Synthesis of carbon nanotube-nickel nanocomposites using atomic layer deposition for high-performance non-enzymatic glucose sensing

Taejin Choi, Soo Hyeon Kim, Chang Wan Lee, Hangil Kim, Sang Kyung Choi, Soo Hyun Kim, Eunkyoung Kim, Jusang Park, Hyungjun Kim

Research output: Contribution to journalArticle

96 Citations (Scopus)

Abstract

A useful strategy has been developed to fabricate carbon-nanotube-nickel (CNT-Ni) nanocomposites through atomic layer deposition (ALD) of Ni and chemical vapor deposition (CVD) of functionalized CNTs. Various techniques, including scanning electron microscopy (SEM), transmission electron microscopy (TEM), and X-ray photoelectron spectroscopy (XPS), were used to characterize the morphology and the structure of as-prepared samples. It was confirmed that the products possess uniform Ni nanoparticles that are constructed by finely controlled deposition of Ni onto oxygen or bromine functionalized CNT surface. Electrochemical studies indicate that the CNT-Ni nanocomposites exhibit high electrocatalytic activity for glucose oxidation in alkaline solutions, which enables the products to be used in enzyme-free electrochemical sensors for glucose determination. It was demonstrated that the CNT-Ni nanocomposite-based glucose biosensor offers a variety of merits, such as a wide linear response window for glucose concentrations of 5μM-2mM, short response time (3s), a low detection limit (2μM), high sensitivity (1384.1μAmM -1 cm -2 ), and good selectivity and repeatability.

Original languageEnglish
Pages (from-to)325-330
Number of pages6
JournalBiosensors and Bioelectronics
Volume63
DOIs
Publication statusPublished - 2015 Jan 15

Fingerprint

Nanocomposites
Carbon Nanotubes
Atomic layer deposition
Nickel
Glucose
Carbon nanotubes
Bromine
Photoelectron Spectroscopy
Electrochemical sensors
Biosensing Techniques
Transmission Electron Microscopy
Biosensors
Electron Scanning Microscopy
Nanoparticles
Reaction Time
Limit of Detection
Chemical vapor deposition
X ray photoelectron spectroscopy
Enzymes
Oxygen

All Science Journal Classification (ASJC) codes

  • Biotechnology
  • Biophysics
  • Biomedical Engineering
  • Electrochemistry

Cite this

Choi, Taejin ; Kim, Soo Hyeon ; Lee, Chang Wan ; Kim, Hangil ; Choi, Sang Kyung ; Kim, Soo Hyun ; Kim, Eunkyoung ; Park, Jusang ; Kim, Hyungjun. / Synthesis of carbon nanotube-nickel nanocomposites using atomic layer deposition for high-performance non-enzymatic glucose sensing. In: Biosensors and Bioelectronics. 2015 ; Vol. 63. pp. 325-330.
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Synthesis of carbon nanotube-nickel nanocomposites using atomic layer deposition for high-performance non-enzymatic glucose sensing. / Choi, Taejin; Kim, Soo Hyeon; Lee, Chang Wan; Kim, Hangil; Choi, Sang Kyung; Kim, Soo Hyun; Kim, Eunkyoung; Park, Jusang; Kim, Hyungjun.

In: Biosensors and Bioelectronics, Vol. 63, 15.01.2015, p. 325-330.

Research output: Contribution to journalArticle

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