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(Reference retrieved automatically from Web of Science through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

Tribocorrosion studies on diamond-like carbon film deposited by PECVD on 304 stainless steel in simulated body fluid

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Author(s):
Oliveira, S. M. M. [1] ; Barzotto, I. L. M. [1] ; Vieira, L. [1] ; Sene, A. [1] ; Radi, P. A. [1] ; Fraga, S. [2] ; Bessa, M. J. [2] ; Teixeira, J. P. [2] ; Carvalho, I. C. S. [3] ; da Silva, N. S. [3]
Total Authors: 10
Affiliation:
[1] Univ Vale Paraiba, Lab Nanotechnol & Plasma Proc, Sao Jose Dos Campos, SP - Brazil
[2] Natl Inst Hlth Dr Ricardo Jorge, Dept Environm Hlth, Porto - Portugal
[3] Univ Vale Paraiba, Lab Cell & Tissue Biol, Sao Jose Dos Campos, SP - Brazil
Total Affiliations: 3
Document type: Journal article
Source: BIOMEDICAL PHYSICS & ENGINEERING EXPRESS; v. 5, n. 4 JUL 2019.
Web of Science Citations: 0
Abstract

In this paper, a diamond-like carbon (DLC) film with a controlled content of hydrogen (20%) and carbon (80%) was deposited onto a 304 stainless steel (304SS). Tribocorrosion tests were performed following immersion in simulated body fluid (SBF) solution. The DLC film with hydrogen and carbon control decreased the SS304 corrosion susceptibility 59-fold, compared to the bare surface, improving on the corrosion protection provided by DLC reported in the literature. Debris or nanoparticles from corroded metals can cause cytotoxicity or genotoxicity towards many cells, so these possible effects were evaluated using A172 glial cells (ATCC \#CRL-1620 glioblastoma). The DLC film was not genotoxic or cytotoxic towards the glial cells. Furthermore, no cytotoxicity or genotoxicity was observed in the A172 cells after exposure to the SS304 covered with DLC film, even after 24 h of incubation, when compared to untreated cells. The methodology adopted, using a silicon interface between the DLC and the 304SS, was effective in preventing delamination of the DLC film. This report provides full information concerning methods for the production and characterisation of this DLC film. (AU)

FAPESP's process: 13/20054-8 - Studies of adhesion, proliferation and cell death in the interaction of cells with nanostructured materials
Grantee:Newton Soares da Silva
Support Opportunities: Regular Research Grants
FAPESP's process: 17/10491-2 - Production of multifunctional coatings for high performance as solid lubricant and corrosion protection for aerospace components and biomedical devices
Grantee:Lúcia Vieira
Support Opportunities: Regular Research Grants