科研之友
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摘要
Photosystem Ⅱ(PSⅡ) is a fascinating photosynthesis-involved enzyme, participating in sunlight-harvest,water splitting, oxygen release, and proton/electron generation and transfer. Scientists have been inspired to couple PSⅡ with synthetic hierarchical structures via biomimetic assembly, facilitating attainment of natural photosynthesis processes, such as photocatalytic water splitting, electron transfer and ATP synthesis, in vivo. In the past decade, there has been significant progress in PSⅡ-based biomimetic systems,such as artificial chloroplasts and photoelectrochemical cells. The biomimetic assembly approach helps PSⅡ gather functions and properties from synthetic materials, resulting in a complex with partly natural and partly synthetic components. PSⅡ-based biomimetic assembly offers opportunities to forward semi-biohybrid research and synchronously inspire optimization of artificial light-harvest micro/nanodevices. This review summarizes recent studies on how PSⅡ combines with artificial structures via molecular assembly and highlights PSⅡ-based semi-natural biosystems which arise from synthetic parts and natural components. Moreover, we discuss the challenges and remaining problems for PSⅡ-based systems and the outlook for their development and applications. We believe this topic provides inspiration for rational designs to develop biomimetic PSⅡ-based semi-natural devices and further reveal the secrets of energy conversion within natural photosynthesis from the molecular level.
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