Volume 55, Issue 40 pp. 12503-12507
Communication

Mimicking Primitive Photobacteria: Sustainable Hydrogen Evolution Based on Peptide–Porphyrin Co-Assemblies with a Self-Mineralized Reaction Center

Dr. Kai Liu

Dr. Kai Liu

State Key Laboratory of Biochemical Engineering, Institute of Process Engineering, Chinese Academy of Sciences, 100190 Beijing, China

Center for Mesoscience, Institute of Process Engineering, Chinese Academy of Sciences, 100190 Beijing, China

University of Chinese Academy of Sciences, 100049 Beijing, China

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Dr. Ruirui Xing

Dr. Ruirui Xing

State Key Laboratory of Biochemical Engineering, Institute of Process Engineering, Chinese Academy of Sciences, 100190 Beijing, China

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Yongxin Li

Yongxin Li

State Key Laboratory of Biochemical Engineering, Institute of Process Engineering, Chinese Academy of Sciences, 100190 Beijing, China

University of Chinese Academy of Sciences, 100049 Beijing, China

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Dr. Qianli Zou

Dr. Qianli Zou

State Key Laboratory of Biochemical Engineering, Institute of Process Engineering, Chinese Academy of Sciences, 100190 Beijing, China

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Prof. Dr. Helmuth Möhwald

Prof. Dr. Helmuth Möhwald

Max Planck Institute of Colloids and Interfaces, Am Mühlenberg 1, 14476 Potsdam/Golm, Germany

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Prof. Dr. Xuehai Yan

Corresponding Author

Prof. Dr. Xuehai Yan

State Key Laboratory of Biochemical Engineering, Institute of Process Engineering, Chinese Academy of Sciences, 100190 Beijing, China

Center for Mesoscience, Institute of Process Engineering, Chinese Academy of Sciences, 100190 Beijing, China

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First published: 01 September 2016
Citations: 157

Graphical Abstract

Mimicking primitive photosystems: Self-organization, dynamic evolution, and sustainable utilization of components in a “prebiotic soup” are conceptually and experimentally validated through simple but well-functioning peptide–porphyrin co-assemblies, which support a new type of primitive hydrogen producing photobacteria model.

Abstract

Molecular evolution, with self-organization of simple molecules towards complex functional systems, provides a new strategy for biomimetic architectonics and perspectives for understanding the complex processes of life. However, there remain many challenges to fabrication of systems comprising different types of units, which interact with one another to perform desired functions. Challenges arise from a lack of stability, dynamic properties, and functionalities that reconcile with a given environment. A co-assembling fiber system composed of simple peptide and porphyrin is presented. This material is considered a prebiotic assembly of molecules that can be rather stable and flexibly self-functionalized with the assistance of visible light in a “prebiotic soup”; acidic (pH 2), hot (70 °C), and mineral-containing (Na+, Ti4+, Pt2+, and so forth) water. The co-assembled peptide–porphyrin fiber, with self-mineralized reaction centers, may serve as a primitive photobacteria-like cellular model to achieve light harvesting, energy transfer, and ultimately sustainable hydrogen evolution.

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