Characterization of gold nanoparticles-modified CDTE quantum dots by scanning electrochemical microscopy

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F62156489%3A43210%2F13%3A43908910" target="_blank" >RIV/62156489:43210/13:43908910 - isvavai.cz</a>

Výsledek na webu

<a href="http://konsys-t.tanger.cz/files/proceedings/14/reports/2197.pdf" target="_blank" >http://konsys-t.tanger.cz/files/proceedings/14/reports/2197.pdf</a>

DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Characterization of gold nanoparticles-modified CDTE quantum dots by scanning electrochemical microscopy

Popis výsledku v původním jazyce

Gold-modified quantum dots (Au-QDs) are semiconductor nanocrystals, which serve as both optical and electrochemical tags. With these markers it is possible to label different types of molecules, which are complicated to detect otherwise. Scanning electrochemical microscope (SECM) is very suitable instrument for detection of surface electrochemical properties. Electrochemical detection of the redox label generates a specific tip current, which intensity depends on the local surface concentration of the redox macromolecules. Binding of various types of surface molecules to the QDs is accompanied by a change of detected current level. SECM provides detail characterization in pseudo 3D imaging with resolution in the order of micro to nanometre, depending on the size of the working electrode. Modification of CdTe quantum dots with gold was performed to enable specific interaction with selected oligonucleotide modified by thiol group. Two ways of synthesis were tested: 1) Conjugation with go

Název v anglickém jazyce

Characterization of gold nanoparticles-modified CDTE quantum dots by scanning electrochemical microscopy

Popis výsledku anglicky

Gold-modified quantum dots (Au-QDs) are semiconductor nanocrystals, which serve as both optical and electrochemical tags. With these markers it is possible to label different types of molecules, which are complicated to detect otherwise. Scanning electrochemical microscope (SECM) is very suitable instrument for detection of surface electrochemical properties. Electrochemical detection of the redox label generates a specific tip current, which intensity depends on the local surface concentration of the redox macromolecules. Binding of various types of surface molecules to the QDs is accompanied by a change of detected current level. SECM provides detail characterization in pseudo 3D imaging with resolution in the order of micro to nanometre, depending on the size of the working electrode. Modification of CdTe quantum dots with gold was performed to enable specific interaction with selected oligonucleotide modified by thiol group. Two ways of synthesis were tested: 1) Conjugation with go

Druh

D - Stať ve sborníku

CEP obor

JJ - Ostatní materiály

OECD FORD obor

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Projekt

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Návaznosti

S - Specificky vyzkum na vysokych skolach

Rok uplatnění

2013

Kód důvěrnosti údajů

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

Název statě ve sborníku

NANOCON 2013: Conference Proceedings

ISBN

978-80-87294-47-5

ISSN

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e-ISSN

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Počet stran výsledku

6

Strana od-do

773-778

Název nakladatele

Tanger Ltd.

Místo vydání

Ostrava

Místo konání akce

Brno

Datum konání akce

16. 10. 2013

Typ akce podle státní příslušnosti

EUR - Evropská akce

Kód UT WoS článku

000352070900138