Biography

Full Professor, Physical Chemistry subject, Department of Chemistry at the State University of Maringá (retired in July/2016, currently volunteer). Visiting Professor at UTFPR, Londrina, Brazil. Full Professor at UFPI (Chemistry Department), since August/2019. Factor H = 56 (Web of Science, Scopus). Published around 300 articles in specialized journals and get around 11.000 citations in ISI, (average of around 36 / published article). Contributed with round 400 works to conferences and has published 14 book chapters. Presented around 20 plenaries/lectures on abroad events. Possesses 9 patent applications, and 03 (three) of them were granted. He is member of the Brazilian Chemical Society (SBQ) and Director of the Materials Chemistry Division at SBQ from 2004 to 2006. Member of the ABPol (Polymer Brazilian Association) Council since September/2009 being Director of ABPol in the 2013-2015, 2015-2017 and 2017-2019. Currently acts as administrations and from
2024 to 2026. Coordinator of the Materials area at CAPES, from 2018 to 2022 and full coordinator of the Materials area at CAPES, from 2023 to 2026. Member of the CA-MM (CNPq, Brazil) from October 2015 to June 2018, being coordinator of the CA-MM from June 2016 to June 2018. Currently, member (again) of the CNPq CA-MM from July 2022 to June 2025. He is a Productivity Fellow at CNPq since 1994 CA-MM committee, currently level 1A. Topics of interest: hydrogels, polymer blends, thermal analysis, polymer miscibility, electrospinning. Coordinator of of the INCT Polysaccharides (CNPq / MCTI, Brazil), from 2023 to 2028.

 

Abstract

In this presentation, some recent results obtained in the last 5 years in our research groups in the development of polymeric materials with potential application in the medical, pharmaceutical and tissue engineering areas will be presented. The materials are mainly those related to polymeric biomaterials, aiming at: i) the controlled release of drugs [1]; ii) bactericidal action [1,2]; iii) substrates for cell growth [3]; materials with virucidal action to combat the SARS-Cov 2 virus, related to the recent coronavirus pandemic, and for wound healing [4]. The polymeric materials that will be presented are prepared mainly through three-dimensional matrices (hydrogels) made from the formation of polyelectrolyte complexes between anionic/cationic polymers of chemically modified (or not) polysaccharides and through the electrospinning technique. Various methodologies for obtaining matrices of different geometries (cylindrical, spherical, irregular particles, thin films, nanofibers, etc.) of different sizes (macro, micro and nanometric scales) will be shown and discussed.

References

[1] Oliveira, R. W. G., et al., Films composed of white angico gum and chitosan containing chlorhexidine as an antimicrobial agent. Int. J. Biol. Macromol. 235, 2023, 123905, DOI: 10.1016/j.ijbiomac.2023.123905

[2] Souza, P.R, et al., Poly(ethylene terephthalate) films coated with antimicrobial gelatin/ chondroitin sulfate polyelectrolyte multilayers containing ionic liquids. Progr. Org. Coatings, 170, 2022, 106997, DOI: 10.1016/j.porgcoat.2022.106997

[3] Bonkovoski, L.C. et al., Cytocompatible drug delivery devices based on poly[(2-dimethylamino) ethyl methacrylate]/chondroitin sulfate polyelectrolyte complexes prepared in ionic liquids. J. Drug Deliv. Sci. Tech. 63, 2021 – 102520, DOI: 10.1016/j.jddst.2021.102520

[4] Cestari, M. et al., Silk fibroin nanofibers containing chondroitin sulfate and silver sulfadiazine for wound healing treatment. J. Drug Deliv. Sci. Tech. 70, 2021 – 103221, DOI: 10.1016/j.jddst.2022.103221