Sonochemical synthesis and fabrication of honeycomb like zirconium dioxide with chitosan modified electrode for sensitive electrochemical determination of anti-tuberculosis (TB) drug

Ultrason Sonochem. 2019 Dec:59:104718. doi: 10.1016/j.ultsonch.2019.104718. Epub 2019 Aug 1.

Abstract

Herein, novel honeycomb like zirconium dioxide with chitosan (ZrO2@chitosan) nanocomposite have been designed through a facile ultrasound-assisted method and followed by a simple sonication process (bath-type ultrasound washer; Honda Electronics-W-118T; 100 W/cm2 and 300 kHz frequency). After then, as-synthesized ZrO2@chitosan was characterized by FESEM, XRD and EIS. The ZrO2@chitosan nanocomposite modified glassy carbon electrode shows excellent electrochemical sensing performance towards anti-tuberculosis drug (rifampicin). Furthermore, the ZrO2@chitosan modified and fabricated electrochemical sensor showed a wide linear range between 0.015 µM and 547.4 µM and nanomolar detection limit (7.5 nM). Moreover, the ZrO2@chitosan modified electrode showed selectivity towards the detection of anti-tuberculosis drug (rifampicin). The ZrO2@chitosan nanocomposite film modified non-enzymatic sensor has high stable and good reproducible towards the detection of rifampicin. In addition, the as-synthesized ZrO2@chitosan nanocomposite modified electrode has been applied to the determination of rifampicin in biological samples such as human serum and urine samples.

Keywords: Anti-tuberculosis drug analysis; Biopolymer; Electrochemical sensor; Sonochemical synthesis; Zirconium dioxide.

MeSH terms

  • Antitubercular Agents / analysis*
  • Antitubercular Agents / chemistry
  • Carbon / chemistry
  • Chemistry Techniques, Synthetic
  • Chitosan / chemistry*
  • Electrochemistry / instrumentation*
  • Electrodes
  • Limit of Detection*
  • Nanocomposites / chemistry*
  • Nanotechnology
  • Oxidation-Reduction
  • Reproducibility of Results
  • Rifampin / analysis
  • Rifampin / chemistry
  • Ultrasonic Waves*
  • Zirconium / chemistry*

Substances

  • Antitubercular Agents
  • Carbon
  • Chitosan
  • Zirconium
  • zirconium oxide
  • Rifampin