Influence of gallium on the surface properties of zinc based glass polyalkenoate cements |
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| Authors: | Adel M.F. Alhalawani Lana Placek Anthony W. Wren Declan J. Curran Daniel Boyd Mark R. Towler |
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| Affiliation: | 1. Department of Biomedical Engineering, Faculty of Engineering, University of Malaya, PO Box 50603, Kuala Lumpur, Malaysia;2. Department of Mechanical & Industrial Engineering, Ryerson University, Toronto M5B 2K3, Ontario, Canada;3. Inamori School of Engineering, Alfred University, Alfred, NY, USA;4. Department of Applied Oral Sciences, Faculty of Dentistry, Dalhousie University, Halifax B3H 4R2, Canada |
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| Abstract: | This study investigates the effect of gallium (Ga) additions, substituting for zinc (Zn), on the physio-chemical surface properties of aluminium-free glass polyalkenoate cements (GPCs). Substituting Zn with Ga resulted in a significant increase in hydrophilicity and thusly wettability, as shown by a decrease in water contact angle. Increasing Ga resulted in increased Zn release, irrespective of decreasing Zn content of the starting glass. This resulted in increased antibacterial efficiency, against Escherichia coli, but not Staphylococcus epidermidis. Ga was shown to have no effect on antibacterial efficiency. |
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| Keywords: | Biomaterials Glasses Electrochemical properties Surfaces |
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