A PhC sensor was firstly utilized to detect a real chemical warfare, Sarin agent, with high sensitivity.
BuChE, which is cheaper and has better immobilization ability compared with AChE, was immobilized onto PhC sensor.
DEPBT was used as a condensation agent for the condensation of BuChE with PhC hydrogel.
The technique developed in this research also represented a potential in the detection of other nerve agents.