A tattoo-inspired electrosynthesized polypyrrole film: crossing the line toward a highly adherent film for biomedical implant applications

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dc.contributor.authorBorges, M. H.R.
dc.contributor.authorNagay, B. E.
dc.contributor.authorCosta, R. C.
dc.contributor.authorSacramento, C. M.
dc.contributor.authorRuiz, K. G.
dc.contributor.authorLanders, R.
dc.contributor.authorvan den Beucken, J. J.J.P.
dc.contributor.authorFortulan, C. A.
dc.contributor.authorRangel, E. C. [UNESP]
dc.contributor.authorda Cruz, N. C. [UNESP]
dc.contributor.authorBarão, V. A.R.
dc.contributor.institutionUniversidade Estadual de Campinas (UNICAMP)
dc.contributor.institutionRadboud University Medical Center
dc.contributor.institutionUniversidade de São Paulo (USP)
dc.contributor.institutionUniversidade Estadual Paulista (UNESP)
dc.date.accessioned2023-03-02T09:49:12Z
dc.date.available2023-03-02T09:49:12Z
dc.date.issued2022-12-01
dc.description.abstractPolypyrrole (PPy) films have demonstrated promising application for implants due to their unique topographical and electronic properties. However, the limited PPy adhesiveness to metallic surfaces remains a challenge. Consequently, we propose a two-step technique for the surface modification of titanium (Ti) via a plasma electrolytic oxidation (PEO) step to serve as mechanical interlocking for the subsequent deposition of a highly adherent PPy film (PEO + PPy). Ti discs with machined and PEO-modified surfaces were used as controls. For the experimental groups, PPy film was deposited onto such surfaces by electrodeposition. Then, the role of machined and PEO surfaces in the synthesis, conductivity, microstructure, mechanical, electrochemical, microbiological, and biological properties of the PPy film was investigated. The results showed that a highly adherent “tattoo-inspired” PPy thin film was successfully achieved when the Ti surface was pretreated via PEO. PEO + PPy enhanced Ti mechanical and tribological properties by inducing a lower friction coefficient and wear loss due to the cushion effect of PPy film, besides promoting higher corrosion resistance. The “cauliflower-like” morphology of the PPy favored protein adsorption, calcium phosphate growth and demonstrated cell biocompatibility. The association between PEO and PPy film can be considered bioactive and is promising for the triggering of superior long-term stability of biomedical implants.en
dc.description.affiliationDepartment of Prosthodontics and Periodontology Piracicaba Dental School University of Campinas (UNICAMP), Av. Limeira, 901, São Paulo
dc.description.affiliationInstitute of Physics Gleb Wataghin University of Campinas (UNICAMP) Cidade Universitária Zeferino Vaz, Arão Geraldo, São Paulo
dc.description.affiliationRegenerative Biomaterials Dentistry Radboud University Medical Center, 6500 HB Nijmegen
dc.description.affiliationDepartment of Mechanical Engineering University of São Paulo (USP), Trabalhador São Carlense, 400, São Carlos
dc.description.affiliationLaboratory of Technological Plasmas Institute of Science and Technology São Paulo State University (UNESP), Av. Três de Março, 511, São Paulo
dc.description.affiliationUnespLaboratory of Technological Plasmas Institute of Science and Technology São Paulo State University (UNESP), Av. Três de Março, 511, São Paulo
dc.description.sponsorshipASCRS Research Foundation
dc.description.sponsorshipCoordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)
dc.description.sponsorshipConselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)
dc.description.sponsorshipFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
dc.description.sponsorshipUniversidade Estadual de Campinas
dc.identifierhttp://dx.doi.org/10.1016/j.mtchem.2022.101095
dc.identifier.citationMaterials Today Chemistry, v. 26.
dc.identifier.doi10.1016/j.mtchem.2022.101095
dc.identifier.issn2468-5194
dc.identifier.scopus2-s2.0-85135806851
dc.identifier.urihttp://hdl.handle.net/11449/242139
dc.language.isoeng
dc.relation.ispartofMaterials Today Chemistry
dc.sourceScopus
dc.subjectCorrosion
dc.subjectDental implants
dc.subjectPPy
dc.subjectSurface treatment
dc.subjectTitanium
dc.titleA tattoo-inspired electrosynthesized polypyrrole film: crossing the line toward a highly adherent film for biomedical implant applicationsen
dc.typeArtigo
unesp.author.orcid0000-0002-4927-0779[2]
unesp.author.orcid0000-0001-5879-9095[5]
unesp.author.orcid0000-0001-7909-190X[9]

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