Cytotoxicity of hydroxyapatite and morphology in composites with Ti

Autor:	Carlos Oldani, Mariana Paula Cid, Laura Reyna, Romina Comín, Nancy Alicia Salvatierra
Rok vydání:	2013
Předmět:	Materials science General Computer Science Scanning electron microscope chemistry.chemical_element Adhesion Osseointegration Fracture toughness chemistry visual_art Powder metallurgy Microscopy visual_art.visual_art_medium Ceramic Electrical and Electronic Engineering Composite material Titanium
Zdroj:	IEEE Latin America Transactions. 11:97-100
ISSN:	1548-0992
DOI:	10.1109/tla.2013.6502785
Popis:	Hydroxyapatite (Ca10(PO4)6(OH)2 is the material used to improve osseointegration of implants in humans. Traditionally Ti-based implant is coated with hydroxyapatite, but this presents several problems such as, low fracture toughness of hydroxyapatite, generation of interfacial cracks during the deposition step and low adhesion ceramic /metal. Furthermore some studies reported that some excellent Ti?HA bio-composites could be fabricated by the powder metallurgy (PM) technology. In present study it was investigate the cytotoxicity of coralline and bovine hydroxyapatite. Topography of Ti-HA composites obtained by powder metallurgy was evaluated by scanning electron microscopy. The results showed that HA samples analyzed did not affect cell viability. Furthermore, a good integration of HA to the matrix of Ti was observed by microscopy studies.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::8025c8d4738565d7ac338bc030bfadcd https://doi.org/10.1109/tla.2013.6502785 Zobrazit plný text záznamu