Chitosan catalyzes hydrogen evolution at mercury electrodes

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68081707%3A_____%2F14%3A00431759" target="_blank" >RIV/68081707:_____/14:00431759 - isvavai.cz</a>

Výsledek na webu

<a href="http://dx.doi.org/10.1016/j.elecom.2014.04.015" target="_blank" >http://dx.doi.org/10.1016/j.elecom.2014.04.015</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.elecom.2014.04.015" target="_blank" >10.1016/j.elecom.2014.04.015</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Chitosan catalyzes hydrogen evolution at mercury electrodes

Popis výsledku v původním jazyce

In recent decades chitosan has attracted great attention as biodegradable biomaterial with interesting properties, making chitosan useful in biomedicine and various fields of practical life. Chitosan was generally considered as an electrochemically inactive polysaccharide. Here we show that chitosan (containing glucosamine residues) produced voltammetric and chronopotentiometric reduction peaks at mercury and solid amalgam electrodes in a wide pH range. These peaks strongly increased with the buffer concentration and with decreasing pH and were assigned to the catalytic hydrogen evolution reaction. Under the same conditions chitin oligomers (containing N-acetylated glucosamines) displayed no significant electroactivity. Polyanionic polymers, such as DNA and hyaluronic acid, formed multilayers with the adsorbed chitosan. (C) 2014 Elsevier B.V. All rights reserved.

Název v anglickém jazyce

Chitosan catalyzes hydrogen evolution at mercury electrodes

Popis výsledku anglicky

In recent decades chitosan has attracted great attention as biodegradable biomaterial with interesting properties, making chitosan useful in biomedicine and various fields of practical life. Chitosan was generally considered as an electrochemically inactive polysaccharide. Here we show that chitosan (containing glucosamine residues) produced voltammetric and chronopotentiometric reduction peaks at mercury and solid amalgam electrodes in a wide pH range. These peaks strongly increased with the buffer concentration and with decreasing pH and were assigned to the catalytic hydrogen evolution reaction. Under the same conditions chitin oligomers (containing N-acetylated glucosamines) displayed no significant electroactivity. Polyanionic polymers, such as DNA and hyaluronic acid, formed multilayers with the adsorbed chitosan. (C) 2014 Elsevier B.V. All rights reserved.

Druh

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

CEP obor

BO - Biofyzika

OECD FORD obor

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Projekt

<a href="/cs/project/GAP301%2F11%2F2055" target="_blank" >GAP301/11/2055: Nové metody analýzy bílkovin a jejich glykosylace v rakovině - kombinace elektrochemie, mikrofludických biosenzorů a hmotnostní spektrometrie.</a><br>

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2014

Kód důvěrnosti údajů

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

Název periodika

Electrochemistry Communications

ISSN

1388-2481

e-ISSN

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Svazek periodika

44

Číslo periodika v rámci svazku

JUL2014

Stát vydavatele periodika

NL - Nizozemsko

Počet stran výsledku

4

Strana od-do

59-62

Kód UT WoS článku

000337997400016

EID výsledku v databázi Scopus

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