Chiral Plasmonics and Their Potential for Point-of-Care Biosensing Applications

Autor(es)

Paiva-Marques, Willian A. ^[1] ; Gomez, Faustino Reyes ^[2] ; Oliveira, Jr., Osvaldo N. ^[2] ; Ricardo Mejia-Salazar, J. ^[1]

Afiliação do(s) autor(es)

^[1] Natl Inst Telecommun Inatel, BR-37540000 Santa Rita Do Sapucai MG, MC - Brazil

^[2] Univ Sao Paulo, Sao Carlos Inst Phys, POB 369, BR-13560970 Sao Carlos, SP - Brazil

• Tipo de documento: Artigo de Revisão
• Fonte: SENSORS; v. 20, n. 3 FEB 2020.
• Citações Web of Science: 0

Resumo

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. (AU)

• Processo FAPESP: 13/14262-7 - Filmes nanoestruturados de materiais de interesse biológico
• Beneficiário: Osvaldo Novais de Oliveira Junior
• Modalidade de apoio: Auxílio à Pesquisa - Temático