MIPdatabase
Authors: Wei X, Meng MJ, Song ZL, Gao L, Li HJ, Dai JD, Zhou ZP, Li CX, Pan JM, Yu P, Yan YS
Article Title: Synthesis of molecularly imprinted silica nanospheres embedded mercaptosuccinic acid-coated CdTe quantum dots for selective recognition of λ-cyhalothrin.
Publication date: 2014
Journal: Journal of Luminescence
Volume: 153
Page numbers: 326-332.
DOI: 10.1016/j.jlumin.2014.03.055
Alternative URL: http://www.sciencedirect.com/science/article/pii/S0022231314002026
Abstract: In this study, a simple procedure for the determination of λ-cyhalothrin was reported. CdTe quantum dots (QDs) capped by molecularly imprinted polymers (MIPs) were prepared and characterized by spectrofluorometer, Fourier transform infrared spectroscopy (FTIR), transmission electron microscope (TEM) and scanning electron microscope (SEM). Mercaptosuccinic acid (MSA) was chosen as a stabilizer for CdTe QDs synthesis. The MSA stabilizer which comprises both thioglycolic acid (TGA)-like and 3-mercaptopropionic acid (MPA)-like moieties could accelerate the whole growth process of CdTe QDs comparing with TGA-like or MPA-like stabilizer. Meanwhile, the spectrofluorometer was used to evaluate the optical stability, effect of pH, and selective and sensitive determination of λ-cyhalothrin (LC). Moreover, LC could quench the fluorescence of the molecularly imprinted silica nanospheres (CdTe@SiO2@MIPs) in a concentration-dependent manner, which was best described by a Stern-Volmer-type equation
Template and target information: λ-cyhalothrin, LC
Author keywords: MSA-coated CdTe QDs, fluorescence, Molecularly imprinted polymers, λ-Cyhalothrin, selective recognition
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