Optical fibre based non-enzymatic glucose sensing over Cu~(2+)-doped polyaniline hybrid matrix

摘要

The opto-chemical glucose sensing over cupric ion doped polyaniline (Cu~(+2)/PANI) hybrid polymer matrix coated glass rod based optode has been demonstrated.Cu~(+2)/PANI hybrid matrix was synthesized by in situ chemical polymerization of intrinsically functionalized aniline. Furthermore, developed optode has been explored for direct oxidisation of glucose on Cu~(+2)/PANI hybrid matrix for non-enzymatic glucose sensing employing O-dianisidine indicator system. The proposed glucose sensor works well in range of 50 mg/dL-200 mg/dL with response time of 15 s in artificial as well as in biological samples along with 40 days of lifespan.