A Glassy Carbon Electrode Modified With Sno2 Nanofibers, Polyaniline and Hemoglobin for Improved Amperometric Sensing of Hydrogen Peroxide

The authors describe a glassy carbon electrode (GCE) modified with a multiporous nanofibers prepared from SnO2, polyaniline and hemoglobin, and its application to the amperometric determination of hydrogen peroxide (H2O2). The SnO2 nanofibers were prepared first and then polymerized with polyaniline...

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Main Authors:	A. K. M., Kafi, Wali, Qamar, Rajan, Jose, Biswas, Tapan Kumar, M. M., Yusoff
Format:	Article
Language:	English
Published:	Springer Vienna 2017
Subjects:	QD Chemistry
Online Access:	http://umpir.ump.edu.my/id/eprint/18574/ http://umpir.ump.edu.my/id/eprint/18574/ http://umpir.ump.edu.my/id/eprint/18574/ http://umpir.ump.edu.my/id/eprint/18574/1/fist-2017-kafi-A%20Glassy%20Carbon%20Electrode%20Modified%20With%20Sno21.pdf

id	ump-18574
recordtype	eprints
spelling	ump-185742018-07-26T02:40:22Z http://umpir.ump.edu.my/id/eprint/18574/ A Glassy Carbon Electrode Modified With Sno2 Nanofibers, Polyaniline and Hemoglobin for Improved Amperometric Sensing of Hydrogen Peroxide A. K. M., Kafi Wali, Qamar Rajan, Jose Biswas, Tapan Kumar M. M., Yusoff QD Chemistry The authors describe a glassy carbon electrode (GCE) modified with a multiporous nanofibers prepared from SnO2, polyaniline and hemoglobin, and its application to the amperometric determination of hydrogen peroxide (H2O2). The SnO2 nanofibers were prepared first and then polymerized with polyaniline. Then, the redox protein hemoglobin was co-immobilized with the nanofibers on the surface of the GCE. Chitosan was finally used to improve the stability of the modified GCE. Direct electrochemistry of Hemoglobin at the modified electrode revealed a pair of well-defined redox peaks, with anodic and cathodic peaks at −0.15 and −0.3 V, respectively. The modified GCE exhibits high catalytic response to hydrogen peroxide. Best operated at −0.4 V (vs Ag/AgCl), it displays a linear amperometric response that covers the 2 to 160 μM H2O2 concentration range, with a lower detection limit of 0.5 μM. The biosensor has good storage stability, reproducibility and repeatability. Springer Vienna 2017-11-01 Article PeerReviewed application/pdf en http://umpir.ump.edu.my/id/eprint/18574/1/fist-2017-kafi-A%20Glassy%20Carbon%20Electrode%20Modified%20With%20Sno21.pdf A. K. M., Kafi and Wali, Qamar and Rajan, Jose and Biswas, Tapan Kumar and M. M., Yusoff (2017) A Glassy Carbon Electrode Modified With Sno2 Nanofibers, Polyaniline and Hemoglobin for Improved Amperometric Sensing of Hydrogen Peroxide. Microchimica Acta, 184 (11). pp. 4443-4450. ISSN 0026-3672 http://dx.doi.org/10.1007/s00604-017-2479-6 doi:10.1007/s00604-017-2479-6
repository_type	Digital Repository
institution_category	Local University
institution	Universiti Malaysia Pahang
building	UMP Institutional Repository
collection	Online Access
language	English
topic	QD Chemistry
spellingShingle	QD Chemistry A. K. M., Kafi Wali, Qamar Rajan, Jose Biswas, Tapan Kumar M. M., Yusoff A Glassy Carbon Electrode Modified With Sno2 Nanofibers, Polyaniline and Hemoglobin for Improved Amperometric Sensing of Hydrogen Peroxide
description	The authors describe a glassy carbon electrode (GCE) modified with a multiporous nanofibers prepared from SnO2, polyaniline and hemoglobin, and its application to the amperometric determination of hydrogen peroxide (H2O2). The SnO2 nanofibers were prepared first and then polymerized with polyaniline. Then, the redox protein hemoglobin was co-immobilized with the nanofibers on the surface of the GCE. Chitosan was finally used to improve the stability of the modified GCE. Direct electrochemistry of Hemoglobin at the modified electrode revealed a pair of well-defined redox peaks, with anodic and cathodic peaks at −0.15 and −0.3 V, respectively. The modified GCE exhibits high catalytic response to hydrogen peroxide. Best operated at −0.4 V (vs Ag/AgCl), it displays a linear amperometric response that covers the 2 to 160 μM H2O2 concentration range, with a lower detection limit of 0.5 μM. The biosensor has good storage stability, reproducibility and repeatability.
format	Article
author	A. K. M., Kafi Wali, Qamar Rajan, Jose Biswas, Tapan Kumar M. M., Yusoff
author_facet	A. K. M., Kafi Wali, Qamar Rajan, Jose Biswas, Tapan Kumar M. M., Yusoff
author_sort	A. K. M., Kafi
title	A Glassy Carbon Electrode Modified With Sno2 Nanofibers, Polyaniline and Hemoglobin for Improved Amperometric Sensing of Hydrogen Peroxide
title_short	A Glassy Carbon Electrode Modified With Sno2 Nanofibers, Polyaniline and Hemoglobin for Improved Amperometric Sensing of Hydrogen Peroxide
title_full	A Glassy Carbon Electrode Modified With Sno2 Nanofibers, Polyaniline and Hemoglobin for Improved Amperometric Sensing of Hydrogen Peroxide
title_fullStr	A Glassy Carbon Electrode Modified With Sno2 Nanofibers, Polyaniline and Hemoglobin for Improved Amperometric Sensing of Hydrogen Peroxide
title_full_unstemmed	A Glassy Carbon Electrode Modified With Sno2 Nanofibers, Polyaniline and Hemoglobin for Improved Amperometric Sensing of Hydrogen Peroxide
title_sort	glassy carbon electrode modified with sno2 nanofibers, polyaniline and hemoglobin for improved amperometric sensing of hydrogen peroxide
publisher	Springer Vienna
publishDate	2017
url	http://umpir.ump.edu.my/id/eprint/18574/ http://umpir.ump.edu.my/id/eprint/18574/ http://umpir.ump.edu.my/id/eprint/18574/ http://umpir.ump.edu.my/id/eprint/18574/1/fist-2017-kafi-A%20Glassy%20Carbon%20Electrode%20Modified%20With%20Sno21.pdf
first_indexed	2023-09-18T22:26:23Z
last_indexed	2023-09-18T22:26:23Z
_version_	1777415994481836032

A Glassy Carbon Electrode Modified With Sno2 Nanofibers, Polyaniline and Hemoglobin for Improved Amperometric Sensing of Hydrogen Peroxide

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