Potentiometric detection of glucose based on oligomerization with a diboronic acid using polycation as an indicator

Abstract

A novel potentiometric sensor for D-glucose (Glu) using 4,4’-biphenyldiboronic acid as a receptor and polyion (poly-N-(3-aminopropyl)methacrylamide, PAPMA) as an indicator is described. The diboronic acid condenses with Glu via its...

Potentiometric Sensing

“…Li et al described a potentiometric d -glucose sensor using 4,4′-biphenyldiboronic acid as a receptor and poly- N -(3-aminopropyl) methacrylamide (PAPMA) as an indicator polycation with an ion-selective membrane based on dinonylnaphthalene sulfonic acid . The sensing principle is based on the condensation of diboronic acid with glucose via its two cis -diol units forming cyclic or linear oligomeric polyanions.…”

“…Li et al described a potentiometric D-glucose sensor using 4,4′-biphenyldiboronic acid as a receptor and poly-N-(3aminopropyl) methacrylamide (PAPMA) as an indicator polycation with an ion-selective membrane based on dinonylnaphthalene sulfonic acid. 60 The sensing principle is based on the condensation of diboronic acid with glucose via its two cis-diol units forming cyclic or linear oligomeric polyanions. These polyanions interact electrostatically with PAPMA, resulting in the significantly decreased potentiometric response of a polycation-selective membrane in comparison with the sample without glucose.…”