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Design of multi metal nanoarrays for optical sensors

Grant number: 17/50264-5
Support Opportunities:Regular Research Grants
Duration: February 01, 2018 - January 31, 2020
Field of knowledge:Physical Sciences and Mathematics - Chemistry - Physical-Chemistry
Convênio/Acordo: University of New South Wales
Mobility Program: SPRINT - Projetos de pesquisa - Mobilidade
Principal Investigator:Susana Inés Córdoba de Torresi
Grantee:Susana Inés Córdoba de Torresi
Principal researcher abroad: Vinicius Romero Gonçalves
Institution abroad: University of New South Wales (UNSW), Australia
Host Institution: Instituto de Química (IQ). Universidade de São Paulo (USP). São Paulo , SP, Brazil


Surface-enhanced Raman spectroscopy (SERS) is a powerful tool for ultrasensitive, non-destructive and real-time analysis. Noble metals with rough surfaces are typically used as SERS substrates. The aim of this project is to provide versatility to this class of sensors by designing platforms in which nanoarrays of mixed metals are concomitantly present on the sensing surface. This is important for aiming a unique device capable of responding to a wide excitation wavelength, which is a requirement for analyzing complex samples. Our objective is to combine the template-assisted electrodeposition technique mastered at USP with the light-activated electrochemistry technique developed at UNSW to propose a protocol for preparing such surfaces without involving more costly microfabrication techniques. (AU)

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Scientific publications
(References retrieved automatically from Web of Science and SciELO through information on FAPESP grants and their corresponding numbers as mentioned in the publications by the authors)
GAUTAM, SHREEDHAR; GONCALES, VINICIUS R.; COLOMBO, RAFAEL N. P.; TANG, WENXIAN; CORDOBA DE TORRESI, I, SUSANA; REECE, PETER J.; TILLEY, RICHARD D.; JUSTIN GOODING, J.. High-resolution light-activated electrochemistry on amorphous silicon-based photoelectrodes. CHEMICAL COMMUNICATIONS, v. 56, n. 54, p. 7435-7438, . (17/50264-5, 15/12786-4, 15/26308-7)
CHENG, RUMEI; COLOMBO, RAFAEL N. P.; ZHANG, LONG; NGUYEN, DUYEN H. T.; TILLEY, RICHARD; CORDOBA DE TORRESI, I, SUSANA; DAI, LIMING; GOODING, J. JUSTIN; GONCALES, VINICIUS R.. Porous Graphene Oxide Films Prepared via the Breath-Figure Method: A Simple Strategy for Switching Access of Redox Species to an Electrode Surface. ACS APPLIED MATERIALS & INTERFACES, v. 12, n. 49, p. 55181-55188, . (18/10930-9, 15/26308-7, 17/50264-5, 15/12786-4)
COLOMBO, RAFAEL N. P.; GONCALES, VINICIUS R.; GAUTAM, SHREEDHAR; TILLEY, RICHARD; JUSTIN GOODING, J.; CORDOBA DE TORRESI, I, SUSANA. Spatially localized electrodeposition of multiple metals via light-activated electrochemistry for surface enhanced Raman spectroscopy applications. CHEMICAL COMMUNICATIONS, v. 56, n. 43, p. 5831-5834, . (17/50264-5, 15/12786-4, 15/26308-7)

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