Response behavior of ion-sensitive hydrogel based on crown ether

A type of poly(N-isopropylacrylamide) (PNIPAM) hydrogel with specific ion-sensitivity originating from crown ether unit is synthesized. The impacts of crown ether unit on temperature-sensitivity and ion-sensitivity of hydrogel are investigated. The result showed that crown ether units in the hydrogel network contributed to the ion response though they would reduce temperature-sensitivity of the hydrogel compared with traditional PNIPAM. Furthermore, the thermo-sensitivity and ion-recognition behaviors of the hydrogel are detailedly demonstrated which showed its potential as a promising candidate material for environment inspection, sensors and drug delivery systems.

A type of ion-sensitive hydrogel based on crown ether is synthesized. Impacts of crown ether unit on temperature-sensitivity and ion-sensitivity of hydrogel are detailed investigated. Result shows that crown ether units would contribute good ion-recognition to the hydrogel network. The hydrogel would be a promising candidate material for environment inspection, sensors and drug delivery systems.Figure optionsDownload as PowerPoint slideHighlights
► A new preparation route of ion-sensitive hydrogel based crown ether.
► Impacts of crown ether units on morphology of hydrogel were firstly demonstrated.
► Response behaviors of ion-sensitive hydrogel were optimized.
► A promising candidate material for environment inspection, sensors and drug delivery systems.