CV Lattes
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Universidade Federal do ABC (UFABC). Centro de Ciências Naturais e Humanas (CCNH) (Institutional affiliation from the last research proposal) Birthplace: Brazil
graduate at Odontology from Universidade de Taubaté (1984), graduate at Licenciatura Em Ciências Biológicas from Universidade de Taubaté (1989) and ph.d. at Biochemistry from Universidade de São Paulo (1995). Has experience in Byophysics, acting on the following subjects: cytochrome c, citocromo c, liposomes, singlet oxygen and radicais livres. (Source: Lattes Curriculum)
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Research in the field of Materials Science has advanced enormously in recent years, from an essentially applied, engineering-related approach to a position where it has great impact in other areas, including Physics, Chemistry, and Biology. This is mostly due to the advancement of theoretical and experimental techniques that have allowed us to probe, and interact with matter at the atomic…
A presente proposta visa financiamento para o a quinta edição do simpósio organizado pelo Programa de Pós-Graduação em Nanociências e Materiais Avançados da UFABC. Essa edição ocorrerá no Campus Santo André da UFABC, mas contará com participantes externos de modo a incentivar as interações não apenas entre os pesquisadores do Programa mas também com outros centros de excelência. Nesse eve…
Nanoscience and nanotechnology study the production, manipulation and applications of materials at the nanometric and atomic scale. The nanostructures have peculiar properties due to their size. Nanoparticles and other metallic nanostructures involve, at least in one dimension, tens to hundreds of tens of metal atoms which have very different characteristics in this arrangement in compari…
(Only some records are available in English at this moment)
Different solvent properties like polarity and hydrogen bonds could affect the behavior of the thiazinic dye methylene blue (MB) in solutions. Our group's research, along with others, has demonstrated that the dye properties change significantly when it aggregates or associates with micelles, nanoparticles, films, or different solvents, impacting its applications. Initially, during the Th…
Methylene blue and other thiazine dyes have relevance in a variety of applications covering the biological, materials, bioelectronics, and energy fields. Previous and ongoing studies in our laboratory have shown that the aggregate states of thiazine compounds acquire the property of stabilizing photochemically generated radical species. In the case of methylene blue, the stabilization of …
Biomolecules are useful for the green synthesis, stabilization, and mediation of the redox processes of metallic nanostructures, oxides, and materials with properties of topological insulators. Previous studies conducted by our group has shown two types of interactions of biomolecules with nanostructures. The redox center of cytochrome C, ferroprotoporphyrin IX, can act as electron accept…
Cell proteins undergoes turnover by means of digestion and the resulting amino acids are used for synthesis of new proteins. However, the digestion of proteins in cells generates peptides which, in specific cases, have signaling function and may lead to changes in the profile of gene expression and gene silencing. The cell degestion of proteins can occur in the proteassomes that degradate…
(Only some records are available in English at this moment)
Metal nanoparticles exhibit a property known as localized surface plasmon resonance (LSPR) that leads to very strong visible light-matter interactions. When these nanomaterials are synthesized with a chiral morphology, the introduced asymmetry enables selective interaction with left- or right-circularly polarized light. Chiral metal nanoparticles, at the forefront of nanotechnology, offer…
Methylene blue and other phenothiazinic dyes have relevance in various applications in biology, materials, bioelectronics, and energy fields. Previous and ongoing studies in our laboratory have shown that the aggregate states of phenothiazines modulate these dyes' photophysics and photochemistry, favoring the stabilization of cation radicals produced by the type I mechanism. Particularly …
The present project proposes to investigate the CISS (Chiral Induced Spin Selectivity) effect of the heme protein, cytochrome c, in the electron transport of semiconductors devices. Cytochrome c Fe(III) is photo-reduced by semiconductors such as hematite, zinc oxide, and titania materials. Also, electrochemical studies showed that cytochrome c provided an extremely high spin selectivity o…