High salt compatible oxyanion receptors by dual ion imprinting

Sudhirkumar Shinde,Mona Mansour,Liliia Mavliutova,Celina Wierzbicka,Anil Incel,Börje Sellergren

doi:10.1039/c9sc06508c

Abstract

Imprinting of an ion-pair in presence of mutually compatible anion and cation host monomers leads to polymers showing enhanced ion uptake in competitive high ionic strength buffers.

Highlights

Anion recognition drives a multitude of processes which are crucial for the living cell.[1,2] The work horses in these processes are anion receptors re ned by evolution to discriminatively bind anions in water
We here report on a comprehensive supramolecular approach to anion receptor design relying on concurrent recognition of both anion and cation
Complexation can be induced by proton transfer from the acid to bulky amine bases such as pentamethylpiperidine (PMP) or by the use of quaternary ammonium counterions which have been shown to produce pronounced counterion memory effects.[14,24]

Summary

Introduction

Anion recognition drives a multitude of processes which are crucial for the living cell.[1,2] The work horses in these processes are anion receptors re ned by evolution to discriminatively bind anions in water. The design of hosts for either cations or anions is complicated due to the competition for binding by the host or guest counterions.

Results

Conclusion