TY - JOUR
T1 - Ultrafast Electron Transfer in Au–Cyanobacteria Hybrid for Solar to Chemical Production
AU - Hu, Qiushi
AU - Hu, Haitao
AU - Cui, Lei
AU - Li, Zhaodong
AU - Svedruzic, Drazenka
AU - Blackburn, Jeffrey L.
AU - Beard, Matthew C.
AU - Ni, Jun
AU - Xiong, Wei
AU - Gao, Xiang
AU - Chen, Xihan
PY - 2023/1/13
Y1 - 2023/1/13
N2 - The rise of inorganic–biohybrid organisms for solar-to-chemical production has spurred mechanistic investigations into the dynamics of the biotic–abiotic interface to drive the development of next-generation hybrid systems. The model system, cyanobacteria–gold nanoparticle hybrids, combines a light harvester with a photosynthetic bacterium to drive the reduction of CO2 to glycerol with improved efficiency and increased glycerol production by 14.6%, in comparison to cyanobacteria only. In this work, we report insights into this unique photochemical behavior and propose a charge-transfer pathway from Au nanoparticle to cyanobacteria. Transient absorption (TA) spectroscopy revealed that photoexcited electron transfer rates are on the order of a few ps to the potential electron acceptor in photosystem II. This work represents a promising platform to utilize a conventional spectroscopic methodology to extract insights from more complex biotic–abiotic hybrid systems. © 2022 American Chemical Society
AB - The rise of inorganic–biohybrid organisms for solar-to-chemical production has spurred mechanistic investigations into the dynamics of the biotic–abiotic interface to drive the development of next-generation hybrid systems. The model system, cyanobacteria–gold nanoparticle hybrids, combines a light harvester with a photosynthetic bacterium to drive the reduction of CO2 to glycerol with improved efficiency and increased glycerol production by 14.6%, in comparison to cyanobacteria only. In this work, we report insights into this unique photochemical behavior and propose a charge-transfer pathway from Au nanoparticle to cyanobacteria. Transient absorption (TA) spectroscopy revealed that photoexcited electron transfer rates are on the order of a few ps to the potential electron acceptor in photosystem II. This work represents a promising platform to utilize a conventional spectroscopic methodology to extract insights from more complex biotic–abiotic hybrid systems. © 2022 American Chemical Society
KW - Alcohols
KW - Bacteria
KW - Charge transfer
KW - Kinetics
KW - Metal nanoparticles
UR - http://www.scopus.com/inward/record.url?scp=85144941146&partnerID=8YFLogxK
UR - http://gateway.isiknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcAuth=LinksAMR&SrcApp=PARTNER_APP&DestLinkType=FullRecord&DestApp=WOS&KeyUT=000913572500001
UR - https://www.scopus.com/record/pubmetrics.uri?eid=2-s2.0-85144941146&origin=recordpage
U2 - 10.1021/acsenergylett.2c02707
DO - 10.1021/acsenergylett.2c02707
M3 - RGC 21 - Publication in refereed journal
SN - 2380-8195
VL - 8
SP - 677
EP - 684
JO - ACS Energy Letters
JF - ACS Energy Letters
IS - 1
ER -