Enzyme-free sensing of glucose on a copper electrode modified with nickel nanoparticles and multiwalled carbon nanotubes

Zhong, Anni; Luo, Xin; Chen, Liping; Wei, Shanshan; Liu, Yonghong; Li, Xinchun

doi:10.1007/s00604-014-1443-y

Cited by 34 publications

(11 citation statements)

References 37 publications

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“…This may suggest that both NiOOH and CuOOH species act as catalysts for glucose oxidation. This can be described for the Cu–Ni thin film combinatorial library using the following reaction equations

N i O O H + g l u \cos e \to N i {true(normalO normalH true)}_{2} + g l u c o l a c e t o n e,

C u O O H + g l u \cos e \to C u {true(normalO normalH true)}_{2} + g l u c o l a c e t o n e .

…”

Section: Resultsmentioning

confidence: 99%

Electrocatalytic oxidation of glucose by screening combinatorial copper–nickel alloys

Pötzelberger

Mardare

Hassel

2015

Physica Status Solidi (a)

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A Cu-Ni thin film combinatorial library deposited using a co-evaporation technique was screened for electrocatalytic oxidation of glucose in NaOH electrolyte using a flow-type scanning droplet cell microscope. The crystallographic characteristics and surface microstructure were mapped along the compositional spread using scanning XRD and SEM. The obtained compositional spread of approximately 1-14 at.% Ni showed suitability for being used in glucose detection as evidenced by cyclic voltammetry studies. Increasing the Ni amount resulted in increased glucose electrocatalytic oxidation. The linearity observed between the current density and inverse scan rate for various rates of potential increase revealed a diffusion limited process. Amperometric measurements performed at various applied potentials indicated an increase in the current density plateaus responsible for glucose detection of more than 5 mA cm À2 .

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N i O O H + g l u \cos e \to N i {true(normalO normalH true)}_{2} + g l u c o l a c e t o n e,

C u O O H + g l u \cos e \to C u {true(normalO normalH true)}_{2} + g l u c o l a c e t o n e .

…”

Section: Resultsmentioning

confidence: 99%

Electrocatalytic oxidation of glucose by screening combinatorial copper–nickel alloys

Pötzelberger

Mardare

Hassel

2015

Physica Status Solidi (a)

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“…The analytical performance of the developed sensor was compared with other nonenzymatic electrochemical glucose sensors reported [27][28][29][30][31][32][33][34][35][36][37][38][39]. Features such as linearity, sensitivity, applied potential and detection limit of the sensors are tabulated (Table 1).…”

Section: Interference Studymentioning

confidence: 99%

Highly sensitive and wide-range nonenzymatic disposable glucose sensor based on a screen printed carbon electrode modified with reduced graphene oxide and Pd-CuO nanoparticles

et al. 2015

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A nanocomposite consisting of reduced graphene oxide decorated with palladium-copper oxide nanoparticles (Pd-CuO/rGO) was synthesized by single-step chemical reduction. The morphology and crystal structure of the nanocomposite were characterized by field-emission scanning electron microscopy, high resolution transmission electron microscopy and X-ray diffraction analysis. A 3-electrode system was fabricated by screen printing technology and the PdCuO/rGO nanocomposite was dropcast on the carbon working electrode. The catalytic activity towards glucose in 0.2 M NaOH solutions was analyzed by linear sweep voltammetry and amperometry. The steady state current obtained at a constant potential of +0.6 V (vs. Ag/AgCl) showed the modified electrode to possess a wide analytical range (6 μM to 22 mM), a rather low limit of detection (30 nM), excellent sensitivity (3355 μA mM −1 cm −2 ) and good selectivity over commonly interfering species and other sugars including fructose, sucrose and lactose. The sensor was successfully employed to the determination of glucose in blood serum.

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“…However, access to an exposed copper face may be required in certain applications, such as electrochemical sensing. 43 This novel patterning and transfer process uses minimal fabrication equipment, low cost materials, and relatively few processing steps in order to address issues of complexity and cost that are characteristic of other metallization processes. In addition, the unique infrared (IR)-assisted transfer from a sacrificial conductive paint seed layer has been demonstrated to make the metallization process adaptable to a variety of substrates and applications, such as fabrics and aligned multi-layer devices.…”

Section: B3068mentioning

confidence: 99%

A Low-Cost, Micropattern Transfer Process for Thick-Film Metallization of PDMS

Hilbich

Gray

Shannon

2017

J. Electrochem. Soc.

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We present the detailed characterization of a novel microfabrication process to produce thick-film copper microstructures that are embedded in polydimethylsiloxane (PDMS). This process has reduced fabrication complexity and cost compared to existing metal-on-PDMS techniques and enables rapid prototyping of designs using minimal microfabrication equipment. This technology differs from others in its use of a conductive copper paint seed layer and a unique infrared-assisted transfer process that results in copper microstructures embedded in PDMS. By embedding microstructures flush with the PDMS surface, rather than fabricating the microstructures on the substrate surface, we produce a metallization layer that adheres to PDMS without the need for surface modifications. In addition, the electrodeposition process results in a highly-conductive, thick-film, copper layer. Deposited patterns are shown to be 70-micrometers-thick with reliable feature sizes as small as 100 micrometers. The copper layer has a surface roughness of approximately 5 micrometers and a low film resistivity of approximately 2.5-3 micro--cm.

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Enzyme-free sensing of glucose on a copper electrode modified with nickel nanoparticles and multiwalled carbon nanotubes

Cited by 34 publications

References 37 publications

Electrocatalytic oxidation of glucose by screening combinatorial copper–nickel alloys

Electrocatalytic oxidation of glucose by screening combinatorial copper–nickel alloys

Highly sensitive and wide-range nonenzymatic disposable glucose sensor based on a screen printed carbon electrode modified with reduced graphene oxide and Pd-CuO nanoparticles

A Low-Cost, Micropattern Transfer Process for Thick-Film Metallization of PDMS

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