Material characterization and bacterial interaction of titanium discs produced by selective laser melting.
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| Title: | Material characterization and bacterial interaction of titanium discs produced by selective laser melting. |
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| Authors: | Petrini, M.1 (AUTHOR) morena.petrini@unich.it, Mangano, C.2 (AUTHOR), Cellini, L.3 (AUTHOR), Di Giulio, M.3 (AUTHOR), Iezzi, G.1 (AUTHOR), Piattelli, A.4,5,6,7 (AUTHOR), D'Ercole, S.8 (AUTHOR) |
| Source: | Materials Characterization. Jul2022, Vol. 189, pN.PAG-N.PAG. 1p. |
| Subjects: | Selective laser melting, Atomic force microscopy, Materials science, Surface topography, Bacterial growth |
| Abstract: | The aim of this work was to characterize at nano-, micro-, and chemical level the surface topography of two new surfaces produced in Ti6Al4V by selective laser melting (SLM) and then subjected to the electrochemical polishing (EL) and organic acids-etching (OAE). Moreover, the capability of Streptococcus oralis to form biofilm on these surfaces was also studied. In addition, the microbiological results were compared with the topographical characteristics of the surfaces. The nano-pattering of the samples was investigated with the Atomic Force Microscopy (AFM); the micro-features, before and after the bacterial growth, were evaluated by the SEM observation and the Energy Dispersive X-ray Spectrometry (EDS) analyzed the chemical composition of the upper layers. The wetting properties of the discs were also evaluated. The colony-forming units (CFUs), the bacterial biomass, and the percentage of viable and dead cells were measured after 24 h of S. oralis biofilm formation on the different discs. Organic acids-etching samples were characterized by a ripple texture, higher nano-roughness, and wettability, respecting the machined and EL ones. The SEM observations showed that EL and OAE samples had an irregular surface with respect to the machined ones. The EDS found no significant differences for the Oxygen content of the upper layers of the samples. The microbiological analysis showed a significantly lower bacterial count and biofilm biomass formation on OAE in respect to the EL and the machined samples. In particular, the S. oralis biofilm formation was inversely correlated with the nano-roughness of the samples. The process of production of the discs, turning or SLM, significantly affected the micro-roughness of the samples. On the contrary, the treatment with OAE and EL modified the nano-topography of the samples and influencing the bacterial biofilm growth. [Display omitted] • OAE samples showed the higher nano- and micro-roughness values • EL was characterized by the higher wettability • No significant differences have been found in the chemical properties of EL and OAE • OAE was characterized by lower bacterial count, biomass, and living cells [ABSTRACT FROM AUTHOR] |
| Copyright of Materials Characterization is the property of Elsevier B.V. and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.) | |
| Database: | Engineering Source |
| FullText | Text: Availability: 0 |
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| Header | DbId: egs DbLabel: Engineering Source An: 157254479 AccessLevel: 6 PubType: Academic Journal PubTypeId: academicJournal PreciseRelevancyScore: 0 |
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| Items | – Name: Title Label: Title Group: Ti Data: Material characterization and bacterial interaction of titanium discs produced by selective laser melting. – Name: Author Label: Authors Group: Au Data: <searchLink fieldCode="AR" term="%22Petrini%2C+M%2E%22">Petrini, M.</searchLink><relatesTo>1</relatesTo> (AUTHOR)<i> morena.petrini@unich.it</i><br /><searchLink fieldCode="AR" term="%22Mangano%2C+C%2E%22">Mangano, C.</searchLink><relatesTo>2</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Cellini%2C+L%2E%22">Cellini, L.</searchLink><relatesTo>3</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Di+Giulio%2C+M%2E%22">Di Giulio, M.</searchLink><relatesTo>3</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Iezzi%2C+G%2E%22">Iezzi, G.</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Piattelli%2C+A%2E%22">Piattelli, A.</searchLink><relatesTo>4,5,6,7</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22D'Ercole%2C+S%2E%22">D'Ercole, S.