Functionalized photonic crystal for the sensing of Sarin agents

Chunxiao Yan, Fenglian Qi, Shuguang Li, Jiayu Xu, Chao Liu, Zihui Meng*, Lili Qiu, Min Xue, Wei Lu, Zequn Yan

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

18 Citations (Scopus)

Abstract

The indiscriminate use of nerve agents by terrorist groups has attracted attention of the scientific communities toward the development of novel sensor technique for these deadly chemicals. A photonic crystal (PhC) hydrogel immobilized with butyrylcholinesterase (BuChE) was firstly prepared for the sensing of Sarin agents. Periodic polystyrene colloidal (240 nm) array was embedded inside an acrylamide hydrogel, and then BuChE was immobilized inside the hydrogel matrix via condensation with 3-(diethoxyphosphoryloxy)−1,2,3-benzotriazin-4(3 h)-one (DEPBT). It indicated that a total of 3.7 units of BuChE were immobilized onto the PhC hydrogel. The functionalized hydrogel recognized the Sarin agent and then shrunk, thus the diffraction of PhC hydrogel blue shifted significantly, and a limit of detection (LOD) of 10−15 mol L−1 was achieved.

Original languageEnglish
Pages (from-to)412-417
Number of pages6
JournalTalanta
Volume159
DOIs
Publication statusPublished - 1 Oct 2016

Keywords

  • Biosensor
  • Butyrylcholinesterase
  • Nerve agents
  • Photonic crystal
  • Sarin agent

Fingerprint

Dive into the research topics of 'Functionalized photonic crystal for the sensing of Sarin agents'. Together they form a unique fingerprint.

Cite this