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      Permanent link:
      https://www.ias.ac.in/article/fulltext/jcsc/115/05-06/0703-0709

    • Keywords

       

      Ciprofloxacin; SiO2 nanobubble; Tb3+; fluorescence

    • 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.

    • Author Affiliations

       

      M J Rosemary1 2 V Suryanarayanan1 2 P Ganapatireddy1 Ian Maclaren3 S Baskaran1 T Pradeep1 2

      1. Department of Chemistry, Indian Institute of Technology Madras, Chennai - 600 036, India
      2. Regional Sophisticated Instrumentation Centre, Indian Institute of Technology Madras, Chennai - 600 036, India
      3. Darmstadt University of Technology, Institute for Materials Science, Petersenstrasse 23, Darmstadt - 64287, Germany

    • Dates

       
      Published
      12 October 2003

  • Journal of Chemical Sciences | News

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