Exploration of a W/O Nanoemulsion for Antibiofilm Activity against Cariogenic Enterococcus faecalis

  • Manvi Singh
  • , Abdul Rehman
  • , Nazia Hassan
  • , Abdul Anfey Faheem
  • , Ayan Das
  • , Mohammad Akhlaquer Rahman
  • , Mohammad Javed Ansari
  • , Nilima Sharma
  • , Mridu Dudeja
  • , Mohd Aqil
  • , Mohd Aamir Mirza
  • , Zeenat Iqbal

Research output: Contribution to journalArticlepeer-review

3 Scopus citations

Abstract

A ciprofloxacin-loaded water-in-oil nanoemulsion (CPX-NE) was prepared and evaluated for the antimicrobial effect against oral biofilms produced by Enterococcus faecalis. CPX-NE was prepared by ultrasonication using functional excipients oleic acid (oil phase), Span 80 (surfactant), and Transcutol P (cosurfactant). Rheological parameters (viscosity = 20 ± 1.24 cp) confirmed optimum values for CPX-NE, a pH of 6.5 ± 0.23 suggested the simulation of CPX-NE with the pH of the mouth cavity, refractive index (1.46 ± 0.22), and % transmittance (92.34 ± 0.02) indicated the isotropic nature of the NE. The droplet size (72.19 ± 1.68 nm), polydispersity index (0.142 ± 0.02), and ζ potential (−28 mV) demonstrated a narrow size distribution and electrostatically stabilized NE. The morphology of the optimized formulation showed uniform spherical nanodroplets, as seen in fluorescence microscopy. In vitro drug release showed an initial burst effect followed by sustained release for 48 h, following Fick’s diffusion. The minimum biofilm inhibitory and eradication concentration (MBIC/MBEC) was determined to compare CPX-NE with ciprofloxacin plain drug solution (CPX-PS) for their efficacy. CPX-NE demonstrated a significant inhibitory and eradication effect compared to CPX-PS. It was concluded that the developed CPX-NE has effective antibiofilm activity against E. faecalis and may be useful in the prevention and treatment of dental caries.(Figuer

Original languageEnglish
Pages (from-to)2871-2879
Number of pages9
JournalACS Omega
Volume8
Issue number3
DOIs
StatePublished - 24 Jan 2023

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