Electrogenerated Chemiluminescence of Au Nanoclusters for the Detection of Dopamine

Electrogenerated chemiluminescence (ECL) emission was observed from the water-soluble, bovine serum albumin (BSA)-stabilized Au nanoclusters for the first time. The possible ECL mechanism was discussed according to the presented results and ascribed to the effective electron transfer from the conduc...

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Bibliographic Details
Published in:Analytical chemistry (Washington) 2011-02, Vol.83 (3), p.661-665
Main Authors: Li, Lingling, Liu, Hongying, Shen, Yuanyuan, Zhang, Jianrong, Zhu, Jun-Jie
Format: Article
Language:English
Subjects:
Analytical chemistry
Aqueous solutions
Biological and medical sciences
Biosensors
Biotechnology
Chemistry
Dopamine - analysis
Electron transfer
Electrons
Emissions
Exact sciences and technology
Fundamental and applied biological sciences. Psychology
General, instrumentation
Gold
Gold - chemistry
Luminescence
Luminescent Measurements - methods
Methods. Procedures. Technologies
Nanostructures - chemistry
Neurotransmitters
Various methods and equipments
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Summary:Electrogenerated chemiluminescence (ECL) emission was observed from the water-soluble, bovine serum albumin (BSA)-stabilized Au nanoclusters for the first time. The possible ECL mechanism was discussed according to the presented results and ascribed to the effective electron transfer from the conduction-band of excited indium tin oxide (ITO) to Au nanoclusters (NCs). A simple label-free method for the detection of dopamine has been developed based on the Au NCs ECL in aqueous media. The Au NCs could be an effective candidate for new types of ECL biosensors in the future due to their fascinating features, such as good water solubility, low toxicity, ease of labeling, and excellent stability.
ISSN:0003-2700
1520-6882
DOI:10.1021/ac102623r