Xian-Wei Liu and Xue-Fei Sun contributed equally to this work.
Photoautotrophic cathodic oxygen reduction catalyzed by a green alga, Chlamydomonas reinhardtii†
Article first published online: 16 AUG 2012
Copyright © 2012 Wiley Periodicals, Inc.
Biotechnology and Bioengineering
Volume 110, Issue 1, pages 173–179, January 2013
How to Cite
Liu, X.-W., Sun, X.-F., Huang, Y.-X., Li, D.-B., Zeng, R. J., Xiong, L., Sheng, G.-P., Li, W.-W., Cheng, Y.-Y., Wang, S.-G. and Yu, H.-Q. (2013), Photoautotrophic cathodic oxygen reduction catalyzed by a green alga, Chlamydomonas reinhardtii. Biotechnol. Bioeng., 110: 173–179. doi: 10.1002/bit.24628
- Issue published online: 20 NOV 2012
- Article first published online: 16 AUG 2012
- Accepted manuscript online: 7 AUG 2012 08:22AM EST
- Manuscript Accepted: 27 JUL 2012
- Manuscript Revised: 16 JUL 2012
- Manuscript Received: 9 MAR 2012
- Natural Science Foundation of China. Grant Number: 21021140001
- Fundamental Research Funds for the Central Universities. Grant Number: WK2060190007
- biofuel cells (BFCs);
- green alga;
- oxygen reduction;
Biofuel cells (BFCs) use enzymes and microbial cells to produce energy from bioavailable substrates and treat various wastewaters, and cathodic oxygen reduction is a key factor governing the efficiency of BFCs. In this study, we demonstrated that a green alga, Chlamydomonas reinhardtii, could directly mediate oxygen reduction. Cyclic voltammogram analysis revealed that the C. reinhardtii biofilm formed on a solid electrode was responsible for oxygen reduction without dosing of electron mediator. Furthermore, 4-electron oxygen reduction pathway was found in this self-sustained, light-responded BFC. The results of this study could expand our understanding and viewpoints of biocathode catalysis, which is essential for novel catalyst design and development for BFCs. Biotechnol. Bioeng. 2013; 110: 173–179. © 2012 Wiley Periodicals, Inc.