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Polycrystalline Diamond Coating of Additively Manufactured Titanium for Biomedical Applications

Version 2 2024-06-05, 11:06
Version 1 2021-06-11, 14:18
journal contribution
posted on 2024-06-05, 11:06 authored by A Rifai, N Tran, DW Lau, A Elbourne, H Zhan, AD Stacey, ELH Mayes, A Sarker, EP Ivanova, RJ Crawford, PA Tran, BC Gibson, AD Greentree, E Pirogova, K Fox
Additive manufacturing using selective laser melted titanium (SLM-Ti) is used to create bespoke items across many diverse fields such as medicine, defense, and aerospace. Despite great progress in orthopedic implant applications, such as for "just in time" implants, significant challenges remain with regards to material osseointegration and the susceptibility to bacterial colonization on the implant. Here, we show that polycrystalline diamond coatings on these titanium samples can enhance biological scaffold interaction improving medical implant applicability. The highly conformable coating exhibited excellent bonding to the substrate. Relative to uncoated SLM-Ti, the diamond coated samples showed enhanced mammalian cell growth, enriched apatite deposition, and reduced microbial S. aureus activity. These results open new opportunities for novel coatings on SLM-Ti devices in general and especially show promise for improved biomedical implants.

History

Journal

ACS Applied Materials and Interfaces

Volume

10

Pagination

8474-8484

Location

United States

ISSN

1944-8244

eISSN

1944-8252

Language

English

Publication classification

C1 Refereed article in a scholarly journal

Issue

10

Publisher

AMER CHEMICAL SOC