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Related Experiment Videos

Ciprofloxacin-protected gold nanoparticles.

Renjis T Tom1, V Suryanarayanan, P Ganapati Reddy

  • 1Department of Chemistry and Regional Sophisticated Instrumentation Centre, Indian Institute of Technology Madras, Chennai 600 036, India.

Langmuir : the ACS Journal of Surfaces and Colloids
|April 2, 2005
PubMed
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Ciprofloxacin (cfH) protects gold nanoparticles, acting as a drug carrier. Drug release kinetics depend on nanoparticle size, with faster release from smaller particles.

Area of Science:

  • Nanotechnology
  • Materials Science
  • Pharmacology

Background:

  • Gold nanoparticles (AuNPs) are explored for drug delivery applications.
  • Ciprofloxacin (cfH) is a widely used antibacterial agent.
  • Understanding drug-nanoparticle interactions is crucial for effective drug delivery systems.

Purpose of the Study:

  • To investigate the protective role of ciprofloxacin (cfH) on gold nanoparticles (AuNPs).
  • To characterize the binding of cfH to AuNPs and its release kinetics.
  • To evaluate the potential of AuNPs as carriers for cfH.

Main Methods:

  • Synthesis and characterization of 4 nm and 20 nm gold nanoparticles.
  • Adsorption studies of ciprofloxacin (cfH) onto gold nanoparticles.

Related Experiment Videos

  • Voltammetric and spectroscopic analyses to determine binding nature.
  • Drug release studies in different media (pure water, basic medium).
  • Kinetic analysis of drug desorption.

    • Main Results:

    • Ciprofloxacin (cfH) effectively protects gold nanoparticles (AuNPs), with specific molecular coverages for different particle sizes.
    • The nitrogen atom of the piperazine group in cfH binds to the gold surface.
    • cfH-adsorbed AuNPs exhibit stability and redispersibility.
    • Drug release rate is higher in basic medium and faster from smaller nanoparticles.
    • Bound cfH exhibits fluorescence, enabling potential biological tracking.

    Conclusions:

    • Gold nanoparticles serve as effective carriers for ciprofloxacin (cfH).
    • The binding and release characteristics are influenced by nanoparticle size and environmental conditions.
    • The fluorescent property of bound cfH offers opportunities for biological applications.
    • Metal nanoparticles show promise for delivering fluoroquinolone antibiotics over extended periods.