2023
DOI: 10.1021/acsanm.3c03294
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Fluorescence and Colorimetric Dual-Signal Aptamer Sensor Based on Aptamer-Functionalized Fe3O4 Nanoparticles Decorated with Au and Pt Nanoparticles Combined with Fluorescently Labeled Aptamer Complementary Chain-Functionalized SiO2 Nanoparticles for Detecting the Insecticide Acetamiprid

Sa Dong,
Zixin Zhu,
Qiuyun Shi
et al.

Abstract: Acetamiprid (ACE) is a nicotinic chloride insecticide with certain genotoxicity and cytotoxicity that poses a threat to human health. Therefore, it is necessary to establish a rapid and sensitive method for the detection of ACE in agricultural products. In this study, Au and Pt nanoparticles with enzyme-catalyzing and fluorescence-quenching ability were coated on the surface of Fe 3 O 4 nanoparticles to obtain Fe 3 O 4 −Au/Pt. Simultaneously, SiO 2 nanoparticles were synthesized. Aptamer (Apt)-functionalized F… Show more

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