Abstract
Biocompatible and corrosion resistant coatings are frequently used to protect and enhance the life time of bio-implants. TiN (titanium nitride) is being used as coating material on different surgical and orthopedic implants due to its excellent biocompatibility. TiN coatings are attractive because of low coefficient friction, high hardness, chemical inertness and smooth surface finish, which they will provide to biochemical devices. These coatings were prepared by PVD (physical Vapor deposition) technique on SS 304L plates to investigate the protein adhesion on coated stainless steel samples. The protein adhesion and growth of Bovine Albumin Serum (blood protein) on coated samples was checked. Surface of coated material and protein growth on coated material was investigated using AFM (atomic force microscope), SEM and FTIR.
Highlights
The human body contains a wonderful system, which has incorporated load-bearing mechanism having self-replicating system which is adaptable to changes in environment
Most common metals like titanium, some grades of stainless steel like 316 or 304, titanium oxide, titanium nitride, cobalt–chromium alloy, and nickel alloys have been used for different biomedical applications
Smooth and uniform TiN coating was deposited on stainless steel samples (∅ 1×1 inch), through Physical Vapor Deposition (PVD) technique
Summary
The human body contains a wonderful system, which has incorporated load-bearing mechanism having self-replicating system which is adaptable to changes in environment. For this purpose a new method is expected to fabricate human body implants which are more bio compatible and durable In this way, a material should be selected as a substrate that has improved mechanical properties showing better mechanical strength. An important approach regarding biocompatible devices was carried out by depositing layers on the surfaces which should be inert and corrosion resistant as well as adhesive to biological fluids. This is the key that the coated materials became important. In vitro bioactivity was assessed to check the adsorption behavior of bovine albumin serum with TiN coated stainless steel implants and biocompatibility evaluation was carried out
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