Journal
COATINGS
Volume 10, Issue 10, Pages -Publisher
MDPI
DOI: 10.3390/coatings10100982
Keywords
tunable superhydrophobic; anti-biofouling surface; antibacterial property; aluminum
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Funding
- Fonds de recherche du Quebec-Nature et technologies (FRQNT) [2018-LU-210883]
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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.
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