Integrating ultrafast and stochastic dynamics studies of Brownian motion in molecular systems and colloidal particles

Autor(es)

Oliveira, Guilherme H. ^[1] ; Nome, Rene A. ^[1]

Afiliação do(s) autor(es)

^[1] State Univ Campinas UNICAMP, Inst Chem, BR-13083970 Campinas - Brazil

• Tipo de documento: Artigo de Revisão
• Fonte: CURRENT OPINION IN COLLOID & INTERFACE SCIENCE; v. 44, p. 208-219, DEC 2019.
• Citações Web of Science: 0

Resumo

Ultrafast spectroscopy and stochastic dynamics studies of chemical dynamics in solution with high resolution in both space and time have been undertaken for many years, but it is still challenging to connect fundamental knowledge obtained from stroboscopic approaches at ultrashort timescales and small length scales with that obtained by directly measuring individual particle motion at longer timescales. Therefore, it is interesting, conceptually and experimentally, to understand the similarities and differences between these two approaches to the study of chemical dynamics in condensed phase systems. We discuss recent advances in the understanding of the transition from ballistic to diffusive motion and chemical reaction rate theories and describe the significance of the findings in relation to the study of thermally activated processes at multiple time and length scales. (AU)

• Processo FAPESP: 19/00290-5 - Rotational diffusion in two-dimensional colloidal glasses
• Beneficiário: René Alfonso Nome Silva
• Modalidade de apoio: Auxílio à Pesquisa - Regular
• Processo FAPESP: 17/11986-5 - Geração e Armazenamento de Novas Energias: trazendo desenvolvimento tecnológico para o país
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• Modalidade de apoio: Auxílio à Pesquisa - Programa Centros de Pesquisa em Engenharia
• Processo FAPESP: 16/23430-9 - Explorando a dinâmica estocástica de nanomateriais
• Beneficiário: René Alfonso Nome Silva
• Modalidade de apoio: Auxílio à Pesquisa - Regular