Calcium Phosphate-Coated Titanium Alloy Implants Prepared by Radiofrequency Magnetron Sputtering: A Review

2012 ◽  
pp. 352-354
Author(s):  
Naru Shiraishi ◽  
Yuko Suzuki ◽  
Naoko Sato ◽  
Takahisa Anada ◽  
Takashi Goto ◽  
...  
Keyword(s):  
Titanium Alloy ◽  
Calcium Phosphate ◽  
Magnetron Sputtering

Effect of microstructural evolution on wettability of laser coated calcium phosphate on titanium alloy

2008 ◽  
Vol 28 (8) ◽  
pp. 1560-1564 ◽  
Author(s):  
Anil K. Kurella ◽  
Michael Z. Hu ◽  
Narendra B. Dahotre
Keyword(s):  
Titanium Alloy ◽  
Calcium Phosphate ◽  
Microstructural Evolution

125MeV Si9+ ion irradiation of calcium phosphate thin film coated by rf-magnetron sputtering technique

2011 ◽  
Vol 257 (6) ◽  
pp. 2134-2141 ◽  
Author(s):  
K. Elayaraja ◽  
M.I. Ahymah Joshy ◽  
R.V. Suganthi ◽  
S. Narayana Kalkura ◽  
M. Palanichamy ◽  
...  
Keyword(s):  
Thin Film ◽  
Calcium Phosphate ◽  
Magnetron Sputtering ◽  
Ion Irradiation ◽  
Rf Magnetron Sputtering

Calcium Phosphate Coating on Blast-Treated Titanium Implants by RF Magnetron Sputtering

2009 ◽  
Vol 631-632 ◽  
pp. 211-216 ◽  
Author(s):  
Kyosuke Ueda ◽  
Takayuki Narushima ◽  
Takashi Goto ◽  
T. Katsube ◽  
Hironobu Nakagawa ◽  
...  
Keyword(s):  
Calcium Phosphate ◽  
Magnetron Sputtering ◽  
Bonding Strength ◽  
Rf Magnetron Sputtering ◽  
Titanium Implants ◽  
Calcium Phosphate Coating ◽  
Phosphate Coating ◽  
Coating Films

Calcium phosphate coating films were fabricated on Ti-6Al-4V plates and screw-type implants with a blast-treated surface using radiofrequency (RF) magnetron sputtering and were evaluated in vitro and in vivo. Amorphous calcium phosphate (ACP) and oxyapatite (OAp) films obtained in this study could cover the blast-treated substrate very efficiently, maintaining the surface roughness. For the in vitro evaluations of the calcium phosphate coating films, bonding strength and alkaline phosphatase (ALP) activity were examined. The bonding strength of the coating films to a blast-treated substrate exceeded 60 MPa, independent of film phases except for the film after post-heat-treatment in silica ampoule. When compared with an uncoated substrate, the increase in the ALP activity of osteoblastic SaOS-2 cells on a calcium phosphate coated substrate was confirmed by a cell culture test. The removal torque of screw-type Ti-6Al-4V implants with a blast-treated surface from the femur of Japanese white rabbit increased with the duration of implantation and it was statistically improved by coating an ACP film 2 weeks after implantation. The in vitro and in vivo studies suggested that the application of the sputtered ACP film as a coating on titanium implants was effective in improving their biocompatibility with bones.

scholarly journals Alternative technique for calcium phosphate coating on titanium alloy implants

Biomatter ◽  
2014 ◽  
Vol 4 (1) ◽  
pp. e28534 ◽  
Author(s):  
Van Quang Le ◽  
Geneviève Pourroy ◽  
Andrea Cochis ◽  
Lia Rimondini ◽  
Wafa I Abdel-Fattah ◽  
...  
Keyword(s):  
Titanium Alloy ◽  
Calcium Phosphate ◽  
Calcium Phosphate Coating ◽  
Phosphate Coating ◽  
Alternative Technique

Magnetron Sputtering Deposition of Calcium Phosphate Films with Nanoscale Grain Morphology in their Surface

2006 ◽  
Vol 975 ◽  
Author(s):  
Wilfredo Otaño ◽  
Víctor M. Pantojas ◽  
Juan M. Figueroa ◽  
Darimar Hernández ◽  
Alejandro Rodríguez-Navarro
Keyword(s):  
Calcium Phosphate ◽  
Surface Morphology ◽  
Magnetron Sputtering ◽  
Deposition Time ◽  
Grain Morphology ◽  
Average Diameter ◽  
Deposition Process ◽  
Medical Implants ◽  
Sputtering Deposition ◽  
Coated Implant

ABSTRACTHydroxyapatite (HA) is a calcium phosphate mineral analogous to the mineral part of bone. This similarity makes this material bioactive and suitable to coat medical implants. However, at present, there is not a coating technique which gives the coated implant the desired properties and long life required for medical implants.In an effort to produce HA coatings with improved properties, calcium phosphate films were prepared using magnetron sputtering deposition on a silicon substrate at 600°C. Initial efforts resulted in the deposition of amorphous films with a distinctive grain-like surface morphology. The morphological grain size was studied using SEM and found that it was possible to control the average diameter value of the round shaped grains by adjusting the deposition time. Increasing the deposition time increases the mean grain diameter. EDS spectra showed the unintentional addition of carbon, iron and nickel to the samples during deposition. After eliminating the impurities, it was possible to prepare calcium phosphate films in the HA phase but without the grain-like surface morphology. These results suggested that the impurities prevented the formation of the calcium phosphate HA phase while acting as nuclei for the heterogeneous nucleation of the grains. This is an important result where the deposition process parameters can be controlled to functionalize the films in order to produce distinctive nanoscale features in the surface morphology.

scholarly journals CALCIUM PHOSPHATE GLASS-CERAMIC COATING ON A TITANIUM ALLOY

2004 ◽  
Vol 17 (0) ◽  
pp. 29-36 ◽  
Author(s):  
Toshihiro Kasuga ◽  
Masayuki Nogami ◽  
Mitsuo Niinomi ◽  
Tomokazu Hattori
Keyword(s):  
Titanium Alloy ◽  
Calcium Phosphate ◽  
Phosphate Glass ◽  
Glass Ceramic ◽  
Ceramic Coating ◽  
Glass Ceramic Coating

Enhancing Effect of Autoclaving on Bioactivity of ß-Titanium Alloy Coated with Calcium Phosphate Glass-Ceramic

2005 ◽  
Vol 284-286 ◽  
pp. 243-246 ◽  
Author(s):  
Toshihiro Kasuga ◽  
Masayuki Nogami ◽  
Mitsuo Niinomi ◽  
Tomokazu Hattori ◽  
Larry L. Hench
Keyword(s):  
Titanium Alloy ◽  
Calcium Phosphate ◽  
Simulated Body Fluid ◽  
Glass Ceramic ◽  
Body Fluid ◽  
Strong Bond ◽  
Enhancing Effect ◽  
Natural Bone ◽  
In Vivo Tests

60CaO-30P2O5-7Na2O-3TiO2 (mol%) glass-ceramic can be strongly joined with a new β-type Ti-29Nb-13Ta-4.6Zr alloy. In the present work apatite-forming ability in simulated body fluid of the glass-ceramic-coated titanium alloy was enhanced by autoclaving in water at 120°C for 1 h; surface of the autoclaved coating was completely covered with apatite after 10 days of soaking. In vivo tests showed that the glass-ceramic-coated titanium alloy after autoclaving in water makes a strong bond to natural bone.

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