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Fluorinated TiO2‑doped, glycine‑functionalized MWCNTs for high‑performance antibacterial agents

  • Carbon Letters
  • Abbr : Carbon Lett.
  • 2019, 29(1), pp.65-68
  • DOI : 10.1007/s42823-019-00008-0
  • Publisher : Korean Carbon Society
  • Research Area : Natural Science > Natural Science General > Other Natural Sciences General
  • Received : April 4, 2018
  • Accepted : January 22, 2019
  • Published : February 1, 2019

Umadevi Mahalingam 1 Poornima P. Veerabaghu 1 Sangari Mayavan 1 Parimaladevi Ramasamy 1

1Mother Teresa Women’s University

Accredited

ABSTRACT

Perennial need for bactericides requires cost-effective nanomaterials with strong antibacterial activities even in the absence of external irradiation. Hence, in this work, we have synthesized f-CFT (fluorinated TiO2-doped, glycine-functionalized MWCNTs) and have studied its antibacterial activities. Both gram-negative and gram-positive bacteria were analyzed in the absence of photo-activation. Zone of inhibition of 15 mm for S. aureus, and 11 mm for P. aeruginosa was observed for f-CFT owing to the synergistic bactericidal properties of functionalized MWCNTs, fluorine and nano-TiO2. Anatase phase TiO2 with average crystallite size as 35 nm was observed in XRD. Scanning electron microscopic images showed uniform mixed cubic structures. Hydroxyl groups observed in FT-IR along with the glycine MWCNTs interface aid the inhibition of bacterial growth even in the absence of photo activation. A desired higher gram-positive bacterial inhibition opens new gates for better antibacterial agents.

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