TY - JOUR
T1 - Improved physicochemical properties and biocompatibility of stainless steel implants by PVA/ZrO2-based composite coatings
AU - Lee, Pei Jung
AU - Ho, Chia Che
AU - Hwang, Chii Shyang
AU - Ding, Shinn Jyh
N1 - Publisher Copyright:
© 2014 Elsevier B.V.
Copyright:
Copyright 2020 Elsevier B.V., All rights reserved.
PY - 2014/11/15
Y1 - 2014/11/15
N2 - The aim of this study was to improve the physicochemical properties and biocompatibility of stainless steel used in medical applications. Polyvinyl alcohol (PVA) was added to a zirconium oxynitrate solution to form a polymer complex solution, which was then coated on the stainless steel substrates and heat treated to produce a thin film. The samples were characterized using various surface analysis techniques, electrochemical corrosion experiments, and biocompatibility assays. The results indicated that the amorphous PVA/ZrO2-based composite coatings were dense and uniform structure featured with few defects. Increased PVA contents yielded higher film thicknesses, which were correlated with the resulting solution viscosities. The PVA/ZrO2-based composite coatings on stainless steel substrates resulted in enhanced corrosion protection and displayed excellent adhesion and hydrophilicity. In addition, the PVA/ZrO2-based composite coatings improved the biocompatibility of the stainless steel substrates compared with the coating without PVA. In summary, the PVA/ZrO2-based composite coatings can be considered an effective surface modification of stainless steel implants.
AB - The aim of this study was to improve the physicochemical properties and biocompatibility of stainless steel used in medical applications. Polyvinyl alcohol (PVA) was added to a zirconium oxynitrate solution to form a polymer complex solution, which was then coated on the stainless steel substrates and heat treated to produce a thin film. The samples were characterized using various surface analysis techniques, electrochemical corrosion experiments, and biocompatibility assays. The results indicated that the amorphous PVA/ZrO2-based composite coatings were dense and uniform structure featured with few defects. Increased PVA contents yielded higher film thicknesses, which were correlated with the resulting solution viscosities. The PVA/ZrO2-based composite coatings on stainless steel substrates resulted in enhanced corrosion protection and displayed excellent adhesion and hydrophilicity. In addition, the PVA/ZrO2-based composite coatings improved the biocompatibility of the stainless steel substrates compared with the coating without PVA. In summary, the PVA/ZrO2-based composite coatings can be considered an effective surface modification of stainless steel implants.
UR - http://www.scopus.com/inward/record.url?scp=84912527244&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84912527244&partnerID=8YFLogxK
U2 - 10.1016/j.surfcoat.2014.08.066
DO - 10.1016/j.surfcoat.2014.08.066
M3 - Article
AN - SCOPUS:84912527244
VL - 258
SP - 374
EP - 380
JO - Surface and Coatings Technology
JF - Surface and Coatings Technology
SN - 0257-8972
ER -