@Article{GuitiérrezBConAndTraCap:2019:HiAnPr,
author = "Guiti{\'e}rrez B., J. M. and Concei{\c{c}}{\~a}o, K{\'a}tia
and Andrade, Vitor Martins de and Trava-Airoldi, Vladimir Jesus
and Capote, G.",
affiliation = "{Universidad Nacional de Colombia} and {Universidade Federal de
S{\~a}o Paulo (UNIFESP)} and {Universidade Federal de S{\~a}o
Paulo (UNIFESP)} and {Instituto Nacional de Pesquisas Espaciais
(INPE)} and {Universidade Federal de S{\~a}o Paulo (UNIFESP)}",
title = "High antibacterial properties of DLCfilm doped with nanodiamond",
journal = "Surface and Coatings Technology",
year = "2019",
volume = "375",
pages = "395--401",
month = "Oct.",
keywords = "Diamond-like carbon, Detonation nanodiamond, Antibacterial
activity, Doped DLC.",
abstract = "DLC films are used in many applications, and nanoparticles are
being used as dopant materials in a large number of films. In this
investigation, DLC films doped with nanodiamond were deposited on
Ti6Al4V substrates. Detonation nanodiamond (DND) was stirred in
hexane with a sonicator at 750 W to obtain a suspension, which was
introduced by an evaporation process into a PECVD reactor to
produce DLC films continuously doped with nanoparticles. An
amorphous silicon interlayer was used before depositing the DLC on
the Ti6Al4V substrate. Raman spectroscopy results showed films
with hydrogen contents around 22%. A scratch test on the Ti6Al4V
alloy showed critical loads close to 19 N, and corrosion
resistance measured via potentiodynamic polarization was improved
with doped DLC over that of the bare substrate. An antibacterial
test was carried out with Gram-negative Escherichia coli, showing
antibacterial activity close to 95% 6 h after direct contact with
the film. This result suggested that DLC is an excellent material
for biomedical purposes. After 18 h of direct contact with the
doped DLC film, antibacterial activity close to 25% was observed,
which suggested that nanodiamonds are able to maintain their
antibacterial properties and produce damage to E. coli cells.",
doi = "10.1016/j.surfcoat.2019.07.029",
url = "http://dx.doi.org/10.1016/j.surfcoat.2019.07.029",
issn = "0257-8972",
language = "en",
targetfile = "guitierrez_high.pdf",
urlaccessdate = "04 jun. 2024"
}