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Femtosecond laser surface texturing of titanium as a method to reduce the adhesion of Staphylococcus aureus and biofilm formation

2016-01Journal article Restricted access
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dc.contributor.authorCunha, Alexandre
dc.contributor.authorElie, Anne-Marie
dc.contributor.authorPlawinski, Laurent
dc.contributor.authorSerro, Ana Paula
dc.contributor.authorRego, Ana Maria Botelho do
dc.contributor.authorAlmeida, Amélia
dc.contributor.authorUrdaci, Maria C.
dc.contributor.authorDurrieu, Marie-Christine
dc.contributor.authorVilar, Rui Vilar
dc.date.accessioned2018-01-10T14:56:13Z
dc.date.available2018-01-10T14:56:13Z
dc.date.issued2016-01
dc.description.abstractThe aim of the present work was to investigate the possibility of using femtosecond laser surface texturing as a method to reduce the colonization of Grade 2 Titanium alloy surfaces by Staphylococcus aureus and the subsequent formation of biofilm. The laser treatments were carried out with a Yb:KYW chirped-pulse-regenerative amplification laser system with a central wavelength of 1030 nm and a pulse duration of 500 fs. Two types of surface textures, consisting of laser-induced periodic surface structures (LIPSS) and nanopillars, were produced. The topography, chemical composition and phase constitution of these surfaces were investigated by atomic force microscopy, scanning electron microscopy, X-ray photoelectron spectroscopy, micro-Raman spectroscopy, and X-ray diffraction. Surface wettability was assessed by the sessile drop method using water and diiodomethane as testing liquids. The response of S. aureus put into contact with the laser treated surfaces in controlled conditions was investigated by epifluorescence microscopy and scanning electron microscopy 48 h after cell seeding. The results achieved show that the laser treatment reduces significantly the bacterial adhesion to the surface as well as biofilm formation as compared to a reference polished surfaces and suggest that femtosecond laser texturing is a simple and promising method for endowing dental and orthopedic titanium implants with antibacterial properties, reducing the risk of implant-associated infections without requiring immobilized antibacterial substances, nanoparticles or coatings.pt_PT
dc.description.versioninfo:eu-repo/semantics/publishedVersionpt_PT
dc.identifier.citationAlexandre Cunha, Anne-Marie Elie, Laurent Plawinski, Ana Paula Serro, Ana Maria Botelho do Rego, Amélia Almeida, Maria C. Urdaci, Marie-Christine Durrieu, Rui Vilar, Femtosecond laser surface texturing of titanium as a method to reduce the adhesion of Staphylococcus aureus and biofilm formation, Applied Surface Science, Volume 360, Part B, 2016, Pages 485-493, ISSN 0169-4332, https://doi.org/10.1016/j.apsusc.2015.10.102pt_PT
dc.identifier.doi10.1016/j.apsusc.2015.10.102pt_PT
dc.identifier.issn0169-4332
dc.identifier.urihttp://hdl.handle.net/10400.26/20046
dc.language.isoengpt_PT
dc.peerreviewedyespt_PT
dc.publisherElsevierpt_PT
dc.relation.publisherversionhttps://doi.org/10.1016/j.apsusc.2015.10.102pt_PT
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/4.0/pt_PT
dc.subjectFemtosecond laserspt_PT
dc.subjectLaser surface texturingpt_PT
dc.subjectDental and orthopedic implantspt_PT
dc.subjectWettabilitypt_PT
dc.subjectBacteria adhesionpt_PT
dc.subjectBiofilmpt_PT
dc.titleFemtosecond laser surface texturing of titanium as a method to reduce the adhesion of Staphylococcus aureus and biofilm formationpt_PT
dc.typejournal article
dspace.entity.typePublication
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/SFRH/SFRH%2FBD%2F61002%2F2009/PT
oaire.citation.endPage493pt_PT
oaire.citation.startPage485pt_PT
oaire.citation.titleApplied Surface Sciencept_PT
oaire.citation.volume360(Part B)pt_PT
oaire.fundingStreamSFRH
project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.nameFundação para a Ciência e a Tecnologia
rcaap.embargofctPolítica de copyright do editorpt_PT
rcaap.rightsrestrictedAccesspt_PT
rcaap.typearticlept_PT
relation.isProjectOfPublication1fc0082a-8b61-4158-9a28-0e6c44995a64
relation.isProjectOfPublication.latestForDiscovery1fc0082a-8b61-4158-9a28-0e6c44995a64

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