Poisoning of highly porous platinum electrodes by amino acids and tissue fluid constituents
16.07.2015
Köhler C, Bleck L, Frei M, Zengerle R, Kerzenmacher S.
ChemElectroChem 2015;2(11):1785-1793
The first comprehensive study of the poisoning behavior of physiological amino acids and important tissue fluid constitu- ents on porous platinum electrodes was performed. On the basis of chronoamperometry under physiological conditions, the results are highly relevant for the development of enzyme- free implantable glucose fuel cells and possibly also glucose sensors. The strongest poisoning was exhibited by positively charged alkaline amino acids and by some of the neutral amino acids, as well as by uric acid and creatinine.
