Plasticizers of High Lipophilicities for Clinically Relevant Ion-Selective Electrodes (ISE) and Multisensing Field Effect Transistors (ISFET)

Abstract

Two new types of plasticizers based on tetracarboxylated benzophenone and benzhydrol, respectively, are presented. They exhibit superior performance particularly in ion-selective solvent polymeric membrane electrodes. Their high lipophilicity, their high viscosity as well as their reduced migration tendency and favourable adhesive characteristics in poly(vinyl chloride) (PVC) formulations make them especially attractive in miniaturized ion-sensing devices (such as catheter-electrodes and ISFET’s) for clinical applications.