Enzymatic glucose sensor based on Au nanoparticle and plant-like ZnO film modified electrode

Tian, Kun; Alex, Saji; Siegel, Gene; Tiwari, Ashutosh

doi:10.1016/j.msec.2014.10.064

Cited by 88 publications

(38 citation statements)

References 22 publications

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“…Electrochemical characterization of the modified GCE electrode.-To study the electrochemical properties of the prepared biosensor, cyclic voltammetry (CV) and electrochemical impedance spectroscopy (EIS) are carried out in 5 mM Fe(CN) 6 3−/4− solution. Cyclic voltammetry in [Fe(CN) 6 ] 3−/4− solution is a convenient and valuable tool to determine the electrocatalytical activity of the surface modifier on the electrode.…”

Section: Resultsmentioning

confidence: 99%

“…Cyclic voltammetry in [Fe(CN) 6 ] 3−/4− solution is a convenient and valuable tool to determine the electrocatalytical activity of the surface modifier on the electrode. In this paper, cyclic voltammetry is carried out in 5 mM [Fe(CN) 6 ] 3−/4− solution at 50 mV s −1 . Fig.…”

Section: Resultsmentioning

confidence: 99%

“…3 shows the CV curves of the three electrodes: bare GCE, PDDA/GCE and PDDACNTs/GCE. The reduction peaks and oxidation peaks appear when the redox couples of [Fe(CN) 6 ] 3−/4− for the bare GCE is +0.27 V vs. SCE in forward scans and +0.04 V vs. SCE in reverse scans. As to the PDDA/GCE, the oxidation current decreases obviously compared with the bare GCE.…”

Section: Resultsmentioning

confidence: 99%

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Self-Assembling of Electrochemical Glucose Biosensor with Bacteriostatic Materials via Layer-by-Layer Method

Gao

Luo

Zhang

et al. 2017

J. Electrochem. Soc.

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Poly-diallyl-dimethyl-ammonium chloride (PDDA) solution was used to disperse carbon nanotubes (CNTs) to form a stable PDDACNTs aqueous dispersion. The negatively charged glucose oxidase (GOx) and positively charged PDDA-CNTs composite were used to prepare multilayer biosensing films on glassy carbon electrodes (GCE) via layer-by-layer (LBL) self-assembly technique. The optimum number of layers on GCE was 4. A mixture of 3-dimethyl (methacryloyloxyethyl) ammonium propane sulfonate (DMAPS) and Graphene (GR) was dropped on the multilayer films to prepare a bacteriostatic glucose biosensor. The results show that CNTs could evenly disperse in the PDDA films and the multilayer PDDA-CNTs films can significantly improve the catalytic current response toward glucose (Glu). The biosensor could detect glucose linearly from 16.5 to 214. Electrochemical biosensors which utilize immobilized oxidase [1][2][3][4][5][6] or metal/metal oxide 7-10 to catalyze the oxidation of target analyte, could respond to the changes of concentration of the analyte, and output electrical signal with some disciplines. It can be used to determine biological, clinical, or environmental substances.11-13 Many works have been carried out to achieve high biosensing performance. 14-17However, less research has been done about the bacteriostatic electrochemical glucose biosensor.Antimicrobial or bacteriostatic material has been widely used in industries such as textile, food fermentation and medical device industry. 18,19 In the process of bio-fermentation, the detection of various biochemical parameters (biomass, cell activity, substrate, nutrition, products and metabolites) forms the basis of controlling process of the fermentation. 20 The growth rate of micro-organism can be monitored by the consumption of glucose. Consequently, the abnormal phenomenon of fermentation process can be forecasted by the timely detection of glucose.21 However, bacterium can be easily adsorbed on the surface of the glucose sensors to form a bio-film. The bio-film can block the substrate close to the electrode, and the accuracy of the detection can be affected. 22 In these cases, it is especially necessary to use antimicrobial or bacteriostatic glucose biosensors. But there are very few studies reporting the antimicrobial or bacteriostatic electrochemical glucose biosensor. In this paper, a bacteriostatic film is built on GCE via layer-by-layer (LbL) self-assembly method and used to construct a glucose sensor.It is generally known that chemical compounds contain quaternized ammonium groups and that zwitterionic sulfopropylbetaine shows bacteriostatic or antimicrobial properties, 23 besides the zwitterionic materials show outstanding protein resistance performance. 24,25 A typical sulfobetaine, 3-dimethyl(methacryloyloxyethyl) ammonium propane sulfonate (DMAPS) (Scheme 1), which contains a sulfonate group and a quarternized ammonium separated by an alkyl spacer, has outstanding antimicrobial properties.Layer-by-layer (LbL) self-assembly method is a useful and versatile tech...

