Tunable Superhydrophobic Aluminum Surfaces with Anti-Biofouling and Antibacterial Properties

Henry Agbe, Dilip Kumar Sarkar, X.-Grant Chen
2020 Coatings  
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
more » ... (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.
doi:10.3390/coatings10100982 fatcat:f4tgs7lohnd2rn63uoxvswkamm