Amperometric Enzyme-free Glucose Sensor Based on Electrodeposition of Au Particles on Polyaniline Film Modified Pt Electrode

An amperometric non-enzymatic glucose sensor of high sensitivity was developed by modification of Pt electrode with electrodeposition of Au particles on polyaniline film. The Au particles were deposited under optimum growth conditions for maximum dispersion on polymer film to achieve highly sensitiv...

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Main Authors: Yijun Tang, Shveta Malhotra, Pradeep K. Varshney
Format: Article
Language:English
Published: Slovenian Chemical Society 2018-09-01
Series:Acta Chimica Slovenica
Subjects:
Online Access:https://journals.matheo.si/index.php/ACSi/article/view/4386
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author Yijun Tang
Shveta Malhotra
Pradeep K. Varshney
author_facet Yijun Tang
Shveta Malhotra
Pradeep K. Varshney
author_sort Yijun Tang
collection DOAJ
description An amperometric non-enzymatic glucose sensor of high sensitivity was developed by modification of Pt electrode with electrodeposition of Au particles on polyaniline film. The Au particles were deposited under optimum growth conditions for maximum dispersion on polymer film to achieve highly sensitive glucose sensor. The characterization of the electrode and the analytical parameters were evaluated using chronoamperometry and cyclic voltammetry techniques. The sensor showed wide linear range from 0.01–8 mM along with swift response time of less than 5 s. Moreover, a high sensitivity of 113.6 A mM-1 cm-2 is obtained along with low detection limits of 0.5 M. The sensor also showed high stability, reproducibility, and repeatability. Furthermore, the sensor has shown high selectivity towards glucose exclusively in the presence of interferents such as sucrose, uric acid, and ascorbic acid. The practical applicability of the proposed sensor was confirmed from successful analysis of glucose in different juice samples and these results were comparable to the commercial glucose meter. Thus, our sensor stands promising non-enzymatic sensor for routine analysis of glucose.
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spelling doaj.art-dfc54966bb2c4aac86ae80714cd7dd942022-12-22T01:14:19ZengSlovenian Chemical SocietyActa Chimica Slovenica1318-02071580-31552018-09-0165368769710.17344/acsi.2018.4386618Amperometric Enzyme-free Glucose Sensor Based on Electrodeposition of Au Particles on Polyaniline Film Modified Pt ElectrodeYijun Tang0Shveta Malhotra1Pradeep K. Varshney2University of Wisconsin Oshkosh, USAResearch Scholar, UW-Oshkosh & MRIIRSManav Rachna International Institute of Research & Studies (MRIIRS)An amperometric non-enzymatic glucose sensor of high sensitivity was developed by modification of Pt electrode with electrodeposition of Au particles on polyaniline film. The Au particles were deposited under optimum growth conditions for maximum dispersion on polymer film to achieve highly sensitive glucose sensor. The characterization of the electrode and the analytical parameters were evaluated using chronoamperometry and cyclic voltammetry techniques. The sensor showed wide linear range from 0.01–8 mM along with swift response time of less than 5 s. Moreover, a high sensitivity of 113.6 A mM-1 cm-2 is obtained along with low detection limits of 0.5 M. The sensor also showed high stability, reproducibility, and repeatability. Furthermore, the sensor has shown high selectivity towards glucose exclusively in the presence of interferents such as sucrose, uric acid, and ascorbic acid. The practical applicability of the proposed sensor was confirmed from successful analysis of glucose in different juice samples and these results were comparable to the commercial glucose meter. Thus, our sensor stands promising non-enzymatic sensor for routine analysis of glucose.https://journals.matheo.si/index.php/ACSi/article/view/4386Non-EnzymaticGlucose sensorPolyanilineCyclic VoltammetryChronoamperometry
spellingShingle Yijun Tang
Shveta Malhotra
Pradeep K. Varshney
Amperometric Enzyme-free Glucose Sensor Based on Electrodeposition of Au Particles on Polyaniline Film Modified Pt Electrode
Acta Chimica Slovenica
Non-Enzymatic
Glucose sensor
Polyaniline
Cyclic Voltammetry
Chronoamperometry
title Amperometric Enzyme-free Glucose Sensor Based on Electrodeposition of Au Particles on Polyaniline Film Modified Pt Electrode
title_full Amperometric Enzyme-free Glucose Sensor Based on Electrodeposition of Au Particles on Polyaniline Film Modified Pt Electrode
title_fullStr Amperometric Enzyme-free Glucose Sensor Based on Electrodeposition of Au Particles on Polyaniline Film Modified Pt Electrode
title_full_unstemmed Amperometric Enzyme-free Glucose Sensor Based on Electrodeposition of Au Particles on Polyaniline Film Modified Pt Electrode
title_short Amperometric Enzyme-free Glucose Sensor Based on Electrodeposition of Au Particles on Polyaniline Film Modified Pt Electrode
title_sort amperometric enzyme free glucose sensor based on electrodeposition of au particles on polyaniline film modified pt electrode
topic Non-Enzymatic
Glucose sensor
Polyaniline
Cyclic Voltammetry
Chronoamperometry
url https://journals.matheo.si/index.php/ACSi/article/view/4386
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AT shvetamalhotra amperometricenzymefreeglucosesensorbasedonelectrodepositionofauparticlesonpolyanilinefilmmodifiedptelectrode
AT pradeepkvarshney amperometricenzymefreeglucosesensorbasedonelectrodepositionofauparticlesonpolyanilinefilmmodifiedptelectrode