Development of biomimetic NiTi Alloy: influence of thermo-chemical treatment on the physical, mechanical and biological behavior

A bioactive layer, free of nickel, has been performed for its greater acceptability and reliability in clinical applications for NiTi shape memory alloys. In the first step, a safe barrier against Ni release has been produced on the surface by means of a thicker rutile/anastase protective layer free...

Full description

Bibliographic Details
Authors: Rupérez, Elisa, Manero, José María, Bravo-González, Luis Alberto, Espinar-Escalona, E., Gil, Francisco Javier
Format: article
Status:Published version
Publication Date:2016
Country:España
Institution:Universidad de Sevilla (US)
Repository:idUS. Depósito de Investigación de la Universidad de Sevilla
OAI Identifier:oai:idus.us.es:11441/78597
Online Access:https://hdl.handle.net/11441/78597
https://doi.org/10.3390/ma9060402
Access Level:Open access
Keyword:Bioactivity
NiTi alloy
Superelasticity
Shape memory effect
Biomimetic surfaces
id ES_4dbf99e2dbe0d7358cbe0a62239ea77c
oai_identifier_str oai:idus.us.es:11441/78597
network_acronym_str ES
network_name_str España
repository_id_str
spelling Development of biomimetic NiTi Alloy: influence of thermo-chemical treatment on the physical, mechanical and biological behaviorRupérez, ElisaManero, José MaríaBravo-González, Luis AlbertoEspinar-Escalona, E.Gil, Francisco JavierBioactivityNiTi alloySuperelasticityShape memory effectBiomimetic surfacesA bioactive layer, free of nickel, has been performed for its greater acceptability and reliability in clinical applications for NiTi shape memory alloys. In the first step, a safe barrier against Ni release has been produced on the surface by means of a thicker rutile/anastase protective layer free of nickel. In the second step, a sodium alkaline titanate hydrogel, which has the ability to induce apatite formation, has been performed from oxidized surface. An improvement of host tissue–implant integration has been achieved in terms of Ni ions release and the bioactivity of the treated NiTi alloys has been corroborated with both in vitro and in vivo studies. The transformation temperatures (As, Af, Ms, and Mf), as well as the critical stresses (σβ⇔M), have been slightly changed due to this surface modification. Consequently, this fact must be taken into account in order to design new surface modification on NiTi implants.MDPI AGEstomatología2016info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfapplication/pdfhttps://hdl.handle.net/11441/78597https://doi.org/10.3390/ma9060402reponame:idUS. Depósito de Investigación de la Universidad de Sevillainstname:Universidad de Sevilla (US)InglésMaterials, 9 (6)https://doi.org/10.3390/ma9060402info:eu-repo/semantics/openAccessoai:idus.us.es:11441/785972026-06-17T12:51:07Z
dc.title.none.fl_str_mv Development of biomimetic NiTi Alloy: influence of thermo-chemical treatment on the physical, mechanical and biological behavior
title Development of biomimetic NiTi Alloy: influence of thermo-chemical treatment on the physical, mechanical and biological behavior
spellingShingle Development of biomimetic NiTi Alloy: influence of thermo-chemical treatment on the physical, mechanical and biological behavior
Rupérez, Elisa
Bioactivity
NiTi alloy
Superelasticity
Shape memory effect
Biomimetic surfaces
title_short Development of biomimetic NiTi Alloy: influence of thermo-chemical treatment on the physical, mechanical and biological behavior
title_full Development of biomimetic NiTi Alloy: influence of thermo-chemical treatment on the physical, mechanical and biological behavior
title_fullStr Development of biomimetic NiTi Alloy: influence of thermo-chemical treatment on the physical, mechanical and biological behavior
title_full_unstemmed Development of biomimetic NiTi Alloy: influence of thermo-chemical treatment on the physical, mechanical and biological behavior
title_sort Development of biomimetic NiTi Alloy: influence of thermo-chemical treatment on the physical, mechanical and biological behavior
dc.creator.none.fl_str_mv Rupérez, Elisa
Manero, José María
Bravo-González, Luis Alberto
Espinar-Escalona, E.
Gil, Francisco Javier
author Rupérez, Elisa
author_facet Rupérez, Elisa
Manero, José María
Bravo-González, Luis Alberto
Espinar-Escalona, E.
Gil, Francisco Javier
author_role author
author2 Manero, José María
Bravo-González, Luis Alberto
Espinar-Escalona, E.
Gil, Francisco Javier
author2_role author
author
author
author
dc.contributor.none.fl_str_mv Estomatología
dc.subject.none.fl_str_mv Bioactivity
NiTi alloy
Superelasticity
Shape memory effect
Biomimetic surfaces
topic Bioactivity
NiTi alloy
Superelasticity
Shape memory effect
Biomimetic surfaces
description A bioactive layer, free of nickel, has been performed for its greater acceptability and reliability in clinical applications for NiTi shape memory alloys. In the first step, a safe barrier against Ni release has been produced on the surface by means of a thicker rutile/anastase protective layer free of nickel. In the second step, a sodium alkaline titanate hydrogel, which has the ability to induce apatite formation, has been performed from oxidized surface. An improvement of host tissue–implant integration has been achieved in terms of Ni ions release and the bioactivity of the treated NiTi alloys has been corroborated with both in vitro and in vivo studies. The transformation temperatures (As, Af, Ms, and Mf), as well as the critical stresses (σβ⇔M), have been slightly changed due to this surface modification. Consequently, this fact must be taken into account in order to design new surface modification on NiTi implants.
publishDate 2016
dc.date.none.fl_str_mv 2016
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv https://hdl.handle.net/11441/78597
https://doi.org/10.3390/ma9060402
url https://hdl.handle.net/11441/78597
https://doi.org/10.3390/ma9060402
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv Materials, 9 (6)
https://doi.org/10.3390/ma9060402
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
application/pdf
dc.publisher.none.fl_str_mv MDPI AG
publisher.none.fl_str_mv MDPI AG
dc.source.none.fl_str_mv reponame:idUS. Depósito de Investigación de la Universidad de Sevilla
instname:Universidad de Sevilla (US)
instname_str Universidad de Sevilla (US)
reponame_str idUS. Depósito de Investigación de la Universidad de Sevilla
collection idUS. Depósito de Investigación de la Universidad de Sevilla
repository.name.fl_str_mv
repository.mail.fl_str_mv
_version_ 1869407712182272000
score 15.300719

Similar Items