Robust Functionalization of Large Microelectrode Arrays by Using Pulsed Potentiostatic Deposition.

ABSTRACT: Surface modification of microelectrodes is a central step in the development of microsensors and microsensor arrays. Here, we present an electrodeposition scheme based on voltage pulses. Key features of this method are uniformity in the deposited electrode coatings, flexibility in the overall deposition area, i.e., the sizes and number of the electrodes to be coated, and precise control of the surface texture. Deposition and characterization of four different materials are demonstrated, including layers of high-surface-area platinum, gold, conducting polymer poly(ethylenedioxythiophene), also known as PEDOT, and the non-conducting polymer poly(phenylenediamine), also known as PPD. The depositions were conducted using a fully integrated complementary metal-oxide-semiconductor (CMOS) chip wi

SUBMITTER: Rothe J 

PROVIDER: S-EPMC5298595 | biostudies-literature | 2016 Dec

REPOSITORIES: biostudies-literature