Detection of cadmium sulphide nanoparticles by using screen-printed electrodes and a handheld device

Arben Merkoçi; Luiz Humberto Marcolino-Junior; Sergio Marín; Orlando Fatibello-Filho; Salvador Alegret

doi:10.1088/0957-4484/18/3/035502

Detection of cadmium sulphide nanoparticles by using screen-printed electrodes and a handheld device

Arben Merkoçi, Luiz Humberto Marcolino-Junior, Sergio Marín, Orlando Fatibello-Filho, Salvador Alegret

Departament de Química

Producció científica: Contribució a revista › Article › Recerca › Avaluat per experts

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A simple method based on screen-printed electrodes and a handheld potentiostatic device is reported for the detection of water soluble CdS quantum dots modified with glutathione. The detection method is based on the stripping of electrochemically reduced cadmium at pH7.0 by using square wave voltammetry. Various parameters that affect the sensitivity of the method are optimized. QD suspension volumes of 20νl and a number of around 2 × 1011 CdS quantum dots have been able to be detected. The proposed method should be of special interest for bioanalytical assays, where CdS quantum dots can be used as electrochemical tracers. © IOP Publishing Ltd.

Idioma original	Anglès
Número d’article	035502
Revista	Nanotechnology
Volum	18
Número	3
DOIs	https://doi.org/10.1088/0957-4484/18/3/035502
Estat de la publicació	Publicada - 24 de gen. 2007

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10.1088/0957-4484/18/3/035502

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title = "Detection of cadmium sulphide nanoparticles by using screen-printed electrodes and a handheld device",

abstract = "A simple method based on screen-printed electrodes and a handheld potentiostatic device is reported for the detection of water soluble CdS quantum dots modified with glutathione. The detection method is based on the stripping of electrochemically reduced cadmium at pH7.0 by using square wave voltammetry. Various parameters that affect the sensitivity of the method are optimized. QD suspension volumes of 20νl and a number of around 2 × 1011 CdS quantum dots have been able to be detected. The proposed method should be of special interest for bioanalytical assays, where CdS quantum dots can be used as electrochemical tracers. {\textcopyright} IOP Publishing Ltd.",

author = "Arben Merko{\c c}i and Marcolino-Junior, {Luiz Humberto} and Sergio Mar{\'i}n and Orlando Fatibello-Filho and Salvador Alegret",

year = "2007",

month = jan,

day = "24",

doi = "10.1088/0957-4484/18/3/035502",

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TY - JOUR

T1 - Detection of cadmium sulphide nanoparticles by using screen-printed electrodes and a handheld device

AU - Merkoçi, Arben

AU - Marcolino-Junior, Luiz Humberto

AU - Marín, Sergio

AU - Fatibello-Filho, Orlando

AU - Alegret, Salvador

PY - 2007/1/24

Y1 - 2007/1/24

N2 - A simple method based on screen-printed electrodes and a handheld potentiostatic device is reported for the detection of water soluble CdS quantum dots modified with glutathione. The detection method is based on the stripping of electrochemically reduced cadmium at pH7.0 by using square wave voltammetry. Various parameters that affect the sensitivity of the method are optimized. QD suspension volumes of 20νl and a number of around 2 × 1011 CdS quantum dots have been able to be detected. The proposed method should be of special interest for bioanalytical assays, where CdS quantum dots can be used as electrochemical tracers. © IOP Publishing Ltd.

AB - A simple method based on screen-printed electrodes and a handheld potentiostatic device is reported for the detection of water soluble CdS quantum dots modified with glutathione. The detection method is based on the stripping of electrochemically reduced cadmium at pH7.0 by using square wave voltammetry. Various parameters that affect the sensitivity of the method are optimized. QD suspension volumes of 20νl and a number of around 2 × 1011 CdS quantum dots have been able to be detected. The proposed method should be of special interest for bioanalytical assays, where CdS quantum dots can be used as electrochemical tracers. © IOP Publishing Ltd.

U2 - 10.1088/0957-4484/18/3/035502

DO - 10.1088/0957-4484/18/3/035502

M3 - Article

SN - 0957-4484

VL - 18

JO - Nanotechnology

JF - Nanotechnology

IS - 3

M1 - 035502

ER -

Detection of cadmium sulphide nanoparticles by using screen-printed electrodes and a handheld device

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