New type of borneol-based fluorine-free superhydrophobic antibacterial polymeric coating

ABSTRACT

A new type of superhydrophobic borneol-based polymeric coating has been prepared. The chemical composition of the polymer particles was analyzed by Fourier transform infrared spectroscopy and X-ray photoelectron spectroscopy, which showed that the polymer did not contain fluorine, which can effectively avoid the cytotoxic risk of fluorine. By dynamic light scattering, scanning electron microscopy, and static contact angle measurement, the contact angle of the prepared coating gradually increased with increasing diameter of the polymer particles, and a superhydrophobic coating surface was finally obtained. Interestingly, after dissolving the superhydrophobic sample with tetrahydrofuran and making it a normal hydrophobic sample, the antiadhesion performance for E. coli was greatly reduced, and it could not effectively prevent E. coli adhesion. In addition, a long-term antiadhesion study of bacteria was performed. The superhydrophobic borneol-based polymer coating showed long-term resistance to E. coli adhesion. Therefore, the excellent antibacterial properties and cell compatibility mean that this series of polymer materials has great potential in the field of biomedicine.

KEYWORDS:

• Borneol
• superhydrophobic
• fluorine-free
• durable
• antibacterial adhesion

Acknowledgments

This work was financially supported by the Science and Technology Research Projects of Lishui sci tech bureau (No. 2020GYX02).

Conflicts of Interest

The authors declare no competing financial interest

Disclosure statement

No potential conflict of interest was reported by the author(s).

Data availability

The raw/processed data required to reproduce these findings can’t be shared at this time as the data also forms part of an ongoing study.

Additional information

Funding

This work was supported by the the Science and Technology Research Projects of Lishui sci tech bureau [No. 2020GYX02].