| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 6481419 | Materials Science and Engineering: C | 2017 | 10 Pages |
â¢Novel quercetin-mediated nanoparticles were tested for anti-adhesion against attachment of cells forming biofilms.â¢Quercetin showed a low-grade of protection level against bacterial attachment.â¢Bio-inspired nano-anatase showed a lower efficiency than amorphous titanium.â¢Thermally treated bio-inspired nano-tungsten gets an improved anti-adhesive activity.
The aim of this study was directed to reveal the repulsive effect of coated glass slides by quercetin and its bio-inspired titanium oxide and tungsten oxide nanoparticles on physical surface attachment of Bacillus subtilis as an ab-initio step of biofilm formation. Nanoparticles were successfully synthesized using sol-gel and acid precipitation methods for titanium oxide and tungsten oxide, respectively (in the absence or presence of quercetin). The anti-adhesive impact of the coated-slides was tested through the physical attachment of B. subtilis after 24Â h using Confocal Laser Scanning Microscopy (CLSM). Here, quercetin was presented as a bio-route for the synthesis of tungsten mixed oxides nano-plates at room temperature. In addition, quercetin had an impact on zeta potential and adsorption capacity of both bio-inspired amorphous titanium oxide and tungsten oxide nano-plates. Interestingly, our experiments indicated a contrary effect of quercetin as an anti-adhesive agent than previously reported. However, its bio-inspired metal oxide proved their repulsive efficiency. In addition, quercetin-mediated nano-tungsten and quercetin-mediated amorphous titanium showed anti-adhesive activity against B. subtilis biofilm.
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