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Ciprofloxacin@SiO2: Fluorescent nanobubbles

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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.

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Authors and Affiliations

  1. Department of Chemistry, Indian Institute of Technology Madras, 600 036, Chennai, India

    M. J. Rosemary, V. Suryanarayanan, P. Ganapatireddy, S. Baskaran & T Pradeep

  2. Regional Sophisticated Instrumentation Centre, Indian Institute of Technology Madras, 600 036, Chennai, India

    M. J. Rosemary, V. Suryanarayanan & T Pradeep

  3. Darmstadt University of Technology, Institute for Materials Science, Petersenstrasse 23, 64287, Darmstadt, Germany

    Ian Maclaren

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  1. M. J. Rosemary
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  2. V. Suryanarayanan
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  3. P. Ganapatireddy
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  4. Ian Maclaren
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  5. S. Baskaran
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  6. T Pradeep
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Corresponding author

Correspondence to T Pradeep.

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Dedicated to Professor C N R Rao on his 70th birthday

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Rosemary, M.J., Suryanarayanan, V., Ganapatireddy, P. et al. Ciprofloxacin@SiO2: Fluorescent nanobubbles. J Chem Sci 115, 703–709 (2003). https://doi.org/10.1007/BF02708260

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  • DOI: https://doi.org/10.1007/BF02708260

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