Abstract
Polyethylene terephthalate (PET) is powerless against microbial contamination, which poses a threat to human health. Thus, endowing PET with anti-adhesion surface, but without releasing germicide, is currently still a challenge. To address this issue, a menthoxytriazine modified PET (PMET) was developed based on stereochemistry strategy, through inserting the menthoxytriazine block into the chain of PET. Antibacterial adhesion test and antifungal landing test were employed to verify the anti-adhesion performances of PMET. Compared with PET, PMET possessed better anti-adhesion capacity, achieving 90.2% and 87.7% resistance to Escherichia coli (Gram-negative) and Staphylococcus aureus (Gram-positive), and a clear surface without any spores of Aspergillus niger (fungi). In-depth analysis revealed that the exposure of menthoxy group on PMET skeleton is crucial for antimicrobial adhesion, otherwise the wind of menthoxy group in the control polymer shows less effect. Furthermore, PMET has no cytotoxicity, thus showing excellent potential for enhancing the anti-adhesive surface of PET.
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