Redirigiendo al acceso original de articulo en 16 segundos...
Inicio  /  Coatings  /  Vol: 8 Núm: 3 Par: March (2018)  /  Artículo
ARTÍCULO
TITULO

Bacterial Biofilm Characterization and Microscopic Evaluation of the Antibacterial Properties of a Photocatalytic Coating Protecting Building Material

Thomas Verdier    
Alexandra Bertron    
Benjamin Erable and Christine Roques    

Resumen

Use of photocatalytic paint-like coatings may be a way to protect building materials from microbial colonization. Numerous studies have shown the antimicrobial efficiency of TiO 2 photocatalysis on various microorganisms. However, few have focused on easy-to-apply solutions and on photocatalysis under low irradiance. This paper focuses on (a) the antibacterial properties of a semi-transparent coating formulated using TiO 2 particles and (b) the microscopic investigations of bacterial biofilm development on TiO 2 -coated building materials under accelerated growth conditions. Results showed significant antibacterial activity after few hours of testing. The efficiency seemed limited by the confinement of the TiO 2 particles inside the coating binder. However, a pre-irradiation with UV light can improve efficiency. In addition, a significant effect against the formation of a bacterial biofilm was also observed. The epifluorescence approach, in which fluorescence is produced by reflect rather than transmitted light, could be applied in further studies of microbial growth on coatings and building materials.

 Artículos similares

       
 
Yongwei Yan, Shanshan Wang, Jie Li, Fuli Liu and Zhaolan Mo    
Bacteria are one of the causes of green rot disease (GRD) in Saccharina japonica mariculture, which may lead to complete failure of seedling production. However, the association between bacterial community and host disease severity remains largely unknow... ver más

 
Jingyang Zhang, Sofiya-Roksolana Got, Iris Xiaoxue Yin, Edward Chin-Man Lo and Chun-Hung Chu    
Studies have shown that silver diamine fluoride (SDF) is an effective agent to arrest and prevent dental caries due to its mineralizing and antibacterial properties. While plenty of studies have investigated the mineralizing properties, there are few pap... ver más
Revista: Applied Sciences

 
Abdulrahman A. Balhaddad, Lamia S. Mokeem, Michael D. Weir, Huakun Xu and Mary Anne S. Melo    
This study intended to investigate the long-term antibacterial effect, mechanical performance, and surface topography of new anticaries dental composites. While most artificial aging studies of dental resins lasted for 30?90 days, this study prolonged th... ver más
Revista: Applied Sciences

 
Wei Han, Yufeng Mao, Yunpeng Wei, Peng Shang and Xu Zhou    
The discharge of aquaculture wastewater and the excessive selenium in aquaculture effluent caused by selenium addition to aquatic feed are posing a serious risk for the marine environment. In this study, batch tests were carried out to investigate the fe... ver más
Revista: Water

 
Leslie K. Daille, Javiera Aguirre, Diego Fischer, Carlos Galarce, Francisco Armijo, Gonzalo E. Pizarro, Magdalena Walczak, Rodrigo De la Iglesia and Ignacio T. Vargas    
The effects of tidal cycles associated with the water level on the biocorrosion of stainless steel AISI 316L were studied. Steel coupons were exposed to different conditions of immersion in mesocosms fed by fresh seawater either continuously or in accord... ver más