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Biomimetic Oxygen-Evolving Photobacteria Based on Amino Acid and Porphyrin Hierarchical Self-Organization
Liu, Kai1,3; Zhang, Han1; Xing, Ruirui1; Zou, Qianli1; Yan, Xuehai1,2,3
2017-12-01
发表期刊ACS NANO
ISSN1936-0851
卷号11期号:12页码:12840-12848
摘要

Biomimetic organization provides a promising strategy to develop functional materials and understand biological processes. However, how to mimic complex biological systems using simple biomolecular units remains a great challenge. Herein, we design and fabricate a biomimetic cyanobacteria model based on self-integration of small bioinspired molecules, including amphiphilic amino acid, 3,4-dihydroxyphenylalanine (DOPA), and metalloporphyrin and cobalt oxide nanoparticles (Co3O4 NPs), with the assistance of chemical conjugation and molecular self-assembly. The assembled amino acid fiber can be modified by DOPA to form covalently bound DOPA melanin containing hydroxyl and quinone species via Schiff base reaction. The adhering template can further tune the self-assembly of metalloporphyrin and Co3O4 NPs into J-aggregation and dispersive distribution, respectively, mainly via coordination binding. Metalloporphyrin molecules in the resulting hybrid fibers capture light; quinone species accept the excited electrons, and Co3O4 NPs catalyze water oxidation. Thus, the essential components of the photosystem-II protein complex in cyanobacteria are simplified and engineered into a simple framework, still retaining a similar photosynthetic mechanism. In addition, this architecture leads to efficient coupling of antenna, quinone-type reaction center, and photocatalyst, which increases the flux of light energy from antenna to reaction center for charge separation, resulting in enhanced oxygen evolution rate with excellent sustainability.

关键词Amino Acids Porphyrins Self-organization Oxygen Evolution Biomimetic Photosynthesis
文章类型Article
WOS标题词Science & Technology ; Physical Sciences ; Technology
DOI10.1021/acsnano.7b08215
收录类别SCI
语种英语
关键词[WOS]Driven Water Oxidation ; Artificial Photosynthesis ; Photosystem-ii ; Functional Materials ; Surface Modification ; Crystal-structure ; Electron-transfer ; Chemistry ; Nanostructures ; Evolution
WOS研究方向Chemistry ; Science & Technology - Other Topics ; Materials Science
WOS类目Chemistry, Multidisciplinary ; Chemistry, Physical ; Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary
项目资助者National Natural Science Foundation of China(21522307 ; Talent Fund of the Recruitment Program of Global Youth Experts ; Key Research Program of the Frontier Sciences of the Chinese Academy of Sciences(QYZDB-SSW-JSC034) ; 21473208 ; 91434103 ; 21773248)
WOS记录号WOS:000418990200115
引用统计
文献类型期刊论文
条目标识符http://ir.ipe.ac.cn/handle/122111/23490
专题研究所(批量导入)
通讯作者Yan, Xuehai
作者单位1.Chinese Acad Sci, State Key Lab Biochem Engn, Beijing 100190, Peoples R China
2.Chinese Acad Sci, Ctr Mesosci, Inst Proc Engn, Beijing 100190, Peoples R China
3.Univ Chinese Acad Sci, Beijing 100190, Peoples R China
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GB/T 7714
Liu, Kai,Zhang, Han,Xing, Ruirui,et al. Biomimetic Oxygen-Evolving Photobacteria Based on Amino Acid and Porphyrin Hierarchical Self-Organization[J]. ACS NANO,2017,11(12):12840-12848.
APA Liu, Kai,Zhang, Han,Xing, Ruirui,Zou, Qianli,&Yan, Xuehai.(2017).Biomimetic Oxygen-Evolving Photobacteria Based on Amino Acid and Porphyrin Hierarchical Self-Organization.ACS NANO,11(12),12840-12848.
MLA Liu, Kai,et al."Biomimetic Oxygen-Evolving Photobacteria Based on Amino Acid and Porphyrin Hierarchical Self-Organization".ACS NANO 11.12(2017):12840-12848.
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