Self-sterilizing and self-cleaning of silicone catheters coated with TiO2 photocatalyst thin films: A preclinical work

Access to the published version may require journal subscription. Published with permission from: Elsevier.Standard set statement from the publisher: This is a PDF file of an unedited manuscript that has been accepted for publication. As a service to our customers we are providing this early version of the manuscript. The manuscript will undergo copyediting, typesetting, and review of the resulting proof before it is published in its final form. Please note that during the production process errors may be discovered which could affect the content, and all legal disclaimers that apply to the journal pertain. A C C E P T E D M A N U S C R I P T ACCEPTED MANUSCRIPT A C C E P T E D M A N U S C R I P T ACCEPTED MANUSCRIPT AbstractPresent work is devoted to investigation of structure and functional properties of hybrid nanomaterials based on the TiO 2 -modified cellulose fibers of cotton. The titania hydrosol was successfully prepared using the titanium tetraisopropoxide as precursor and the nitric acid as peptizing agent via the low-temperature sol-gel synthesis in aqueous medium and applied to cotton fabric. For cross-linking of titania nanoparticles to cotton the 1,2,3,4-butanetetracarboxylic acid (BTCA) was used as a spacer. The morphology and composition of the surface pure and TiO 2 modified cotton fibers were investigated by the Scanning Electron Microscopy (SEM). The cotton/TiO 2 composite was characterized by the dielectric permittivity.For the estimation of total titania concentration, all samples were calcined at 650°C. The antimicrobial activity of the treated TiO 2 cotton fibers was investigated against Escherichia coli as a model Gram -negative bacteria after exposure to UV-irradiation for 10 minutes.

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“…Ohko et al [25] reported that the TiO 2 photocatalyst was successfully used as a coating in silicon catheters and medical tubes.…”

Section: Accepted M Manuscriptmentioning

confidence: 99%

“…An alternative to the existing methods is application of antimicrobial agents based on nanoparticles of different metals and oxides. Thus, silver, copper and titanium dioxide (titania) nanoparticles are widely used and they show strong biocidal effects on many pathogenic bacteria [23][24][25][26][27].…”

Section: Introductionmentioning

confidence: 99%

The sol–gel synthesis of cotton/TiO2 composites and their antibacterial properties

Galkina

Sycheva

Blagodatskiy

et al. 2014

Surface and Coatings Technology

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“…[8][9][10] TiO 2 has been extensively used in the development of these materials due to photocatalytic activity stimulated by ultraviolet (UV) light exposure. Upon excitation with UV light, TiO 2 generates reactive oxygen species (ROS) in the presence of water.…”

Section: Introductionmentioning

confidence: 99%

Biocompatibility and antibacterial activity of nitrogen-doped titanium dioxide nanoparticles for use in dental resin formulations

Zane

Villamena²,

Rockenbauer³

et al. 2016

IJN

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“…Ohko et al (2001) have found that silicone catheters coated with a thin layer of TiO 2 can be decontaminated using UV radiation of low intensity. Similar bactericidal effects were also observed in experiments on the sterilization of contaminated dental implants coated with titanium dioxide (Suketa et al 2005).…”

Section: Discussionmentioning

confidence: 99%

Survival of Staphylococcus aureus exposed to UV radiation on the surface of ceramic tiles coated with TiO2

Szczawinski¹,

Tomaszewski²,

Jackowska-Tracz³

et al. 2011

Polish Journal of Veterinary Sciences

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The aim of this study was to determine and compare the antimicrobial activity of UV radiation of wavelength 253.7 nm (used in typical germicidal lamps) against Staphylococcus aureus on the surfaces of conventionally produced white ceramic wall tiles (matt and shiny) and the same tiles coated with TiO 2 using three different methods: RF diode sputtering, atmospheric pressure chemical vapour deposition (APCVD) and spray pyrolysis deposition (SPD). Results clearly indicate that the bactericidal action of UV radiation is much stronger on the surfaces of tiles coated with TiO 2 than on the tiles uncovered. The strongest bactericidal effect of UV radiation was found for film prepared by APCVD. Results of experiments for shiny and matt tiles did not differ statistically. The use of ceramic wall tiles coated with TiO 2 films in hospitals, veterinary clinics, laboratories, food processing plants and other places where UV radiation is applied for disinfection should greatly improve the efficiency of this treatment.

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Self-sterilizing and self-cleaning of silicone catheters coated with TiO2 photocatalyst thin films: A preclinical work

Cited by 148 publications

References 17 publications

The sol–gel synthesis of cotton/TiO2 composites and their antibacterial properties

The sol–gel synthesis of cotton/TiO2 composites and their antibacterial properties

Biocompatibility and antibacterial activity of nitrogen-doped titanium dioxide nanoparticles for use in dental resin formulations

Survival of Staphylococcus aureus exposed to UV radiation on the surface of ceramic tiles coated with TiO2

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