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Plasmonic nanoantennas for biosensing and monitoring of cell activity

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Author(s):
Roggero, Ursula F. S. ; Zapata-Herrera, Mario ; Garcia-Etxarri, Aitzol ; Seifert, Andreas ; Hernandez-Figueroa, Hugo E.
Total Authors: 5
Document type: Journal article
Source: 2024 INTERNATIONAL CONFERENCE ON OPTICAL MEMS AND NANOPHOTONICS, OMN; v. N/A, p. 2-pg., 2024-01-01.
Abstract

In this work, we propose a novel device that utilizes plasmonic nanoantennas, which has promising capabilities in biomolecular sensing and monitoring of electrophysiological activity in living systems. The biosensing capability was validated with sucrose solutions, achieving a sensitivity of 469 nm/RIU (refractive index units). Additionally, electrical monitoring was demonstrated employing a spectroelectrochemical technique in which 40 ms pulses were detected. Our results indicate the potential of this device to advance the study of cell activity and complex organ systems. (AU)

FAPESP's process: 21/06506-0 - Strongly resonant all-dielectric metasurfaces based on quasi-dark and toroidal modes
Grantee:Hugo Enrique Hernández Figueroa
Support Opportunities: Regular Research Grants
FAPESP's process: 21/11380-5 - CPTEn - São Paulo Center for the Study of Energy Transition
Grantee:Luiz Carlos Pereira da Silva
Support Opportunities: Research Grants - Science Centers for Development
FAPESP's process: 21/00199-8 - SMART NEtworks and ServiceS for 2030 (SMARTNESS)
Grantee:Christian Rodolfo Esteve Rothenberg
Support Opportunities: Research Grants - Research Centers in Engineering Program