| PHD Student
Université du Québec
Institut national de la recherche scientifique
Énergie, Matériaux et Télécommunications
1650, boulevard Lionel-Boulet
Varennes, Québec, Canada
J3X 1S2
Telephone: +1 (514) 228-6983 (alt. ext. 6806)
Fax: +1 (450) 929-8102
bendiab@emt.inrs.ca
www.emt.inrs.ca
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Development of antibacterial surfaces in the biomedical field, has a direct
impact on the prevention against of all types of infections (bacterial,
viral or parasitic), and more specifically to nosocomial infections causing
morbidity and a significant mortality in the world. According to the Centers
for Disease Control and Prevention (USA), about 99 000 of patients each
year die due to nosocomial infections against 8 000 deaths in Canada and
25 000 deaths in Europe.
Only a multidisciplinary approach taking into account the physicochemical
materials and biological aspects could develop antibacterial coatings.
Diamond-like carbon (DLC) coatings have many properties useful for biomaterial
applications. They are relatively hard, with low surface roughness and
low surface energy. It has been shown that they act as antibacterial coating.
DLC films could be prepared by various techniques including plasma enhanced
chemical vapour deposition (PECVD), chemical vapour deposition (CVD),
pulsed laser deposition (PLD), etc. The aim of this project is to obtain
DLC coatings that impede the bacterial adhesion on stainless steel surfaces
by PECVD. The technique involves plasma formation from gas species containing
the elements of the DLC and directing the deposition onto a substrate.
One of the method's advantages is the large variety of gases that could
be used such as CH4 or C2H2. By varying the deposition parameters (nature
of the gas, gas flow ratio, deposition time, etc.), film properties can
be optimized to obtain antibacterial DLC surface. Furthermore, by including
metallic ions (copper, silver, etc.) in the chemical composition of the
film the antibacterial behaviour could be improved. For surface characterization
and to investigate the film properties the following techniques will be
applied X-ray photoelectron spectroscopy (XPS), atomic force microscopy
(AFM), Raman spectroscopy, spectroscopic Ellipsometry, contact angle,
stress measurements, etc.
Curriculum Vitae
• Master in Materials Science, option Biomaterials, 2009, Institut
Galilée, Université Paris 13 (France).
•DES (Diplôme d’Etudes supérieures) in Microbiology,
2004, Faculté des sciences d’Oran (Algeria).
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