Volume 54, Issue 41 pp. 11961-11965
Communication

Silicification-Induced Cell Aggregation for the Sustainable Production of H2 under Aerobic Conditions

Wei Xiong

Wei Xiong

Center for Biomaterials and Biopathways, Department of Chemistry, Zhejiang University, Hangzhou, Zhejiang 310027 (China)

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Xiaohong Zhao

Xiaohong Zhao

College of Life and Environmental Science, Shanghai Normal University, Shanghai, 200234 (China)

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Genxing Zhu

Genxing Zhu

Center for Biomaterials and Biopathways, Department of Chemistry, Zhejiang University, Hangzhou, Zhejiang 310027 (China)

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Changyu Shao

Changyu Shao

Qiushi Academy for Advanced Studies and State Key Laboratory of Silicon Materials, Zhejiang University, Hangzhou, Zhejiang 310027 (China)

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Yaling Li

Yaling Li

Center for Biomaterials and Biopathways, Department of Chemistry, Zhejiang University, Hangzhou, Zhejiang 310027 (China)

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Prof. Dr. Weimin Ma

Corresponding Author

Prof. Dr. Weimin Ma

College of Life and Environmental Science, Shanghai Normal University, Shanghai, 200234 (China)

Weimin Ma, College of Life and Environmental Science, Shanghai Normal University, Shanghai, 200234 (China)

Xurong Xu, Qiushi Academy for Advanced Studies and State Key Laboratory of Silicon Materials, Zhejiang University, Hangzhou, Zhejiang 310027 (China)

Ruikang Tang, Center for Biomaterials and Biopathways, Department of Chemistry, Zhejiang University, Hangzhou, Zhejiang 310027 (China)

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Dr. Xurong Xu

Corresponding Author

Dr. Xurong Xu

Qiushi Academy for Advanced Studies and State Key Laboratory of Silicon Materials, Zhejiang University, Hangzhou, Zhejiang 310027 (China)

Weimin Ma, College of Life and Environmental Science, Shanghai Normal University, Shanghai, 200234 (China)

Xurong Xu, Qiushi Academy for Advanced Studies and State Key Laboratory of Silicon Materials, Zhejiang University, Hangzhou, Zhejiang 310027 (China)

Ruikang Tang, Center for Biomaterials and Biopathways, Department of Chemistry, Zhejiang University, Hangzhou, Zhejiang 310027 (China)

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Prof. Dr. Ruikang Tang

Corresponding Author

Prof. Dr. Ruikang Tang

Center for Biomaterials and Biopathways, Department of Chemistry, Zhejiang University, Hangzhou, Zhejiang 310027 (China)

Weimin Ma, College of Life and Environmental Science, Shanghai Normal University, Shanghai, 200234 (China)

Xurong Xu, Qiushi Academy for Advanced Studies and State Key Laboratory of Silicon Materials, Zhejiang University, Hangzhou, Zhejiang 310027 (China)

Ruikang Tang, Center for Biomaterials and Biopathways, Department of Chemistry, Zhejiang University, Hangzhou, Zhejiang 310027 (China)

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First published: 25 August 2015
Citations: 89

Graphical Abstract

Green algae aggregates induced by biomineralization are a novel cell-material hybrid that can sustainably produce hydrogen even under natural aerobic conditions. Its evolution of photobiological hydrogen can be understood by the spatial–functional differentiation of the cells within the aggregate.

Abstract

Photobiological hydrogen production is of great importance because of its promise for generating clean renewable energy. In nature, green algae cannot produce hydrogen as a result of the extreme sensitivity of hydrogenase to oxygen. However, we find that silicification-induced green algae aggregates can achieve sustainable photobiological hydrogen production even under natural aerobic conditions. The core–shell structure of the green algae aggregates creates a balance between photosynthetic electron generation and hydrogenase activity, thus allowing the production of hydrogen. This finding provides a viable pathway for the solar-driven splitting of water into hydrogen and oxygen to develop green energy alternatives by using rationally designed cell–material complexes.

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