Electrochemical and biological characterization of coatings formed on $Ti-15Mo$ alloy by plasma electrolytic oxidation
PBN-AR
Instytucja
Wydział Inżynierii Materiałowej i Ceramiki (Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie)
Informacje podstawowe
Główny język publikacji
EN
Czasopismo
Materials Science and Engineering. C, Materials for Biological Applications
ISSN
0928-4931
EISSN
1873-0191
Wydawca
Elsevier Science BV
Rok publikacji
2014
Numer zeszytu
Strony od-do
172--181
Numer tomu
43
Link do pełnego tekstu
Identyfikator DOI
Liczba arkuszy
0.71
Autorzy
Pozostali autorzy
+ 2
Słowa kluczowe
EN
plasma electrolytic oxidation
titanium alloys
bioactive compounds
electrochemical analysis
MG-63 osteoblast-like cells
Streszczenia
Język
EN
Treść
β-Type titanium alloys are considered the future materials for bone implants. To improve the bioactivity of Ti-15Mo, the surface was modified using the plasma electrolytic oxidation (PEO) process. Tricalcium phosphate (TCP, Ca3PO4), wollastonite (CaSiO3) and silica (SiO2) were selected as additives in the anodizing bath to enhance the bioactivity of the coatings formed during the PEO process. Electrochemical analysis of the samples was performed in Ringer's solution at 37 °C. The open-circuit potential (EOCP) as a function of time, corrosion potential (ECORR), corrosion current density (jCORR) and polarization resistance (Rp) of the samples were determined. Surface modification improved the corrosion resistance of Ti-15Mo in Ringer's solution. In vitro studies with MG-63 osteoblast-like cells were performed for 1, 3 and 7 days. After 24 h, the cells were well adhered on the entire surfaces, and their number increased with increasing culture time. The coatings formed in basic solution with wollastonite exhibited better biological performance compared with the as-ground sample. © 2014 Elsevier B.V.
Cechy publikacji
original article
peer-reviewed
Inne
System-identifier
idp:084792
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