Effect of Novel Quercetin Titanium Dioxide-Decorated Multi-Walled Carbon Nanotubes Nanocomposite on Bacillus subtilis Biofilm Development

Diana S Raie, Eisha Mhatre, Doaa S El-Desouki, Ahmed Labena, Gamal El-Ghannam, Laila A Farahat, Tareq Youssef, Wolfgang Fritzsche, Ákos T. Kovács*

*Corresponding author for this work

Research output: Contribution to journalJournal articleResearchpeer-review

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Abstract

The present work was targeted to design a surface against cell seeding and adhering of bacteria, Bacillus subtilis. A multi-walled carbon nanotube/titanium dioxide nano-power was produced via simple mixing of carbon nanotube and titanium dioxide nanoparticles during the sol-gel process followed by heat treatment. Successfully, quercetin was immobilized on the nanocomposite via physical adsorption to form a quercetin/multi-walled carbon nanotube/titanium dioxide nanocomposite. The adhesion of bacteria on the coated-slides was verified after 24 h using confocal laser-scanning microscopy. Results indicated that the quercetin/multi-walled carbon nanotube/titanium dioxide nanocomposite had more negativity and higher recovery by glass surfaces than its counterpart. Moreover, coating surfaces with the quercetin-modified nanocomposite lowered both hydrophilicity and surface-attached bacteria compared to surfaces coated with the multi-walled carbon nanotubes/titanium dioxide nanocomposite.
Original languageEnglish
Article number157
JournalMaterials
Volume11
Issue number1
Number of pages14
ISSN1996-1944
DOIs
Publication statusPublished - 2018

Bibliographical note

This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

Keywords

  • Titanium oxide nanoparticles
  • Quercetin
  • Multi-walled carbon nanotube
  • Bacterial adhesion
  • Biofilm
  • Hydrophilicity
  • Bacillus subtilis

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