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Verlagsausgabe
DOI: 10.5445/IR/1000085296
Veröffentlicht am 14.08.2018
Originalveröffentlichung
DOI: 10.1088/1757-899X/358/1/012034

Bacterial Adhesion on the Titanium and Stainless-Steel Surfaces Undergone Two Different Treatment Methods: Polishing and Ultrafast Laser Treatment

Chik, N.; Wan Md Zain, W. S.; Mohamad, A. J.; Sidek, M. Z.; Wan Ibrahim, W. H.; Reif, A.; Rakebrandt, J. H.; Pfleging, W.; Liu, X.

Abstract:
Bacterial adhesion has become a significant problem in many industries causing billions of dollars for its complicated removal treatment and maintenance. In this study, metal surfaces undergone treatment with ultrafast laser with varies power. The microstructure produced on its original surfaces were expected to prevent the adhesion of Escherichia coli (E. coli) ATCC 8739 and Staphylococcus aureus (S. aureus) ATCC 6838. The laser treatment was performed at 380 fs pulse duration, 515 µm central wavelength and a repetition rate of 200 kHz. Stainless steel AISI 316L was treated with an average laser power of 0.04 W (SS-0.04) and 0.11 W (SS-0.11), while Grade 5 titanium alloy was tested with high laser power 0.11 W (T-0.11). The adhesion was observed after 16 hours and the number of adhering bacteria was counted per cm2. The result achieved shows that, increasing the average laser power is leading to an enhanced S. aureus adhesion while E. coli adhesion is reduced which is due to the hydrophobicity interaction and difference in surface texture. Meanwhile, the laser treatment showed significant reduction of the bacterial adhesion on its ... mehr


Zugehörige Institution(en) am KIT Institut für Angewandte Materialien - Angewandte Werkstoffphysik (IAM-AWP)
Publikationstyp Zeitschriftenaufsatz
Jahr 2018
Sprache Englisch
Identifikator ISSN: 1757-8981, 1757-899X
URN: urn:nbn:de:swb:90-852964
KITopen ID: 1000085296
HGF-Programm 37.01.02; LK 01
Erschienen in IOP conference series / Materials science and engineering
Band 358
Seiten Article 012034
Projektinformation FabSurfWAR (EU, H2020, 644971)
Bemerkung zur Veröffentlichung 3rd International Conference on Global Sustainability and Chemical Engineering (ICGSCE), Putrajaya, MAL, February 15-16, 2017
Vorab online veröffentlicht am 22.05.2018
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