TY  - JOUR
A1  - Kogikoski Junior, Sergio
A1  - Dutta, Anushree
A1  - Bald, Ilko
T1  - Spatial separation of plasmonic hot-electron generation and a hydrodehalogenation reaction center using a DNA wire
JF  - ACS nano
N2  - Using hot charge carriers far from a plasmonic nanoparticle surface is very attractive for many applications in catalysis and nanomedicine and will lead to a better understanding of plasmon-induced processes, such as hot-charge-carrier- or heat-driven chemical reactions. Herein we show that DNA is able to transfer hot electrons generated by a silver nanoparticle over several nanometers to drive a chemical reaction in a molecule nonadsorbed on the surface. For this we use 8-bromo-adenosine introduced in different positions within a double-stranded DNA oligonucleotide. The DNA is also used to assemble the nanoparticles into nanoparticles ensembles enabling the use of surface-enhanced Raman scattering to track the decomposition reaction. To prove the DNA-mediated transfer, the probe molecule was insulated from the source of charge carriers, which hindered the reaction. The results indicate that DNA can be used to study the transfer of hot electrons and the mechanisms of advanced plasmonic catalysts.
KW  - plasmonics
KW  - DNA nanotechnology
KW  - hot electrons
KW  - charge transfer
KW  - SERS
KW  - superlattices
Y1  - 2021
U6  - https://doi.org/10.1021/acsnano.1c09176
SN  - 1936-0851
SN  - 1936-086X
VL  - 15
IS  - 12
SP  - 20562
EP  - 20573
PB  - American Chemical Society
CY  - Washington
ER  -