A molecularly imprinted colloidal array as a colorimetric sensor for label-free detection of p-nitrophenol

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.

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.


2016 ◽  
Vol 12 (2) ◽  
pp. 524 ◽  
Author(s):  
Fei Rong ◽  
Huan Wang ◽  
Yuanjin Zhao ◽  
Xiaogang Feng ◽  
Jianjun Deng

2008 ◽  
Vol 1133 ◽  
Author(s):  
Brian T. Cunningham ◽  
Leo Chan ◽  
Patrick C. Mathias ◽  
Nikhil Ganesh ◽  
Sherine George ◽  
...  

Abstract Photonic crystal surfaces represent a class of resonant optical structures that are capable of supporting high intensity electromagnetic standing waves with near-field and far-field properties that can be exploited for high sensitivity detection of biomolecules and cells. While modulation of the resonant wavelength of a photonic crystal by the dielectric permittivity of adsorbed biomaterials enables label-free detection, the resonance can also be tuned to coincide with the excitation wavelength of common fluorescent tags - including organic molecules and semiconductor quantum dots. Photonic crystals are also capable of efficiently channeling fluorescent emission into a preferred direction for enhanced extraction efficiency. Photonic crystals can be designed to support multiple resonant modes that can perform label free detection, enhanced fluorescence excitation, and enhanced fluorescence extraction simultaneously on the same device. Because photonic crystal surfaces may be inexpensively produced over large surface areas by nanoreplica molding processes, they can be incorporated into disposable labware for applications such as pharmaceutical high throughput screening. In this talk, the optical properties of surface photonic crystals will be reviewed and several applications will be described, including results from screening a 200,000-member chemical compound library for inhibitors of protein-DNA interactions, gene expression microarrays, and high sensitivity of protein biomarkers.


2020 ◽  
Vol 310 ◽  
pp. 127671 ◽  
Author(s):  
Yanqiu Song ◽  
Jialei Bai ◽  
Rong Zhang ◽  
Enqi Wu ◽  
Jiang Wang ◽  
...  

RSC Advances ◽  
2017 ◽  
Vol 7 (36) ◽  
pp. 22215-22221 ◽  
Author(s):  
Yu Wang ◽  
Shuyue Ren ◽  
Huicong Jiang ◽  
Yuan Peng ◽  
Jialei Bai ◽  
...  

The novel MIPs-coated UCNPs fluorescent sensor could be used for on-field detection of diethylstilbestrol in real samples.


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