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Use of UV-vis absorption and fluorescence spectroscopies in the study of nanocomposites based on Melipona propolis quadrifasciata quadrifasciata and nanoargila haloisita for the development of advanced nanomaterials

Grant number: 20/09173-9
Support Opportunities:Scholarships in Brazil - Scientific Initiation
Effective date (Start): June 01, 2021
Effective date (End): May 31, 2022
Field of knowledge:Interdisciplinary Subjects
Principal Investigator:Patricia Targon Campana
Grantee:Ana Beatriz Sanches Brito
Host Institution: Escola de Artes, Ciências e Humanidades (EACH). Universidade de São Paulo (USP). São Paulo , SP, Brazil
Associated scholarship(s):21/12890-7 - Optimization of the processes for extraction and physicochemical characterization of extracts from Melipona quadrifasciata quadrifasciata (Mandaçaia) propolis for Drug Delivery Systems Development, BE.EP.IC


In the present project, we intend to investigate the photophysical behavior of propolis from stingless bee Melipona quadrifasciata quadrifasciata (Mqq). Propolis will be studied in both solution and solid state, and conjugated with haloisite nano-clay (HNT) nanotubes in different physical-chemical environments, thus enabling the further development of advanced nanomaterials for propolis controlled release. These studies require the use of physical-chemical methods, in addition to spectroscopic methods in solution that will allow not only the characterization of structural changes, but also the determination of thermodynamic parameters of the biomolecules under study. In this sense, it is proposed here the use of spectroscopic techniques of absorption and fluorescence for the photophysical characterization of propolis in different physical-chemical conditions, in the presence and absence of nano-clay.

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