Dual-function polymer-based antifog and antibacterial coating for endoscopic applications

Sivakumar Bose; Byeong-Il Lee; Hyun Wook Kang

doi:10.1117/12.3002046

12 March 2024 Dual-function polymer-based antifog and antibacterial coating for endoscopic applications

Sivakumar Bose, Byeong-Il Lee, Hyun Wook Kang

Proceedings Volume 12817, Advanced Photonics in Urology 2024; 128170O (2024) https://doi.org/10.1117/12.3002046
Event: SPIE BiOS, 2024, San Francisco, California, United States

Conference Poster

Abstract

When light is scattered, fog forms over transparent surfaces, causing blurry vision. This could pose a problem for clinical applications, particularly with endoscopes. Predicting the clinical result during diagnosis can be challenging due to blurry vision in the image. The diagnosis of gastrointestinal disorders, including colon illnesses, may be enhanced by the development of high-resolution, fog-free endoscopes. There hasn't been much research done in this field, though. Transparent surfaces with dual-purpose antibacterial and antifog coatings have several uses in the medical field. Coatings having such dual functional characteristics have been the subject of relatively few reported studies. In this work, a dip coating technique was used to manufacture the Fe-doped tannic acid (TA-Fe) integrated polyvinyl alcohol (PVA) coating (TA-Fe@ PVA) with antibacterial and antifogging capabilities. SEM and UV-visible spectroscopy were used to characterize the produced coating, and then its antibacterial, antifogging, and biocompatibility properties were assessed. The transmission spectra for the TA-Fe@PVA coating (>95%) demonstrate good transparency in the visible region (370 to 700nm), suggesting that it can be used in antifogging applications. The bacterial suspensions against S. aureus and E. coli may be effectively reduced by the presence of TA-Fe in the PVA. The hydroxyl group in PVA allowed for the realization of the antifogging performance. Furthermore, the coating exhibited favorable cytotoxicity behavior. According to the preliminary study results, the produced coating shows promise for use in endoscopic applications.

Citation Download Citation

Sivakumar Bose, Byeong-Il Lee, and Hyun Wook Kang "Dual-function polymer-based antifog and antibacterial coating for endoscopic applications", Proc. SPIE 12817, Advanced Photonics in Urology 2024, 128170O (12 March 2024); https://doi.org/10.1117/12.3002046

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