Spectroelectrochemical SERS sensors based on selective plasmonic Raman probes associated with superparamagnetic nanoparticles

• Grant number: 19/19218-2
• Support Opportunities: Scholarships in Brazil - Post-Doctoral
• Effective date (Start): November 01, 2019
• Effective date (End): February 05, 2023
• Field of knowledge: Physical Sciences and Mathematics - Chemistry - Inorganic Chemistry
• Principal Investigator: Henrique Eisi Toma
• Grantee: Douglas Santana Franciscato
• Host Institution: Instituto de Química (IQ). Universidade de São Paulo (USP). São Paulo , SP, Brazil
• Associated research grant: 18/21489-1 - Supramolecular nanotechnology: design, materials and devices, AP.TEM

Abstract

Silver and gold nanoparticles have been extensively employed as SERS probes for the detection of chemical and biological species. Our proposal starts with the development of SERS probes; exploring, in the sequence, their association with superparamagnetic nanoparticles aiming the magnetic confinement on electrode surfaces. Finally, it focus on the spectroelectrochemical response of the plasmonic, magnetic, electrochemical sensor. Magnetic confinement of the conjugated nanoparticles will enhance the SERS signals, and by scanning the potentials, it will be possible to probe the redox species generated on the magnetic SERS probes, monitoring their spectroelectrochemical Raman signals. (AU)

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)

MATTIONI, JOAO VICTOR; FRANCISCATO, DOUGLAS SANTANA; SIHN, LUCA MICHAEL; TOMA, HENRIQUE EISI. Analytical determination of gold ions based on ranelate induced nanoparticle formation. ANALYTICAL METHODS, v. 14, n. 17, p. 7-pg., 2022-03-25. (18/21489-1, 19/14771-5, 19/19218-2, 18/25974-1)