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

Result code in 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>
Result on the web
<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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Result language
angličtina
Original language name
Characterization of gold nanoparticles-modified CDTE quantum dots by scanning electrochemical microscopy
Original language description
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
Czech name
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Czech description
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Publication year
2013
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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