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  4. Innovative Polymeric Coatings with Dual Antifouling and Light-Activated Bactericidal Functions for Urinary Catheter Applications
 
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Innovative Polymeric Coatings with Dual Antifouling and Light-Activated Bactericidal Functions for Urinary Catheter Applications

Journal
Polymers
Journal Volume
16
Journal Issue
21
Start Page
2974
ISSN
2073-4360
Date Issued
2024-10
Author(s)
Po-Hsun Chen
Guan-Hua Chen
WEI-BOR TSAI  
DOI
10.3390/polym16212974
DOI
10.3390/polym16212974
URI
https://www.scopus.com/record/display.uri?eid=2-s2.0-85208554614&origin=resultslist
https://scholars.lib.ntu.edu.tw/handle/123456789/723358
Abstract
Catheter-associated urinary tract infections (CAUTIs) present significant health risks in medical settings, necessitating innovative solutions to prevent bacterial colonization on catheter surfaces. This study introduces a novel polymeric coating with dual antifouling and light-activated bactericidal properties to enhance the bactericidal efficacy of urinary catheters. The coatings were synthesized using a one-step process involving pyrogallol chemistry to deposit a copolymer composed of zwitterionic sulfobetaine for antifouling and sodium copper chlorophyllin, a photosensitizer that generates reactive oxygen species under light exposure to effectively kill bacteria. We evaluated the antifouling properties, cytocompatibility, and bactericidal performance of the coatings under various light conditions. The results showed significant reductions in bacterial adhesion, with light activation further endowing the catheter with bactericidal effects. Additionally, light could be delivered through an optical fiber within the catheter lumen to target and kill bacteria. The innovative coating using light-activated bactericidal action offers a promising approach to preventing CAUTIs, representing a potential breakthrough in developing safer and more effective urinary catheters.
Subjects
catheter-associated urinary tract infections
light-activated bactericidal effect
photodynamic
surface coating
zwitterionic polymer
Publisher
MDPI AG
Type
journal article

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