Next Article in Journal
Parametric Study on Microwave-Assisted Pyrolysis Combined KOH Activation of Oil Palm Male Flowers Derived Nanoporous Carbons
Previous Article in Journal
Determination of Mortar Strength in Historical Brick Masonry Using the Penetrometer Test and Double Punch Test
Open AccessArticle

A Nonenzymatic Glucose Sensor Platform Based on Specific Recognition and Conductive Polymer-Decorated CuCo2O4 Carbon Nanofibers

1
School of Transportation Civil Engineering, Shandong Jiaotong University, Jinan 250357, China
2
School of Control Science and Engineering, Shandong University, Jinan 250002, China
3
Postdoctoral Technology Research Center, Shandong Anran Group, Weihai 264205, China
4
School of Materials Science and Engineering, Shandong University, Jinan 250002, China
*
Authors to whom correspondence should be addressed.
Materials 2020, 13(12), 2874; https://doi.org/10.3390/ma13122874
Received: 26 May 2020 / Revised: 21 June 2020 / Accepted: 23 June 2020 / Published: 26 June 2020
CuCo2O4 decoration carbon nanofibers (CNFs) as an enzyme-free glucose sensor were fabricated via electrospinning technology and carbonization treatment. The CNFs with advantages of abundant nitrogen amounts, porosity, large surface area, and superior electrical conductivity were used as an ideal matrix for CuCo2O4 decoration. The resultant CuCo2O4–CNF hybrids possessed favorable properties of unique three-dimensional architecture and good crystallinity, accompanied by the CuCo2O4 nanoparticles uniformly growing on the CNF skeleton. To further enhance the selective molecular recognition capacity of the developed sensor, a conductive film was synthesized through the electropolymerization of thiophene and thiophene-3-boronic acid (TBA). Based on the synergistic effects of the performances of CNFs, CuCo2O4 nanoparticles, and boronic acid-decorated polythiophene layer, the obtained poly(thiophene-3-boronic acid) (PTBA)/CuCo2O4–CNF-modified electrodes (PTBA/CuCo2O4–CNFs/glassy carbon electrode (GCE)) displayed prominent electrocatalytic activity toward electro-oxidation of glucose. The fabricated sensor presented an outstanding performance in the two linear ranges of 0.01–0.5 mM and 0.5–1.5 mM, with high selectivity of 2932 and 708 μA·mM−1·cm−2, respectively. The composite nanofibers also possessed good stability, repeatability, and excellent anti-interference selectivity toward the common interferences. All these results demonstrate that the proposed composite nanofibers hold great potential in the application of constructing an enzyme-free glucose sensing platform. View Full-Text
Keywords: electrospinning; CuCo2O4; thiophene-3-boronic acid; electrocatalytic activity; glucose sensor electrospinning; CuCo2O4; thiophene-3-boronic acid; electrocatalytic activity; glucose sensor
Show Figures

Graphical abstract

MDPI and ACS Style

Ding, Y.; Sun, H.; Ren, C.; Zhang, M.; Sun, K. A Nonenzymatic Glucose Sensor Platform Based on Specific Recognition and Conductive Polymer-Decorated CuCo2O4 Carbon Nanofibers. Materials 2020, 13, 2874.

Show more citation formats Show less citations formats
Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Article Access Map by Country/Region

1
Search more from Scilit
 
Search
Back to TopTop