TY - JOUR
T1 - Hydroxyapatite coatings electrodeposited at near-physiological conditions
AU - Metoki, N.
AU - Leifenberg-Kuznits, L.
AU - Kopelovich, W.
AU - Burstein, L.
AU - Gozin, M.
AU - Eliaz, N.
PY - 2014/3/15
Y1 - 2014/3/15
N2 - Calcium phosphate (CaP) ceramics are used in orthopedics and dentistry due to their excellent biocompatibility and osseointegration. Plasma spraying has been the most common process for application of hydroxyapatite (HAp) coatings. Although electrodeposition (ED) has many potential advantages, very little has been published on ED of HAp at near-physiological conditions. Here we report the ED of uniform HAp-OCP (octacalcium phosphate) coatings on Ti-6Al-4V substrate at 37 C, pH=7.4, following surface pretreatment. Thermodynamic calculations were first used to predict which CaP phases may precipitate from solution under different experimental conditions. Microscopic observation revealed that the coating formed in this study is similar to that formed by chemical deposition, and better mimics the biological apatites in terms of structure and phase content than coatings currently used in orthopedics.
AB - Calcium phosphate (CaP) ceramics are used in orthopedics and dentistry due to their excellent biocompatibility and osseointegration. Plasma spraying has been the most common process for application of hydroxyapatite (HAp) coatings. Although electrodeposition (ED) has many potential advantages, very little has been published on ED of HAp at near-physiological conditions. Here we report the ED of uniform HAp-OCP (octacalcium phosphate) coatings on Ti-6Al-4V substrate at 37 C, pH=7.4, following surface pretreatment. Thermodynamic calculations were first used to predict which CaP phases may precipitate from solution under different experimental conditions. Microscopic observation revealed that the coating formed in this study is similar to that formed by chemical deposition, and better mimics the biological apatites in terms of structure and phase content than coatings currently used in orthopedics.
KW - Bioceramics
KW - Electrodeposition
KW - Hydroxyapatite
KW - Near-physiological conditions
KW - Thin films
UR - http://www.scopus.com/inward/record.url?scp=84892565319&partnerID=8YFLogxK
U2 - 10.1016/j.matlet.2013.12.091
DO - 10.1016/j.matlet.2013.12.091
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AN - SCOPUS:84892565319
SN - 0167-577X
VL - 119
SP - 24
EP - 27
JO - Materials Letters
JF - Materials Letters
ER -