Self-sterilizing and self-cleaning of silicone catheters coated with TiO2 photocatalyst thin films: A preclinical work
- 1 January 2001
- journal article
- research article
- Published by Wiley in Journal of Biomedical Materials Research
- Vol. 58 (1) , 97-101
- https://doi.org/10.1002/1097-4636(2001)58:1<97::aid-jbm140>3.0.co;2-8
Abstract
TiO2 photocatalysts were successfully coated on silicone catheters or medical tubes by pretreatment of the silicone surface with a sulfuric acid solution (5 M) for 3 h. The TiO2 film adhered to the silicone substrate strongly against tensile and bending stresses. On the TiO2‐coated silicone‐catheters under UV illumination, both the bleaching of methylene blue dye and the photocatalytic bactericidal effect on Escherichia coli (E. coli) cells were confirmed. Thus, this type of catheter can be sterilized and cleaned simply by irradiation with low‐intensity UV light and can, therefore, be useful in the protection from catheter‐related bacterial infections. © 2000 John Wiley & Sons, Inc. J Biomed Mater Res (Appl Biomater) 58: 97–101, 2001Keywords
This publication has 16 references indexed in Scilit:
- Kinetic Analysis of the Photocatalytic Degradation of Gas-Phase 2-Propanol under Mass Transport-Limited Conditions with a TiO2 Film PhotocatalystThe Journal of Physical Chemistry B, 1998
- Kinetics of Photocatalytic Reactions under Extremely Low-Intensity UV Illumination on Titanium Dioxide Thin FilmsThe Journal of Physical Chemistry A, 1997
- Photocatalytic bactericidal effect of TiO2 thin films: dynamic view of the active oxygen species responsible for the effectJournal of Photochemistry and Photobiology A: Chemistry, 1997
- An assessment of the ability of a silver‐releasing device to prevent bacterial contamination of urethral catheter drainage systemsBritish Journal of Urology, 1996
- Efficient TiO2 Powder and Film Photocatalysts with Rutile Crystal StructureChemistry Letters, 1996
- Decreased bacterial adherence and biofilm formation on chlorhexidine and silver sulfadiazine-impregnated central venous catheters implanted in swineCritical Care Medicine, 1995
- A large randomized clinical trial of a silver-impregnated urinary catheter: Lack of efficacy and staphylococcal superinfectionThe American Journal of Medicine, 1995
- Highly Efficient TiO2 Film Photocatalyst. Degradation of Gaseous AcetaldehydeChemistry Letters, 1994
- Efficacy of an antibiotic coated indwelling catheter: A preliminary reportJournal of Biomedical Materials Research, 1985
- Electrochemical Photolysis of Water at a Semiconductor ElectrodeNature, 1972