沼泽红假单胞菌
光合作用
共轭体系
细菌
红螺科
紫色细菌
球形红杆菌
纳米颗粒
材料科学
聚合物
生物物理学
化学
光化学
纳米技术
生物
光合反应中心
生物化学
有机化学
遗传学
作者
Zijuan Wang,Dong Gao,Zhan Ye,Chengfen Xing
出处
期刊:ACS applied bio materials
[American Chemical Society]
日期:2020-04-13
卷期号:3 (5): 3423-3429
被引量:11
标识
DOI:10.1021/acsabm.0c00352
摘要
By coating photosynthetic bacteria of Rhodopseudomonas palustris with conjugated polymers nanoparticles modified with positively charged peptide TAT (CPNs-TAT), a bio-optical hybrid composite of R. palustris/CPNs-TAT has been constructed. R. palustris/CPNs-TAT augments the light coverage of R. palustris to broaden the R. palustris absorption due to excellent light-harvesting properties of CPNs-TAT, especially in the ultraviolet region. It leads to converting ultraviolet light to visible light that could be absorbed by R. palustris, allowing antenna systems around the reaction center (RC) of the photosynthetic membrane to absorb more photons, thus photons are excited and transferred to the RC where the electron-hole separation occurs. Therefore, R. palustris/CPNs-TAT improves adenosine triphosphate (ATP) synthesis by increasing proton gradient, resulting in the enhancement of the photosynthetic activity. This effort combines synthetic light-harvesting materials with photosynthetic bacteria without complicated genetic techniques to obtain the hybrid bio-optical systems for augmenting photosynthesis beyond natural photosynthetic bacteria.
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