TY - GEN
T1 - Characteristics and bioactivity of CaP porous coating with bio-inspired dopamine
AU - Liu, Yen Ting
AU - Kung, Kuan Chen
AU - Lee, Tzer Min
AU - Lui, Truan Sheng
N1 - Copyright:
Copyright 2020 Elsevier B.V., All rights reserved.
PY - 2013
Y1 - 2013
N2 - Implants made of titanium and its alloys are widely used in dental and orthopedic fields due to their excellent chemical stability and mechanical properties. However, due to the bio-inert properties of titanium and its alloys, it is difficult to achieve a chemical bond with bone tissue and to form a new bond on the surface. To improve biocompatibility, surface treatments are often used to modify the chemical and morphological properties. Besides, the mussel-inspired molecule of 3,4-dihydroxy-L-phenylalanine (dopamine) shows excellent biological responses. The aim of this study is to investigate the physicochemical and biomedical properties of CaP porous coating with dopamine. The CaP porous coating was prepared on titanium by micro-arc oxidation, and then bio-inspired molecular of dopamine modified surface to improve the cell behavior. Characteristics of the morphology, chemical composition, and interfacial properties of dopamine-functionalized CaP porous architecture was performed by scanning electron microscopy (SEM) and X-ray photoelectron spectroscopy (XPS). The osteoblastic cell behaviour, such as differentiation and morphology is evaluated. The nitrogen signal in XPS spectrum was indicated that the dopamine existed in the porous coating. The anatase and rutile phases of porous coating with dopamine were identified. Morphologies of porous coating with dopamine showed the uniform and three-dimensional structure. Cell culture experiments demonstrate that the porous coating with dopamine would improve cell behavior. All findings in this study indicated that CaP porous coating with dopamine have good bioactivity for clinical applications.
AB - Implants made of titanium and its alloys are widely used in dental and orthopedic fields due to their excellent chemical stability and mechanical properties. However, due to the bio-inert properties of titanium and its alloys, it is difficult to achieve a chemical bond with bone tissue and to form a new bond on the surface. To improve biocompatibility, surface treatments are often used to modify the chemical and morphological properties. Besides, the mussel-inspired molecule of 3,4-dihydroxy-L-phenylalanine (dopamine) shows excellent biological responses. The aim of this study is to investigate the physicochemical and biomedical properties of CaP porous coating with dopamine. The CaP porous coating was prepared on titanium by micro-arc oxidation, and then bio-inspired molecular of dopamine modified surface to improve the cell behavior. Characteristics of the morphology, chemical composition, and interfacial properties of dopamine-functionalized CaP porous architecture was performed by scanning electron microscopy (SEM) and X-ray photoelectron spectroscopy (XPS). The osteoblastic cell behaviour, such as differentiation and morphology is evaluated. The nitrogen signal in XPS spectrum was indicated that the dopamine existed in the porous coating. The anatase and rutile phases of porous coating with dopamine were identified. Morphologies of porous coating with dopamine showed the uniform and three-dimensional structure. Cell culture experiments demonstrate that the porous coating with dopamine would improve cell behavior. All findings in this study indicated that CaP porous coating with dopamine have good bioactivity for clinical applications.
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U2 - 10.4028/www.scientific.net/KEM.529-530.233
DO - 10.4028/www.scientific.net/KEM.529-530.233
M3 - Conference contribution
AN - SCOPUS:84871294540
SN - 9783037855171
T3 - Key Engineering Materials
SP - 233
EP - 236
BT - Bioceramics 24
PB - Trans Tech Publications Ltd
T2 - 24th Symposium and Annual Meeting of International Society for Ceramics in Medicine, ISCM 2012
Y2 - 21 October 2012 through 24 October 2012
ER -