NDLI: Biofilm formation by Staphylococcus epidermidis on nitrogen ion implanted CoCrMo alloy material.

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Biofilm formation by Staphylococcus epidermidis on nitrogen ion implanted CoCrMo alloy material.

Content Provider	Semantic Scholar
Author	Oztürk, Orhan Sudağidan, Mert Türkan, Uğur
Copyright Year	2007
Abstract	Staphylococcus epidermidis is the primary cause of medical device-related infections due to its adhesion and biofilm forming abilities on biomaterial surfaces. For this reason development of new materials and surfaces to prevent bacterial adhesion is inevitable. In this study, the adhesion of biofilm forming S. epidermidis strain YT-169a on nitrogen (N) ion implanted as well as on as-polished CoCrMo alloy materials were investigated. A medical grade CoCrMo alloy was ion implanted with 60 keV N ions to a high dose of 1.9 x 10(18) ions/cm(2) at substrate temperatures of 200 and 400 degrees C. The near-surface implanted layer crystal structures, implanted layer thicknesses, and roughnesses were characterized by XRD, SEM and AFM. The number of adherent bacteria on the surfaces of N implanted specimens was found to be 191 x 10(6) CFU/cm(2) for the 200 degrees C and 70 x 10(6) CFU/cm(2) for the 400 degrees C specimens compared to the as-polished specimen (3 x 10(6) CFU/cm(2)). The adhesion test results showed that S. epidermidis strain YT-169a adhere much more efficiently to the N implanted surfaces than to the as-polished CoCrMo alloy surface. This was attributed mainly to the rougher surfaces associated with the N implanted specimens in comparison with the relatively smooth surface of the as-polished specimen.
File Format	PDF HTM / HTML
Alternate Webpage(s)	http://physics.iyte.edu.tr/wp-content/uploads/2014/05/oozturk4.pdf
PubMed reference number	17187392v1
Volume Number	81
Issue Number	3
Journal	Journal of biomedical materials research. Part A
Language	English
Access Restriction	Open
Subject Keyword	Alloys Bacterial Adhesion Blood urea nitrogen measurement CDISC SEND Biospecimens Terminology Colony-forming unit Digital Object Identifier Implants Ions Kiloelectronvolt Medical Devices Microbial Biofilms Specimen Staphylococcus epidermidis biofilm formation
Content Type	Text
Resource Type	Article

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