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Enhancement of Bioactivity of Titanium Carbonitride Nanocomposite Thin Films on Steels With Biosynthesized Hydroxyapatite

Enhancement of Bioactivity of Titanium Carbonitride Nanocomposite Thin Films on Steels With Biosynthesized Hydroxyapatite

V V Anusha Thampi, P Dhandapani, Geetha Manivasagam, B Subramanian

Int J Nanomedicine. 2015 Oct 1;10 Suppl 1(Suppl 1):107-18.

PMID: 26491312

Abstract:

Thin films of titanium carbonitride (TiCN) were fabricated by DC magnetron sputtering on medical grade steel. The biocompatibility of the coating was further enhanced by growing hydroxyapatite crystals over the TiCN-coated substrates using biologically activated ammonia from synthetic urine. The coatings were characterized using X-ray diffraction, X-ray photoelectron spectroscopy, scanning electron microscopy (SEM)-energy dispersive spectroscopy, and Raman spectroscopy. The electrochemical behavior of the coatings was determined in simulated body fluid. In addition, hemocompatibility was assessed by monitoring the attachment of platelets on the coating using SEM. The wettability of the coatings was measured in order to correlate with biocompatibility results. Formation of a coating with granular morphology and the preferred orientation was confirmed by SEM and X-ray diffraction results. The hydroxyapatite coating led to a decrease in thrombogenicity, resulting in controlled blood clot formation, hence demonstrating the hemocompatibility of the coating.

Chemicals Related in the Paper:

Catalog Number	Product Name	Structure	CAS Number	Price
AP12654863	Titanium carbonitride		12654-86-3	Price

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