groups react with unstable free radicals to form more stable macromolecular radicals. Efforts to improve the antioxidant activity of chitosan led to the grafting of natural or synthetic antioxidant molecules on chitosan. Modification of chitosan molecule by carboxymethylation, quaternization, sulphation, sulphonation, and Schiff base preparation brings more active derivatives. The most frequently used antioxidants, like phenolic compounds, gallic acid, caffeic acid, substituted hydroxyanisole, hydroxytoluene, and green tea e

Název v anglickém jazyce

Antioxidant Polymers by Chitosan Modification

Popis výsledku anglicky

Oxidative stress induced by free radicals is a major factor in cell damage and is responsible for various kinds of diseases. Naturally abundant, chitosan is a perspective cationic polysaccharide which demonstrates scavenging free radical and antioxidantactivity. Its antioxidant activity and water solubility depends on the molecular weight and degree of deacetylation. Even if the exact mechanism of activity is unknown, it is assumed that an amino group and hydroxyl groups react with unstable free radicals to form more stable macromolecular radicals. Efforts to improve the antioxidant activity of chitosan led to the grafting of natural or synthetic antioxidant molecules on chitosan. Modification of chitosan molecule by carboxymethylation, quaternization, sulphation, sulphonation, and Schiff base preparation brings more active derivatives. The most frequently used antioxidants, like phenolic compounds, gallic acid, caffeic acid, substituted hydroxyanisole, hydroxytoluene, and green tea e

Druh

C - Kapitola v odborné knize

CEP obor

FR - Farmakologie a lékárnická chemie

OECD FORD obor

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Projekt

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Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2012

Kód důvěrnosti údajů

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

Název knihy nebo sborníku

Antioxidant Polymers : Synthesis, Properties, and Applications

ISBN

978-1-118-20854-0

Počet stran výsledku

14

Strana od-do

115-131

Počet stran knihy

493

Název nakladatele

Wiley

Místo vydání

Hoboken (USA)

Kód UT WoS kapitoly

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