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Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

See 1 more Smart Citation

Self-Assembling of Electrochemical Glucose Biosensor with Bacteriostatic Materials via Layer-by-Layer Method

Gao

Luo

Zhang

et al. 2017

J. Electrochem. Soc.

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“…The decoration of macro or microelectrodes with nanomaterials is a common strategy for improving sensor performance with carbon nanotubes, 46 nanorods, 47 and gold nanoparticles 48 all finding applications for glucose sensing. The incorporation of these nanomaterials increases the roughness and surface area of larger electrodes, while they may also exhibit favorable electrocatalytic properties toward electroactive compounds.…”

Section: Healthmentioning

confidence: 99%

Electrochemical nanosensors: advances and applications

Barry¹,

Riordan²

2016

RIE

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“…Measuring glucose concentration is also important for bio-processing and bio-reactor applications, as well as for home care usage. Current glucose sensors are typically based on an enzymatic mechanism with the advantages of low cost and simple operation [2][3][4][5][6]. However, an enzymebased biosensor is limited in accuracy and the reproducibility of measurements are only fair due to the loss of enzyme activity over time.…”

Section: Introductionmentioning

confidence: 99%

Cuprous Oxide Thin Film Non-Enzymatic Glucose Sensor Using Differential Pulse Voltammetry (DPV) and Other Voltammetry Methods and Comparing to Different Thin Film Electrodes on the Detection of Glucose in an Alkaline Solution

Dai¹,

Molazemhosseini²,

Abbasi³

et al. 2017

Preprint

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A cuprous oxide (Cu2O) thin layer served as the base for a non-enzymatic glucose sensor in an alkaline medium, 0.1 NaOH solution, with a linear range of 50-200 mg/dL using differential pulse voltammetry (DPV) measurement. An X-ray photoelectron spectroscopy (XPS) study confirmed the formation of the cuprous oxide layer on the thin gold film sensor prototype. Quantitative detection of glucose in both phosphate-buffered saline (PBS) and undiluted human serum were carried out. Neither ascorbic acid nor uric acid even at a relatively high concentration level of 100mg/dL in serum interfered with the glucose detection, demonstrating the excellent selectivity of this non-enzymatic cuprous oxide thin layer based glucose sensor. Chronoamperometry (CA) and single potential amperometric voltammetry were used to verify the measurements obtained by differential pulse voltammetry (DPV), and the positive results validated that the detection of glucose in a 0.1 M NaOH alkaline medium by DPV measurement was effective. Nickel, platinum and copper are commonly used metals for non-enzymatic glucose detection. The performance of these metal-based sensors for glucose detection using DPV were also evaluated. Cuprous oxide (Cu 2 O) thin layer based sensor showed the best sensitivity for glucose detection among the sensors evaluated.

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Enzymatic glucose sensor based on Au nanoparticle and plant-like ZnO film modified electrode

Cited by 88 publications

References 22 publications

Self-Assembling of Electrochemical Glucose Biosensor with Bacteriostatic Materials via Layer-by-Layer Method

Self-Assembling of Electrochemical Glucose Biosensor with Bacteriostatic Materials via Layer-by-Layer Method

Electrochemical nanosensors: advances and applications

Cuprous Oxide Thin Film Non-Enzymatic Glucose Sensor Using Differential Pulse Voltammetry (DPV) and Other Voltammetry Methods and Comparing to Different Thin Film Electrodes on the Detection of Glucose in an Alkaline Solution

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