Non-enzymatic glucose sensing on copper-nickel thin film alloy

Pötzelberger, Isabella; Mardare, Andrei Ionut; Hassel, Achim Walter

doi:10.1016/j.apsusc.2016.12.193

Cited by 23 publications

(10 citation statements)

References 35 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Thus, considerable attempts were made to develop economical, highly sensitive, fast and reliable non-enzymatic glucose sensors [7]. The enzyme-free detection of glucose on noble metals, thin film alloys, and metallic nanoparticles was extensively explored; however, these sensors undergo surface poisoning by adsorbed intermediates, leading to their poor sensitivity, selectivity, and stability [8][9][10]. Nevertheless, non-enzymatic electrochemical glucose sensors based on carbon nanomaterials, particularly carbon nanotubes and graphene, have attracted huge attention due to their unique properties including high surface area, chemical and electrochemical stability, exceptional electrical conductivity, superior biocompatibility, and ease of modification [11,12].…”

Section: Introductionmentioning

confidence: 99%

Synthesis and characterization of a novel non-enzymatic glucose biosensor based on polyaniline/zinc oxide/multi-walled carbon nanotube ternary nanocomposite

Mohajeri

Dolati²,

Yazdanbakhsh³

2019

J. Electrochem. Sci. Eng.

View full text Add to dashboard Cite

<p class="PaperAbstract">Novel polyaniline/zinc oxide/multi-walled carbon nanotube (PANI/ZnO/MWCNT) ternary nanocomposite was fabricated as a non-enzymatic glucose biosensor. Thermal chemical vapor deposition (CVD) process was employed to synthesize vertically aligned MWCNTs on stainless steel substrates coated by Co catalyst nanoparticles. In order to fabricate sensitive and reliable MWCNT-based biosensors, nanotubes density and alignment were adjusted by varying the CVD reaction time and cobalt sulfate concentration. The fabricated nanotubes were modified by ZnO particles through the potentiostatic electrodeposition technique. Optimal electrodeposition potential, electrodeposition time, and electrolyte concentration values were determined. The optimized ZnO/MWCNT nanocomposite was reinforced by polyaniline (PANI) nanofibers through the potential cycling technique, and the morphology, elemental composition, and phase structure of the fabricated nanocomposites were characterized by scanning electron microscopy (SEM), energy dispersive X-ray spectroscopy (EDX), and X-ray diffraction (XRD), respectively. The sensing mechanism of the PANI/ZnO/MWCNT electrode for the electrochemical detection of glucose was investigated, and the limit of detection and sensitivity values of the designed sensor were determined. The fast response time of the ternary nanocomposite-based sensor as well as its satisfactory stability and reproducibility, makes it a promising candidate for non-enzymatic detection of glucose in biomedical, environmental, and industrial applications.</p>

show abstract

Section: Introductionmentioning

confidence: 99%

Synthesis and characterization of a novel non-enzymatic glucose biosensor based on polyaniline/zinc oxide/multi-walled carbon nanotube ternary nanocomposite

Mohajeri

Dolati²,

Yazdanbakhsh³

2019

J. Electrochem. Sci. Eng.

View full text Add to dashboard Cite

show abstract

“…Nickel‐based sensors, exhibit excellent electrocatalytic activity towards glucose oxidation, and attract much attention due to their low toxicity, good stability and natural abundance. Their electrocatalytic performance depend on the formation of Ni(OH) 2 as a strong oxidizing agent of small organic molecules in alkaline conditions . Among, different strategies of synthesizing approaches used to prepare Ni(OH) 2 onto different substrates, electrochemical deposition on carbon‐based electrodes has been proven as a powerful tool for the fabrication of efficient sensors.…”

Section: Introductionmentioning

confidence: 99%

Facile Synthesis of Ni(OH)₂ Modified Disposable Pencil Graphite Electrode and its Application for Highly Sensitive Non‐enzymatic Glucose Sensor

