Hybrid structure combining essential oil derivatives and polydopamine for anti-bacterial coatings

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MetadadosDescriçãoIdioma
Autor(es): dc.contributorPBS-
Autor(es): dc.contributorUniversidade do Porto-
Autor(es): dc.contributorInstitut de Recherche de Chimie Paris-
Autor(es): dc.contributorRua Dr. Roberto Frias-
Autor(es): dc.contributorUniversidade Estadual Paulista (UNESP)-
Autor(es): dc.creatorJourdainne, Nathan-
Autor(es): dc.creatorMercier, Dimitri-
Autor(es): dc.creatorCosta, Bruna-
Autor(es): dc.creatorCampos, Filipa-
Autor(es): dc.creatorMonteiro, Claudia-
Autor(es): dc.creatorCosta, Natália-
Autor(es): dc.creatorMartins, M. Cristina L.-
Autor(es): dc.creatorThébault, Pascal-
Data de aceite: dc.date.accessioned2025-08-21T16:12:18Z-
Data de disponibilização: dc.date.available2025-08-21T16:12:18Z-
Data de envio: dc.date.issued2025-04-29-
Data de envio: dc.date.issued2025-08-01-
Fonte completa do material: dc.identifierhttp://dx.doi.org/10.1016/j.colsurfb.2025.114679-
Fonte completa do material: dc.identifierhttps://hdl.handle.net/11449/305428-
Fonte: dc.identifier.urihttp://educapes.capes.gov.br/handle/11449/305428-
Descrição: dc.descriptionThe development of effective antimicrobial surfaces is crucial for reducing the risk of medical device-associated infections. This study investigates the antibacterial potential of carvacrol (CAR), a natural essential oil, after their surface immobilization onto gold (Au) substrates through a polydopamine (pDA) layer. The successful deposition and properties of each layer were characterized using ellipsometry, water contact angle (WCA) measurements, Fourier Transform Infrared Reflection-Absorption Spectroscopy (FT-IRRAS), X-ray Photoelectron Spectroscopy (XPS), and Atomic Force Microscopy (AFM). The resulting coatings displayed a thin, uniform film with smooth topography and with enhanced hydrophilicity. Antibacterial efficacy was assessed against Staphylococcus epidermidis, a relevant etiological agent in this context. The results revealed that the polydopamine-carvacrol coated surfaces (Au-pDA-CAR) exhibited a significant reduction in bacterial viability, achieving a 96 % decrease compared to unmodified gold surfaces. This was contrasted with minimal antibacterial activity from surfaces with either only polydopamine (Au-pDA) or carvacrol (Au-CAR). Live/Dead bacterial viability assays confirmed the bactericidal effect of the Au-pDA-CAR surface, demonstrating its effectiveness in killing bacteria rather than merely preventing adhesion. Our findings indicate that the pDA-CAR coating presents a promising approach for developing antimicrobial surfaces with enhanced performance against biofilm-forming pathogens. The development of this coating is an important step towards the establishment of a new technological platform capable of preventing medical device associated infections.-
Descrição: dc.descriptionCentre National de la Recherche Scientifique-
Descrição: dc.descriptionNormandie Université-
Descrição: dc.descriptionRégion Normandie-
Descrição: dc.descriptionEuropean Commission-
Descrição: dc.descriptionUniversité de Rouen-
Descrição: dc.descriptionNormandie Univ UNIROUEN INSA Rouen CNRS PBS-
Descrição: dc.descriptioni3S–Instituto de Investigação e Inovação em Saúde Universidade do Porto, Rua Alfredo Allen, 208-
Descrição: dc.descriptionINEB – Instituto de Engenharia Biomédica Universidade do Porto, Rua Alfredo Allen, 208-
Descrição: dc.descriptionPSL Research University Chimie ParisTech – CNRS Institut de Recherche de Chimie Paris, 11 rue Pierre et Marie Curie-
Descrição: dc.descriptionICBAS–Instituto de Ciências Biomédicas Abel Salazar Universidade do Porto, Rua Jorge de Viterbo Ferreira 228-
Descrição: dc.descriptionFEUP - Faculty of Engineering University of Porto Rua Dr. Roberto Frias-
Descrição: dc.descriptionUNESP - UniversidadeEstadual Paulista Faculdade de Ciências, SP-
Descrição: dc.descriptionUNESP - UniversidadeEstadual Paulista Faculdade de Ciências, SP-
Descrição: dc.descriptionEuropean Commission: 951723-
Descrição: dc.descriptionUniversité de Rouen: ANR-18-EURE-0020 XL CHEM-
Idioma: dc.languageen-
Relação: dc.relationColloids and Surfaces B: Biointerfaces-
???dc.source???: dc.sourceScopus-
Palavras-chave: dc.subjectAntibacterial surfaces-
Palavras-chave: dc.subjectCarvacrol-
Palavras-chave: dc.subjectEssential oil-
Palavras-chave: dc.subjectMedical device associated-infections-
Palavras-chave: dc.subjectPolydopamine-
Palavras-chave: dc.subjectSurface characterization-
Palavras-chave: dc.subjectSurface modification-
Título: dc.titleHybrid structure combining essential oil derivatives and polydopamine for anti-bacterial coatings-
Tipo de arquivo: dc.typelivro digital-
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