</searchLink><relatesTo>8</relatesTo> (AUTHOR) – Name: TitleSource Label: Source Group: Src Data: <searchLink fieldCode="JN" term="%22Materials+Characterization%22">Materials Characterization</searchLink>. Jul2022, Vol. 189, pN.PAG-N.PAG. 1p. – Name: Subject Label: Subjects Group: Su Data: <searchLink fieldCode="DE" term="%22Selective+laser+melting%22">Selective laser melting</searchLink><br /><searchLink fieldCode="DE" term="%22Atomic+force+microscopy%22">Atomic force microscopy</searchLink><br /><searchLink fieldCode="DE" term="%22Materials+science%22">Materials science</searchLink><br /><searchLink fieldCode="DE" term="%22Surface+topography%22">Surface topography</searchLink><br /><searchLink fieldCode="DE" term="%22Bacterial+growth%22">Bacterial growth</searchLink> – Name: Abstract Label: Abstract Group: Ab Data: The aim of this work was to characterize at nano-, micro-, and chemical level the surface topography of two new surfaces produced in Ti6Al4V by selective laser melting (SLM) and then subjected to the electrochemical polishing (EL) and organic acids-etching (OAE). Moreover, the capability of Streptococcus oralis to form biofilm on these surfaces was also studied. In addition, the microbiological results were compared with the topographical characteristics of the surfaces. The nano-pattering of the samples was investigated with the Atomic Force Microscopy (AFM); the micro-features, before and after the bacterial growth, were evaluated by the SEM observation and the Energy Dispersive X-ray Spectrometry (EDS) analyzed the chemical composition of the upper layers. The wetting properties of the discs were also evaluated. The colony-forming units (CFUs), the bacterial biomass, and the percentage of viable and dead cells were measured after 24 h of S. oralis biofilm formation on the different discs. Organic acids-etching samples were characterized by a ripple texture, higher nano-roughness, and wettability, respecting the machined and EL ones. The SEM observations showed that EL and OAE samples had an irregular surface with respect to the machined ones. The EDS found no significant differences for the Oxygen content of the upper layers of the samples. The microbiological analysis showed a significantly lower bacterial count and biofilm biomass formation on OAE in respect to the EL and the machined samples. In particular, the S. oralis biofilm formation was inversely correlated with the nano-roughness of the samples. The process of production of the discs, turning or SLM, significantly affected the micro-roughness of the samples. On the contrary, the treatment with OAE and EL modified the nano-topography of the samples and influencing the bacterial biofilm growth. [Display omitted] • OAE samples showed the higher nano- and micro-roughness values • EL was characterized by the higher wettability • No significant differences have been found in the chemical properties of EL and OAE • OAE was characterized by lower bacterial count, biomass, and living cells [ABSTRACT FROM AUTHOR] – Name: AbstractSuppliedCopyright Label: Group: Ab Data: <i>Copyright of Materials Characterization is the property of Elsevier B.V. and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.) |
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| RecordInfo | BibRecord: BibEntity: Identifiers: – Type: doi Value: 10.1016/j.matchar.2022.111989 Languages: – Code: eng Text: English PhysicalDescription: Pagination: PageCount: 1 StartPage: N.PAG Subjects: – SubjectFull: Selective laser melting Type: general – SubjectFull: Atomic force microscopy Type: general – SubjectFull: Materials science Type: general – SubjectFull: Surface topography Type: general – SubjectFull: Bacterial growth Type: general Titles: – TitleFull: Material characterization and bacterial interaction of titanium discs produced by selective laser melting. Type: main BibRelationships: HasContributorRelationships: – PersonEntity: Name: NameFull: Petrini, M. – PersonEntity: Name: NameFull: Mangano, C. – PersonEntity: Name: NameFull: Cellini, L. – PersonEntity: Name: NameFull: Di Giulio, M. – PersonEntity: Name: NameFull: Iezzi, G. – PersonEntity: Name: NameFull: Piattelli, A. – PersonEntity: Name: NameFull: D'Ercole, S. IsPartOfRelationships: – BibEntity: Dates: – D: 01 M: 07 Text: Jul2022 Type: published Y: 2022 Identifiers: – Type: issn-print Value: 10445803 Numbering: – Type: volume Value: 189 Titles: – TitleFull: Materials Characterization Type: main |
| ResultId | 1 |
