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Open AccessCommunication

Tunable Superhydrophobic Aluminum Surfaces with Anti-Biofouling and Antibacterial Properties

Department of Applied Science, Aluminum Research Center REGAL, University of Quebec at Chicoutimi, Chicoutimi, QC G7H 2B1, Canada
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Coatings 2020, 10(10), 982; https://doi.org/10.3390/coatings10100982
Received: 10 September 2020 / Revised: 7 October 2020 / Accepted: 12 October 2020 / Published: 15 October 2020
(This article belongs to the Section Bioactive Coatings and Biointerfaces)
Surfaces in a hygiene critical environment can become potential reservoirs for transmission of pathogenic infections. Engineering surfaces with the tunable anti-biofouling and antibacterial properties could reduce infections particularly in hospitals and public transport hubs. In the present work, a facile two-step process has been deployed to fabricate a superhydrophobic and antibacterial aluminum surface by chemical etching, followed by passivation with low surface energy octyltriethoxysilane (OTES) molecules. The wettability and antibacterial properties of the OTES passivated aluminum was monotonically tuned by adding quaternary ammonium (QUATs) molecules. An anti-biofouling property of 99.9% against Staphylococcus aureus, 99% against Pseudomonas aeruginosa and 99% against E. coli bacteria, was achieved. View Full-Text
Keywords: tunable superhydrophobic; anti-biofouling surface; antibacterial property; aluminum tunable superhydrophobic; anti-biofouling surface; antibacterial property; aluminum
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MDPI and ACS Style

Agbe, H.; Sarkar, D.K.; Chen, X.-G. Tunable Superhydrophobic Aluminum Surfaces with Anti-Biofouling and Antibacterial Properties. Coatings 2020, 10, 982.

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