A novel electrochemical biosensor for the detection of ethambutol
IR@NISCAIR: CSIR-NISCAIR, New Delhi - ONLINE PERIODICALS REPOSITORY (NOPR)
View Archive Info| Field | Value | |
| Title |
A novel electrochemical biosensor for the detection of ethambutol
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| Creator |
Chokkareddy, Rajasekhar
Bhajanthri, Natesh Kumar Redhi, Gan G |
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| Subject |
Electroanalytical chemistry
Biosensors Ethambutol Cyclic voltammetry Different pulse voltammetry |
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| Description |
887-895
A glassy carbon electrode (GCE) has been fabricated with zinc oxide nanoparticles (ZnONPs) and reduced graphene oxide (RGO) immobilized with horseradish peroxidase enzyme (HRP) for the voltammetric determination of ethambutol. Electrochemical behaviour of ethambutol has been studied with cyclic voltammetry and differential pulse voltammetry. The HRP-ZnONPs-RGO-GCE exhibits high electrooxidation of ethambutol in phosphate buffer solution at pH 7.0 and the electrochemical signal is significantly enhanced. In addition, the proposed biosensor has been characterized by transmission electron microscopy, Fourier transform infrared spectroscopy and X-ray diffraction. The HRP-ZnONPs-RGO-GCE shows an oxidation peak at –0.2 V with CV. Under the optimized conditions, the DPV technique gave good limit of detection and limit of quantification values of 0.0214 μM and 0.6713 μM respectively. The HRP-ZnONPs-RGO-GCE shows excellent background current stability and gives reliable performance with pharmaceutical samples in the terms of sensitivity, reproducibility and repeatability. |
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| Date |
2018-07-23T06:03:37Z
2018-07-23T06:03:37Z 2018-07 |
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| Type |
Article
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| Identifier |
0975-0975(Online); 0376-4710(Print)
http://nopr.niscair.res.in/handle/123456789/44743 |
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| Language |
en_US
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| Rights |
<img src='http://nopr.niscair.res.in/image/cc-license-sml.png'> <a href='http://creativecommons.org/licenses/by-nc-nd/2.5/in' target='_blank'>CC Attribution-Noncommercial-No Derivative Works 2.5 India</a>
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| Publisher |
NISCAIR-CSIR, India
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| Source |
IJC-A Vol.57A(07) [July 2018]
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