Exploring stochastic dynamics of nanomaterials

• Grant number: 16/23430-9
• Support Opportunities: Regular Research Grants
• Duration: May 01, 2017 - October 31, 2019
• Field of knowledge: Physical Sciences and Mathematics - Chemistry - Physical-Chemistry
• Principal Investigator: René Alfonso Nome Silva
• Grantee: René Alfonso Nome Silva
• Host Institution: Instituto de Química (IQ). Universidade Estadual de Campinas (UNICAMP). Campinas , SP, Brazil
• Associated grant(s): 19/00290-5 - Rotational diffusion in two-dimensional colloidal glasses, AP.R SPRINT

Abstract

This research proposal aims to study stochastic dynamics of nanoparticles under the influence of thermal, harmonic, optical and non-conservative forces through an integrated experimental/computational approach. On the experimental side, we plan to characterize nanoparticle dynamics through quantitative microscopy, optical tweezers and femtosecond time-resolved spectroscopy measurements (pump-probe, optical Kerr effect, and four-wave mixing). On the computational front, we plan to integrate molecular dynamics with plasmonics to investigate stochastic dynamics of nanoparticles at the molecular level. We also plan to perform stochastic dynamics simulations with the Generalized Langevin equation formalism. Overall, this approach will be employed to study nanoparticles in solution and deposited over substrates. (AU)

Scientific publications

(5)

(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)

OLIVEIRA, GUILHERME H.; GALANTE, MIGUEL T.; MARTINS, THALYTA T.; DOS SANTOS, LEONARDO F. L. S.; ELY, FERNANDO; LONGO, CLAUDIA; GONCALVES, RENATO V.; MUNIZ, SERGIO R.; NOME, RENE A.. Real time single TiO2 nanoparticle monitoring of the photodegradation of methylene blue. Solar Energy, v. 190, p. 239-245, SEP 15 2019. (16/23430-9, 13/07276-1, 17/11986-5)

OLIVEIRA, GUILHERME H.; NOME, RENE A.. Integrating ultrafast and stochastic dynamics studies of Brownian motion in molecular systems and colloidal particles. CURRENT OPINION IN COLLOID & INTERFACE SCIENCE, v. 44, p. 208-219, DEC 2019. (19/00290-5, 17/11986-5, 16/23430-9)

FERBONINK, G. F.; RODRIGUES, T. S.; DOS SANTOS, D. P.; CAMARGO, P. H. C.; ALBUQUERQUE, R. Q.; NOME, R. A.. Correlating structural dynamics and catalytic activity of AgAu nanoparticles with ultrafast spectroscopy and all-atom molecular dynamics simulations. FARADAY DISCUSSIONS, v. 208, p. 269-286, AUG 1 2018. (15/21366-9, 15/26308-7, 16/23430-9)

NOME, RENE A.; COSSIO, PILAR. Editorial: Integrating Timescales From Molecules Up. RONTIERS IN CHEMISTR, v. 9, p. 2-pg., 2021-04-13. (19/00290-5, 17/11986-5, 19/23307-0, 16/23430-9, 19/27471-0)

OLIVEIRA, GUILHERME H.; FERREIRA, FLAVIA S.; FERBONINK, GUILHERME F.; BELANCON, MARCOS P.; SIGOLI, FERNANDO A.; NOME, RENE A.. Femtosecond laser induced luminescence in hierarchically structured Nd-III, Yb-III, Er-III co-doped upconversion nanoparticles: Light-matter interaction mechanisms from experiments and simulations. Journal of Luminescence, v. 234, JUN 2021. (14/50906-9, 13/22127-2, 16/23430-9)