期刊
ACS APPLIED MATERIALS & INTERFACES
卷 10, 期 32, 页码 26835-26840出版社
AMER CHEMICAL SOC
DOI: 10.1021/acsami.8b11167
关键词
DNA origami; plasmonic nanostructures; plasmonic chirality; AuNR dimers; AuNR trimers
资金
- National Science Foundation of China [21425103, 21673280, 51703255]
Templated by DNA origami, plasmonic gold nanorods (AuNRs) could be assembled into complex nanostructures with strong chiroptical activities. However, it is still not clear how the plasmonic chirality of a complex nanostructure matters with its daughter structural components. Here, we rationally design and fabricate a series of AuNR trimers and their daughter AuNR dimers. Strikingly, we corroborate by circular dichroism spectroscopy that the plasmonic chirality of asymmetrical AuNR trimers is a nearly perfect summation of the chiroptical response of all their constituent dimeric components. Our results provide fundamental insight into the origin of the plasmonic chirality of complex nanostructures.
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