et al. 2018

View full text Add to dashboard Cite

In this study, a low‐cost, disposable, sensitive and selective electrochemical sensor was developed for glucose determination, which is based on a pencil graphite electrode (PGE) modified with nickel hydroxide. Cyclic voltammetry was used to deposit nickel on PGE. The morphology and composition of the unmodified and modified PGE electrodes were characterized by field‐emission scanning electron microscopy (FE‐SEM), atomic force microscopy (AFM) and energy‐dispersive X‐ray spectroscopy (EDX). The performance of the as modified electrode towards the electrooxidation of glucose in alkaline media was evaluated with cyclic voltammetry and amperometry techniques. A linear relationship between the concentration of glucose and oxidation peak currents was observed in two concentration ranges of 0.004–3.5 mM and 3.5–9.0 mM. The detection limit was 2 μM at signal‐to‐noise ratio of 3. In addition to a fast response time (<2 s), the proposed sensor preserved 93 % of its original response towards glucose after 28 days. Also, the sensor showed a good reproducibility and high selectivity for glucose oxidation in the presence of common interfering species. The use of Ni(OH)2/PGE sensor was successfully tested in the determination of glucose in human blood serum for the first time in the literature.

show abstract

“…The anodic peak is shifted to the high potential region while the glucose concentration is raised. As indicated in previous reports the electrooxidation of glucose to glucolactone was catalysed by the redox couples Ni(II)/Ni(III) and Cu(II)/Cu(III) according to the following reactions :

true NiOOH + glucose \to Ni (OH)_{2} + normale^{-} + glucolactone

true CuOOH + glucose \to Cu (OH)_{2} + normale^{-} + glucolactone

…”

Section: Resultsmentioning

confidence: 80%

Electrochemical Investigation of Glucose on a Highly Sensitive Nickel‐Copper Modified Pencil Graphite Electrode

et al. 2018

View full text Add to dashboard Cite

Novel nickel‐copper modified pencil graphite electrode (Ni−Cu/PGE) was fabricated and used as non‐enzymatic sensor for glucose determination. Ni and copper were electrodeposited on PGE using cyclic voltammetry. Morphology and composition of the modified PGE electrode were characterized by field‐emission gun scanning electron microscopy (FEG‐SEM), energy‐dispersive X‐ray spectroscopy (EDX) and Fourier transform infrared spectroscopy (FT‐IR). Electrochemical oxidation of glucose was evaluated by cyclic voltammetry as well as by amperometry. Electrochemical measurements indicate that the Ni−Cu/PGE exhibits a high sensitivity of 2951 μA mM−1 cm−2, and a low detection limit of 0.99 μM which are, respectively, three times higher and twice lower than that on Ni/PGE prepared in the same conditions. Moreover, Ni−Cu/PGE exhibits a wider linear range from 1 to 10000 μM with a rapid response time within 2 s. Moreover, Ni−Cu/PGE showed a remarkable stability. The electrode was successfully applied for determination of glucose concentration in human blood without significant interference from potential endogenic interferents. The good applicability of the elaborated sensor made Ni−Cu/PGE promising for the development of effective and inexpensive non‐enzymatic glucose sensor.

show abstract

Non-enzymatic glucose sensing on copper-nickel thin film alloy

Cited by 23 publications

References 35 publications

Synthesis and characterization of a novel non-enzymatic glucose biosensor based on polyaniline/zinc oxide/multi-walled carbon nanotube ternary nanocomposite

Synthesis and characterization of a novel non-enzymatic glucose biosensor based on polyaniline/zinc oxide/multi-walled carbon nanotube ternary nanocomposite

Facile Synthesis of Ni(OH)₂ Modified Disposable Pencil Graphite Electrode and its Application for Highly Sensitive Non‐enzymatic Glucose Sensor

Electrochemical Investigation of Glucose on a Highly Sensitive Nickel‐Copper Modified Pencil Graphite Electrode

Contact Info

Product

Resources

About

Non-enzymatic glucose sensing on copper-nickel thin film alloy

Cited by 23 publications

References 35 publications

Synthesis and characterization of a novel non-enzymatic glucose biosensor based on polyaniline/zinc oxide/multi-walled carbon nanotube ternary nanocomposite

Synthesis and characterization of a novel non-enzymatic glucose biosensor based on polyaniline/zinc oxide/multi-walled carbon nanotube ternary nanocomposite

Facile Synthesis of Ni(OH)2 Modified Disposable Pencil Graphite Electrode and its Application for Highly Sensitive Non‐enzymatic Glucose Sensor

Electrochemical Investigation of Glucose on a Highly Sensitive Nickel‐Copper Modified Pencil Graphite Electrode

Contact Info

Product

Resources

About

Facile Synthesis of Ni(OH)₂ Modified Disposable Pencil Graphite Electrode and its Application for Highly Sensitive Non‐enzymatic Glucose Sensor