Journal
SENSORS
Volume 20, Issue 3, Pages -Publisher
MDPI
DOI: 10.3390/s20030944
Keywords
plasmonics; biosensing; telecommunications
Funding
- RNP under the Radiocommunications Reference Center (Centro de Referencia em Radiocomunicacoes - CRR) project of the National Institute of Telecommunications (Instituto Nacional de Telecomunicacoes - Inatel), Brazil [01250.075413/2018-04]
- CNPq
- FAPESP [2013/14262-7]
- National Council for Scientific and Technological Development - CNPq [305958/2018-6, 429496/2018-4]
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There has been growing interest in using strong field enhancement and light localization in plasmonic nanostructures to control the polarization properties of light. Various experimental techniques are now used to fabricate twisted metallic nanoparticles and metasurfaces, where strongly enhanced chiral near-fields are used to intensify circular dichroism (CD) signals. In this review, state-of-the-art strategies to develop such chiral plasmonic nanoparticles and metasurfaces are summarized, with emphasis on the most recent trends for the design and development of functionalizable surfaces. The major objective is to perform enantiomer selection which is relevant in pharmaceutical applications and for biosensing. Enhanced sensing capabilities are key for the design and manufacture of lab-on-a-chip devices, commonly named point-of-care biosensing devices, which are promising for next-generation healthcare systems.
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