Optical detection of -cyhalothrin by core-shell fluorescent molecularly imprinted polymers in Chinese spirits

	Optical detection of -cyhalothrin by core-shell fluorescent molecularly imprinted polymers in Chinese spirits
	Wang, J.; L. Gao; D. Han; J. Pan; H. Qiu; H. Li; X. Wei; J. Dai; J. Yang; H. Yao and Y. Yan
	2015
发表期刊	Journal of Agricultural and Food Chemistry
卷号	63 期号:9
摘要	In this study, fluorescent molecularly imprinted polymers (FMIPs), which were for the selective recognition and fluorescence detection of -cyhalothrin (LC), were synthesized via fluorescein 5(6)-isothiocyanate (FITC) and 3-aminopropyltriethoxysilane (APTS)/SiO2 particles. The SiO2@FITC-APTS@MIPs were characterized by Fourier transform infrared (FT-IR), UV-vis spectrophotometer (UV-vis), fluorescence spectrophotometer, thermogravimetric analysis (TGA), confocal laser scanning microscope (CLSM), scanning electron microscopy (SEM), and transmission electron microscopy (TEM). The as-synthesized SiO2@FITC-APTS@MIPs with an imprinted polymer film (thickness was about 100 nm) was demonstrated to be spherically shaped and had good monodispersity, high fluorescence intensity, and good selective recognition. Using fluorescence quenching as the detection tool, the largest fluorescence quenching efficiency (F0/F - 1) of SiO2@FITC-APTS@MIPs is close to 2.5 when the concentration of the LC is 1.0 M L-1. In addition, a linear relationship (F0/F - 1= 0.0162C + 0.0272) could be obtained covering a wide concentration range of 0-60 nM L-1 with a correlation coefficient of 0.9968 described by the Stern-Volmer equation. Moreover, the limit of detection (LOD) of the SiO2@FITC-APTS@MIPs was 9.17 nM L-1. The experiment results of practical detection revealed that the SiO2@FITC-APTS@MIPs as an attractive recognition element was satisfactory for the determination of LC in Chinese spirits. Therefore, this study demonstrated the potential of SiO2@FITC-APTS@MIPs for the recognition and detection of LC in food. 2015 American Chemical Society.
文章类型	期刊
收录类别	EI
语种	英语
文献类型	期刊论文
条目标识符	http://ir.ciomp.ac.cn/handle/181722/55908
专题	中科院长春光机所知识产出
推荐引用方式 GB/T 7714	Wang, J.,L. Gao,D. Han,et al. Optical detection of -cyhalothrin by core-shell fluorescent molecularly imprinted polymers in Chinese spirits[J]. Journal of Agricultural and Food Chemistry,2015,63(9).
APA	Wang, J..,L. Gao.,D. Han.,J. Pan.,H. Qiu.,...&H. Yao and Y. Yan.(2015).Optical detection of -cyhalothrin by core-shell fluorescent molecularly imprinted polymers in Chinese spirits.Journal of Agricultural and Food Chemistry,63(9).
MLA	Wang, J.,et al."Optical detection of -cyhalothrin by core-shell fluorescent molecularly imprinted polymers in Chinese spirits".Journal of Agricultural and Food Chemistry 63.9(2015).

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