细菌视紫红质
质子
ATP酶
电化学梯度
质子输运
三磷酸腺苷
分子马达
质子泵
化学
光合作用
分子机器
ATP合酶
生物物理学
材料科学
纳米技术
膜
生物化学
物理
酶
生物
量子力学
作者
Zibo Li,Xia Xu,Fanchen Yu,Jinbo Fei,Qiang Li,Mingdong Dong,Junbai Li
标识
DOI:10.1002/anie.202116220
摘要
Energy conversion plays an important role in the metabolism of photosynthetic organisms. Improving energy transformation by promoting a proton gradient has been a great challenge for a long time. In the present study, we realize a directional proton migration through the construction of oriented bacteriorhodopsin (BR) microcapsules coated by Fo F1 -ATPase molecular motors through layer-by-layer (LBL) assembly. The changes in the conformation of BR under illumination lead to proton transfer in a radial direction, which generates a higher proton gradient to drive the synthesis of adenosine triphosphate (ATP) by Fo F1 -ATPase. Furthermore, to promote the photosynthetic activity, optically matched quantum dots were introduced into the artificial coassembly system of BR and Fo F1 -ATPase. Such a design creates a new path for the use of light energy.
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