Oxidized nickel-titanium foams for bone reconstructions: chemical and mechanical characterization.

Oxidized nickel-titanium foams for bone reconstructions: chemical and mechanical characterization. Research Abstract Details 

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Oxidized nickel-titanium foams for bone reconstructions: chemical and mechanical characterization. Abstract Text:

Maite ,Alexandra Michiardi,Conrado Aparicio,Pablo Sevilla,Josep A Planell,Francisco Javier Gil,Maite Barrabés,Alexandra Michiardi,Conrado Aparicio,Pablo Sevilla,Josep A Planell,Francisco Javier Gil,Maite ,Alexandra Michiardi,Conrado Aparicio,Pablo Sevilla,Josep A Planell,Francisco Javier Gil,

This work examines NiTi foams that have been treated using a new oxidation treatment for obtaining Ni-free surfaces that could allow the ingrowth of living tissue, thereby increasing the mechanical anchorage of implants. A significant increase in the real surface area of these materials can decrease corrosion resistance and favour the release of Ni. This chemical degradation can induce allergic reactions or toxicity in the surrounding tissues. This study determines the porosity, surface characteristics, phase transformation, mechanical properties, corrosion behaviour and Ni release into the simulated body fluid medium of foams treated by a new surface oxidation treatment that produces Ni-free surfaces. These foams have pores in an appropriate range of sizes and interconnectivity, and thus their morphology is similar to that of bone. Their mechanical properties are biomechanically compatible with bone. The titanium oxide on the surface significantly improves corrosion resistance and decreases nickel ion release, while barely affecting transformation temperatures.

Oxidized nickel-titanium foams for bone reconstructions: chemical and mechanical characterization. Publishing Authors By Initials

M ,A Michiardi,C Aparicio,P Sevilla,JA Planell,FJ Gil,M Barrabés,A Michiardi,C Aparicio,P Sevilla,JA Planell,FJ Gil,M ,A Michiardi,C Aparicio,P Sevilla,JA Planell,FJ Gil,

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Oxidized nickel-titanium foams for bone reconstructions: chemical and mechanical characterization. Journal Published:

PUBLICATION TYPE: Journal Article

Journal: Journal of materials science. Materials in medicin

VOLUME: 18

Page Numbers: 2123-9

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ISSN: 0957-4530

DAY: 10

MONTH: 07

YEAR: 2007

Oxidized nickel-titanium foams for bone reconstructions: chemical and mechanical characterization. Information

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LANGUAGE: eng

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AFFILIATION: CREB, Departamento de Ciencia de los Materiales e Ingeniería Metalúrgica, ETSEIB, Universidad Politécnica de Cataluña, Diagonal 647, 08028, Barcelona, Spain, conrado.aparicio@upc.edu.

Country: United States

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MEDLINETA: J Mater Sci Mater Med

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