SYNTHESIS OF BIODEGRADABLE HYDROGEL-BENZIPORPHODIMETHENE BASED METAL SENSOR

Abstract

Biodegradable hydrogel based on polyacrylamide/carboxymethylguargum were synthesized by in situ incorporation of fluorescent molecule Benziporphodimethenes and potassium persulphate as an initiator and N’N methylbisacrylamide as cross-linking agent for detection of Zn2+ ion in aqueous solution. The free molecule in hydrogel is almost optically transparent. The modified hydrogel shows a colorimetric response to Zn2+ ions in aqueous solution in the presence of other metal ions whose aqueous solution is colorless.