Highly selective molecular recognition and high throughput detection of melamine based on molecularly imprinted sol–gel film

2009 ◽  
Vol 651 (2) ◽  
pp. 209-214 ◽  
Author(s):  
Jinghua Yu ◽  
Congcong Zhang ◽  
Ping Dai ◽  
Shenguang Ge
2011 ◽  
Vol 306-307 ◽  
pp. 663-666 ◽  
Author(s):  
De Jin Zang ◽  
Lei Ge ◽  
Pei Ni Zhao ◽  
Jing Hua Yu ◽  
Jia Dong Huang

One novel highly cross-linked, shape-controllable molecularly imprinted sol-gel film (MISF) with good thermal and chemical stability and three-dimensional network porous structure has been developed. The binding characteristic of the imprinted film to bifenthrin was evaluated by equilibrium binding experiments and imprinting-induced promotion of binding. The MISF was modified into the wells of 96 micro-well plate combined with chemiluminescence (CL) technology to establish the molecular imprinting-chemiluminescence (MI-CL) sensor. The high throughput and high selective detection sensor of bifenthrin was applied in vegetable and food samples with satisfactory results.


2011 ◽  
Vol 306-307 ◽  
pp. 1667-1672 ◽  
Author(s):  
Shen Guang Ge ◽  
Pei Ni Zhao ◽  
Jing Hua Yu ◽  
Jia Dong Huang

In this paper, three kinds of molecularly imprinted sol-gel film (MISF) which have good thermal and chemical stability and three-dimensional network porous structure have been developed. The material was synthesized by sol-gel technology using lambda-cyhalothrin, trichlorphon and beta-cyfluthrin as model analytes. The special structural behavior makes the material have good capability to seizure and capture template molecules which enhanced the MISF’s recognition efficiency and the property of separation and enrichment. The material was environmental friendly and easy to operate. The binding characteristic of the imprinted film to the three pesticides was evaluated by equilibrium binding experiments. The SEM of the three MISF has been performed to characterize the morphology of MISF. The MISFs were combined with chemiluminescence (CL) technology by modifying the sol-gel into 96 micro-well plate to establish one molecular imprinting- chemiluminescence (MI-CL) sensor which realized high selectivity, sensitivity and high throughput simultaneous assay of three pesticides. The proposed method was successfully applied to the simultaneous determination of multi-component pesticide residue in foodstuff.


2009 ◽  
Author(s):  
Yoshiki Katayama ◽  
Hirotaro Kitazaki ◽  
Jeong-Hun Kang ◽  
Xiaoming Han ◽  
Takeshi Mori ◽  
...  

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