Journal of Chemical Sciences

, Volume 115, Issue 5, pp 703–709

Ciprofloxacin@SiO2: Fluorescent nanobubbles

Authors

  • M. J. Rosemary
    • Department of ChemistryIndian Institute of Technology Madras
    • Regional Sophisticated Instrumentation CentreIndian Institute of Technology Madras
  • V. Suryanarayanan
    • Department of ChemistryIndian Institute of Technology Madras
    • Regional Sophisticated Instrumentation CentreIndian Institute of Technology Madras
  • P. Ganapatireddy
    • Department of ChemistryIndian Institute of Technology Madras
  • Ian Maclaren
    • Darmstadt University of TechnologyInstitute for Materials Science
  • S. Baskaran
    • Department of ChemistryIndian Institute of Technology Madras
    • Department of ChemistryIndian Institute of Technology Madras
    • Regional Sophisticated Instrumentation CentreIndian Institute of Technology Madras
Article

DOI: 10.1007/BF02708260

Cite this article as:
Rosemary, M.J., Suryanarayanan, V., Ganapatireddy, P. et al. J Chem Sci (2003) 115: 703. doi:10.1007/BF02708260

Abstract

We report a new nanomaterial in which ciprofloxacin molecules are incorporated inside silica nanobubbles, denoted as ciprofloxacin@SiO2. The material has been characterised using UV/Vis absorption spectroscopy, transmission electron microscopy, cyclic voltammetry, and emission spectroscopy. The material is stable and the freestanding particles can be precipitated and redispersed in several solvents. Confinement of the molecule is complete as leaching through the shell is minimal. The material behaves like free ciprofloxacin in solution; however, effects of confinement are manifested. Energy transfer reaction between ciprofloxacin@SiO2 and Tb3+ was monitored by emission spectroscopy. The emission intensity decreased with metal ion exposure indicating selective electronic interaction.

Keywords

Ciprofloxacin SiO2 nanobubble Tb3+ fluorescence

Copyright information

© Indian Academy of Sciences 2003