Development of new chemical sensors exploring chirality of silver and gold nanoparticles inside chiral nematic mesoporous silica

• Grant number: 14/01025-0
• Support Opportunities: Scholarships abroad - Research
• Start date: August 15, 2014
• End date: August 14, 2015
• Field of knowledge: Physical Sciences and Mathematics - Chemistry - Inorganic Chemistry
• Principal Investigator: Vitor de Moraes Zamarion
• Grantee: Vitor de Moraes Zamarion
• Host Investigator: Mark John Maclachlan
• Host Institution: Instituto de Química (IQ). Universidade de São Paulo (USP). São Paulo , SP, Brazil
• Institution abroad: University of British Columbia, Vancouver (UBC), Canada

Abstract

The idea of the project is to study a little-explored property of plasmonic nanoparticles, the chirality. Intrinsic of this kind of nanoparticles or induced a chiral environment, circular dichroism measurements of nanoparticles immobilized in porous matrices with chiral nematic organization, have optical activity in the spectral region of surface plasmon resonance. Highly sensitive to any change in the chemical environment, the proposed research project aims to develop a new class of chemical sensors, functionalizing the nanoparticles inside the chiral matrix with multi-bridge ligands for further studies of molecular recognition. (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)

ZAMARION, VITOR M.; KHAN, MOSTOFA K.; SCHLESINGER, MAIK; BSOUL, ANAS; WALUS, KONRAD; HAMAD, WADOOD Y.; MACLACHLAN, MARK J.. Photonic metal-polymer resin nanocomposites with chiral nematic order. CHEMICAL COMMUNICATIONS, v. 52, n. 50, p. 7810-7813, 2016. (14/01025-0)

DEHN, M. H.; ARSENEAU, D. J.; BOENI, P.; BRIDGES, M. D.; BUCK, T.; CORTIE, D. L.; FLEMING, D. G.; KELLY, J. A.; MACFARLANE, W. A.; MACLACHLAN, M. J.; et al. Communication: Chemisorption of muonium on gold nanoparticles: A sensitive new probe of surface magnetism and reactivity. Journal of Chemical Physics, v. 145, n. 18, NOV 14 2016. (14/01025-0)