Water-soluble polymer-bound biomimetic analogues of cytochrome C oxidase catalyze 4e- reduction of O2 to water.
Activity toward catalytic O(2) reduction by polyacrylic acid (PAA) and polyvinylpyridine (PVP) polymers containing functional analogues of the O(2)-reducing site of cytochrome c oxidase (CcO) has been studied in solution and on the electrode surface. Pronounced effects of the porphyrin microenvironment on the selectivity and turnover frequency of the catalysts were observed.
Collman
James P
JP
Department of Chemistry, Stanford University, Stanford, California 94305, USA. jpc@stanford.edu
Fudickar
Werner
W
Shiryaeva
Irina
I
D002384:Catalysis; D004563:Electrochemistry; D003576:Electron Transport Complex IV / Q000737:chemistry / Q000378:metabolism*; D007501:Iron / Q000737:chemistry; D008665:Metalloporphyrins / Q000737:chemistry*; D018716:Molecular Mimicry; D015394:Molecular Structure; D010084:Oxidation-Reduction; D010100:Oxygen / Q000737:chemistry* / Q000378:metabolism; D011108:Polymers / Q000737:chemistry; D014867:Water / Q000737:chemistry*
D008665:Metalloporphyrins; D011108:Polymers; D014867:Water; D007501:Iron; D003576:Electron Transport Complex IV; D010100:Oxygen