Gold-Nanoparticle-Based Colorimetric Sensor Array for Discrimination of Organophosphate Pesticides
2016; American Chemical Society; Volume: 88; Issue: 16 Linguagem: Inglês
10.1021/acs.analchem.6b01616
ISSN1520-6882
AutoresNafiseh Fahimi-Kashani, M. Reza Hormozi‐Nezhad,
Tópico(s)Advanced Nanomaterials in Catalysis
ResumoThere is a growing interest in developing high-performance sensors monitoring organophosphate pesticides, primarily due to their broad usage and harmful effects on mammals. In the present study, a colorimetric sensor array consisting of citrate-capped 13 nm gold nanoparticles (AuNPs) has been proposed for the detection and discrimination of several organophosphate pesticides (OPs). The aggregation-induced spectral changes of AuNPs upon OP addition has been analyzed with pattern recognition techniques, including hierarchical cluster analysis (HCA) and linear discriminant analysis (LDA). In addition, the proposed sensor array has the capability to identify individual OPs or mixtures of them in real samples.
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