Molecular Imprinted Photonic Crystal Sensor for the Rapid and Visual Detection of Benzocaine in Fish

2019 ◽  
Vol 803 ◽  
pp. 129-133
Author(s):  
Shi Li Chen ◽  
Hui Sun ◽  
Zhen Jian Huang ◽  
Si Yang Fang ◽  
Jia Hua He ◽  
...  

A “smart” molecular imprinted photonic crystal (MIPC) sensor has been developed based on the combination of photonic crystal (PC) and molecular imprinting technique (MIT). It can give rise to readable optical signals and color changes upon sensing benzocaine with detection limit of 16.5 μg/ml. In fish sample detection, the developed MIPC sensor shows satisfied result accuracy with HPLC. With the advantage of satisfactory specificity, rapid responsiveness and excellent recoverability, this MIPC material shows great potential towards on-site screening and visual detection of trace benzocaine in real sample.

RSC Advances ◽  
2019 ◽  
Vol 9 (29) ◽  
pp. 16831-16838 ◽  
Author(s):  
Shili Chen ◽  
Hui Sun ◽  
Zhenjian Huang ◽  
Zhenkai Jin ◽  
Siyang Fang ◽  
...  

A novel smart sensor for the rapid and label-free detection of benzocaine has been developed based on the combination of photonic crystal (PC) and molecular imprinting polymer (MIP) techniques.


2014 ◽  
Vol 6 (3) ◽  
pp. 831-837 ◽  
Author(s):  
Fei Xue ◽  
Zihui Meng ◽  
Yifei Wang ◽  
Shuyue Huang ◽  
Qiuhong Wang ◽  
...  

We report on the synthesis of a label-free p-nitrophenol (PNP) responsive crystalline colloidal array (CCA) based on the combination of a photonic crystal and the molecular imprinting technique.


Chemosensors ◽  
2021 ◽  
Vol 9 (11) ◽  
pp. 314
Author(s):  
Yangyang Liu ◽  
Hang Gu ◽  
Jiahua He ◽  
Anqi Cui ◽  
Xiaoyi Wu ◽  
...  

In consideration of the endocrine disrupting effects caused by the butyl paraben (BP), a portable visual sensor has been developed based on the photonic crystal and molecular imprinting technology for the rapid screen of BP in toner sample, which is a type of aqueous cosmetic to soften the face skin. By integrating the self-reporting and molecular recognition properties, the molecular imprinting photonic crystal (MIPC) sensor can display obvious color changes regularly according to the concentration of BP. Based on the “color guide”, the content of BP in toner sample can be estimated directly with the naked eye. In addition, the Bragg diffraction spectrum of MIPC can red shift linearly with the increase of the concentration of BP in sample solution with correlation coefficient as 0.9968. The quantitative determination of BP can be achieved through the optical fiber spectrometer with detection limit as 0.022 mmol·L−1. With good selectivity, this MIPC film can recognize BPs against the complex sample matrix, showing a standard addition recovery of 107% for the real samples.


2015 ◽  
Vol 3 (37) ◽  
pp. 9524-9527 ◽  
Author(s):  
Lu Li ◽  
Bin Zhao ◽  
Yue Long ◽  
Jin-Ming Gao ◽  
Guoqiang Yang ◽  
...  

This communication demonstrates a facile method to detect CO32− by naked eyes through color change based on the pH dependence of inverse opal photonic crystal polymer films.


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