Antibiofilm Activity of PDMS/TiO Against Through Inhibited Hydrophobic Recovery

Overview

Journal ACS Omega

Publisher American Chemical Society

Specialty Chemistry

Date 2024 Oct 21

PMID 39431067

Authors

Khoi-Nguyen Nguyen

Leena Sao

Kevin Kyllo

Danitza Hernandez

Samantha Salomon

Kalp Shah

Dahyun Oh

Katy C Kao

Affiliations

Soon will be listed here.

Abstract

Coatings with antibiofilm properties are desirable for biomedical applications. Titanium dioxide (TiO) has been explored as an antimicrobial agent in materials development primarily due to it being an excellent photocatalyst. () is an emerging human fungal pathogen with known high resistance to oxidative stress. Here, we fabricated a polydimethylsiloxane/titanium dioxide (PDMS/TiO) nanocomposite coating and tested its antibiofilm activities against . The resulting nanocomposite exhibited >50% reduction in biofilm formation with 2.5 wt % TiO loading, even in the dark. Through ROS detection and surface characterization, the antibiofilm activity was attributed to the synergistic interaction of TiO nanoparticles with the PDMS matrix, which resulted in the impediment of hydrophobic recovery. This work provides a design strategy to develop antibiofilm coatings against .

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