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Enhanced direct electron transfer of redox protein based on multiporous SnO2 nanofiber-carbon nanotube nanocomposite and its application in biosensing

A novel third generation H2O2 biosensor is fabricated using multiporous SnO2 nanofiber/carbon nanotubes (CNTs) composite as a matrix for the immobilization of redox protein onto glassy carbon electrode. The multiporous nanofiber (MPNFs) of SnO2 is synthesized by electrospinning technique from the ti...

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Main Authors: Alim, Samiul, A. K. M., Kafi, Rajan, Jose, M. M., Yusoff, Jaya Vejayan, Palliah
Format: Article
Language:English
Published: Elsevier Ltd 2018
Subjects:
QD Chemistry
Online Access:http://umpir.ump.edu.my/id/eprint/21468/1/Enhanced%20Direct%20Electron%20Transfer%20Of%20Redox%20Protein.pdf
http://umpir.ump.edu.my/id/eprint/21468/
https://doi.org/10.1016/j.ijbiomac.2018.03.184
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spelling my.ump.umpir.214682018-07-26T02:34:20Z http://umpir.ump.edu.my/id/eprint/21468/ Enhanced direct electron transfer of redox protein based on multiporous SnO2 nanofiber-carbon nanotube nanocomposite and its application in biosensing Alim, Samiul A. K. M., Kafi Rajan, Jose M. M., Yusoff Jaya Vejayan, Palliah QD Chemistry A novel third generation H2O2 biosensor is fabricated using multiporous SnO2 nanofiber/carbon nanotubes (CNTs) composite as a matrix for the immobilization of redox protein onto glassy carbon electrode. The multiporous nanofiber (MPNFs) of SnO2 is synthesized by electrospinning technique from the tin precursor. This nanofiber shows high surface area and good electrical conductivity. The SnO2 nanofiber/CNT composite increases the efficiency of biomolecule loading due to its high surface area. The morphology of the nanofiber has been evaluated by scanning electron microscopy (SEM). Cyclic Voltammetry and amperometry technique are employed to study and optimize the performance of the fabricated electrode. A direct electron transfer between the protein's redox centre and the glassy carbon electrode is established after fabrication of the electrode. The fabricated electrode shows excellent electrocatalytic reduction to H2O2. The catalysis currents increases linearly to the H2O2 concentration in a wide range of 1.0 10−6–1.4 × 10−4 M and the lowest detection limit was 30 nM (S/N = 3). Moreover, the biosensor showed a rapid response to H2O2, a good stability and reproducibility. Elsevier Ltd 2018 Article PeerReviewed text en http://umpir.ump.edu.my/id/eprint/21468/1/Enhanced%20Direct%20Electron%20Transfer%20Of%20Redox%20Protein.pdf Alim, Samiul and A. K. M., Kafi and Rajan, