Electrophoretic deposition of CaP-TiSiN composite coatings on 316L stainless steel: corrosion resistance and in vitro cytocompatibility.

Authors

Ahmed S Abbas, Ahmed Hafedh Mohammed, Mohammed Dakhil Abbas, Zaid Kareem, Mohammed Ali Abdulrehman, Ali M Flayyih

Published in

Journal of medical engineering & technology. Pages 1-17. Oct 07, 2026. Epub Oct 07, 2026.

Abstract

The EPD technique was used to synthesize CaP-TiSiN composite coatings on 316 L stainless steel to enhance its surface mechanical, electrochemical, and biological properties. The fabricated coatings were characterized by SEM, EDS, XRD, water contact-angle determination, Vickers microhardness test, scratch adhesion test, potentiodynamic polarization, and in vitro MTT test on MC3T3-E1 osteoblast-like cells. The CaP-TiSiN composite coating possessed a dense, relatively homogeneous microstructure with uniform distribution of the constituents. The microhardness value rose from 177.0 HV of bare 316 L to 602.4 HV of the CaP-TiSiN coating, and the scratch critical load was 18.8 N. Corrosion rate dropped from 0.00057 to 0.00007 mm/year, and the water contact angle became 54.3°, which indicates improvement in wettability. In MTT test, the CaP-TiSiN-coated samples showed maximum metabolic activity at all times, which was achieved as high as 116.3% on day 5 and significantly higher than TiSiN coating (p < 0.05) and HA coating on day 5 (p = 0.041). This suggests that EPD-synthesized CaP-TiSiN composite coatings could be employed as efficient surface modifications of 316 L stainless steel in biomedicine.

PMID:
42842457
Bibliographic data and abstract were imported from PubMed on 08 Oct 2026.

Read full publication at:
Please sign in to see all details.

Stats

1-terrible, 9-excellent. How would you rate this publication? Sign in in to submit your rating.

Post a comment

You need to be signed in to post comments. You can sign in here.

Comments

There are no comments yet.