Studium metalothioneinem modifikovaného provrchu elektrody v přítomnosti těžkých kovů-biosenzor

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F62156489%3A43210%2F05%3A00000273" target="_blank" >RIV/62156489:43210/05:00000273 - isvavai.cz</a>

Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Study of metallothionein modified electrode surface behaviour in the presence of heavy metal ions - biosensor

Popis výsledku v původním jazyce

An increasing concentration of heavy metals in the environment is a serious problem for human and animal health protection and production of foodstuffs in many countries around the world. The aim of this paper was to suggest a new heavy metal biosensor based on interaction of metals (cadmium and zinc) with metallothionein, which belongs to group of intracellular, high molecular and cysteine-rich proteins binding heavy metals, using adsorptive transfer stripping (AdTS) differential pulse voltammetry (DPV). Primarily, we studied the electrochemical behaviour of MT on the surface of hanging mercury drop electrode by AdTS DPV. Perfect coverage of the electrode surface -- forming of the surface assembled monolayer -- was probably reached at time about 240 sfor 10 mM protein concentration. The detection limits of the selected heavy metals (cadmium and zinc), which were analysed in the presence of the basic electrolyte -- 0.5 M NaCl (pH 6.4), were 250 fmole and 350 fmole in 5 ml drop, respec

Název v anglickém jazyce

Study of metallothionein modified electrode surface behaviour in the presence of heavy metal ions - biosensor

Popis výsledku anglicky

An increasing concentration of heavy metals in the environment is a serious problem for human and animal health protection and production of foodstuffs in many countries around the world. The aim of this paper was to suggest a new heavy metal biosensor based on interaction of metals (cadmium and zinc) with metallothionein, which belongs to group of intracellular, high molecular and cysteine-rich proteins binding heavy metals, using adsorptive transfer stripping (AdTS) differential pulse voltammetry (DPV). Primarily, we studied the electrochemical behaviour of MT on the surface of hanging mercury drop electrode by AdTS DPV. Perfect coverage of the electrode surface -- forming of the surface assembled monolayer -- was probably reached at time about 240 sfor 10 mM protein concentration. The detection limits of the selected heavy metals (cadmium and zinc), which were analysed in the presence of the basic electrolyte -- 0.5 M NaCl (pH 6.4), were 250 fmole and 350 fmole in 5 ml drop, respec

Druh

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

CEP obor

CE - Biochemie

OECD FORD obor

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Projekt

<a href="/cs/project/GP525%2F04%2FP132" target="_blank" >GP525/04/P132: Studium obranných mechanismů rostlin při stresu způsobeném těžkými kovy</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2005

Kód důvěrnosti údajů

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

Název periodika

Electroanalysis

ISSN

1040-0397

e-ISSN

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Svazek periodika

17

Číslo periodika v rámci svazku

18

Stát vydavatele periodika

DE - Spolková republika Německo

Počet stran výsledku

9

Strana od-do

1649-1657

Kód UT WoS článku

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EID výsledku v databázi Scopus

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