Elsevier, Thin Solid Films, (561), p. 102-107
DOI: 10.1016/j.tsf.2013.08.111
Full text: Unavailable
Metallic glasses with the disordered atomic structure have unique properties of high strength, high toughness, good corrosion and abrasion resistances. These materials are thus potentially useful for medical application. In this work, we evaluate the antibacterial property and durability of materials sputter-coated with Zr-based (Zr53Cu 33Al9Ta5) and Cu-based (Cu48Zr 42Ti4Al6) thin film metallic glasses (TFMGs). Good adhesive coating of Zr-based TFMG on the dermatome gives rise to blade sharpness improvement of ∼ 27%, substantial surface roughness reduction of ∼ 66% and smoother incised wound on the pig skin. As compared to 48.8° on the bare Si wafer, the water contact angles of 119.5° and 106.6° for Zr- and Cu-based TFMGs, respectively, reveal the hydrophobic characteristic of the coated surfaces. The bacterial adhesion of Escherichia coli and Staphylococcus aureus to both Zr- and Cu-based TFMGs is hindered to different extents. Copyright 2013 Elsevier B.V. All rights reserved.