Nafion-stabilized two-dimensional transition metal carbide (Ti3C2Tx MXene) as a high-performance electrochemical sensor for neurotransmitter

Faisal Shahzad, Aamir Iqbal, Shabi Abbas Zaidi, Suk-Won Hwang, Chong Min Koo

Research output: Contribution to journalArticle

7 Citations (Scopus)

Abstract

Herein, we demonstrate the selective sensing of Dopamine (DA), an important neurotransmitter, by using Nafion-stabilized two-dimensional transition metal carbides (Ti3C2Tx MXenes). Ti3C2Tx was deposited on a glassy carbon electrode followed by Nafion coating to achieve a robust sensitivity (∼3 nM), good selectivity, wide detection window (0.015–10 μM), high stability, reproducibility, and outstanding recoveries for DA detection in real samples. MXene-based biosensor exhibited much better electrochemical performance when compared with reduced graphene oxide-based biosensor under similar experimental conditions due to the MXenes good electrical conductivity and negatively charged surface which assisted in the selective and sensitive detection of DA.

Original languageEnglish
JournalJournal of Industrial and Engineering Chemistry
DOIs
Publication statusPublished - 2019 Jan 1

Keywords

  • Dopamine
  • Electrochemical sensor
  • MXenes
  • TiC
  • Two-dimensional transition metal carbides

ASJC Scopus subject areas

  • Chemical Engineering(all)

Fingerprint Dive into the research topics of 'Nafion-stabilized two-dimensional transition metal carbide (Ti<sub>3</sub>C<sub>2</sub>T<sub>x</sub> MXene) as a high-performance electrochemical sensor for neurotransmitter'. Together they form a unique fingerprint.

  • Cite this