10.1007/s40097-015-0154-1

Evaluation of nicotine sensor based on copper nanoparticles and carbon nanotubes

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  • Zohreh Goodarzi1,
  • Morteza Maghrebi1,
  • Alireza Fakhari Zavareh2,
  • Zahra-Beagom Mokhtari-Hosseini3,
  • Bahman Ebrahimi-hoseinzadeh*4,
  • Ashrafasadat Hatamian Zarmi4,
  • Mohammad Barshan-tashnizi4,
  1. Department of Chemical Engineering, Faculty of Engineering, Ferdowsi University of Mashhad, Mashhad, IR
  2. Department of Chemistry, Faculty of Science, Shahid Beheshti University, Tehran, IR
  3. Chemical Engineering Group, Faculty of Petroleum and Petrochemical Engineering, Hakim Sabzevari University, Sabzevar, IR
  4. Department of Life Sciences Engineering, Faculty of New Sciences and Technologies, University of Tehran, Tehran, IR
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Published in Issue 18-04-2015

How to Cite

Goodarzi, Z., Maghrebi, M., Zavareh, A. F., Mokhtari-Hosseini, Z.-B., Ebrahimi-hoseinzadeh, B., Zarmi, A. H., & Barshan-tashnizi, M. (2015). Evaluation of nicotine sensor based on copper nanoparticles and carbon nanotubes. Journal of Nanostructure in Chemistry, 5(3 (September 2015). https://doi.org/10.1007/s40097-015-0154-1
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Abstract

Abstract An electrochemical sensor was prepared to detect nicotine by depositing copper nanoparticles (Cu NPs) on the surface of a glassy carbon electrode (GCE) modified with multi-walled carbon nanotubes (MWNTs). The modified electrode was characterized by scanning electron microscopy and cyclic voltammetry. The novel-modified sensor exhibited effective electrocatalytic activities toward anodic oxidation of nicotine. Calibration plot showed two linear regions with different sensitivity, 1.121 ( r 2  = 0.982) in the range from 1 × 10 −6 to 9 × 10 −5  M and 0.164 ( r 2  = 0.982) from 1 × 10 −4  M up to 1 × 10 −3  M. The detection limit was 1 µM. For six parallel detections of 1 mM nicotine, the relative standard deviation was 5.68 %, suggesting that the film-modified electrode had good reproducibility. Experimental parameters affecting the sensor response such as pH, modifier concentration and electro-deposition scan rate were found to be optimum at 7.0, 2 mg mL −1 and 80 mV s −1 , respectively.

Keywords

  • Copper nanoparticles,
  • Cyclic voltammetry,
  • Multi-walled carbon nanotube,
  • Nano-biosensor,
  • Nicotine
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