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  • Title: Reduction of bacterial adhesion on titanium-doped diamond-like carbon coatings.
    Author: Zhao YY, Zhao B, Su X, Zhang S, Wang S, Keatch R, Zhao Q.
    Journal: Biofouling; 2018 Jan; 34(1):26-33. PubMed ID: 29334813.
    Abstract:
    A range of titanium doped diamond-like carbon (Ti-DLC) coatings with different Ti contents were prepared on stainless steel substrates using a plasma-enhanced chemical vapour deposition technique. It was found that both the electron donor surface energy and the surface roughness of the Ti-DLC coatings increased with increasing Ti contents in the coatings. Bacterial adhesion to the coatings was evaluated against Escherichia coli WT F1693 and Pseudomonas aeruginosa ATCC 33347. The experimental data showed that bacterial adhesion decreased with the increases of the Ti content, the electron donor surface energy and surface roughness of the coatings, while the bacterial removal percentage increased with the increases of these parameters. The Ti-DLC coatings reduced bacterial attachment by up to 75% and increased bacterial detachment from 15 to 45%, compared with stainless steel control.
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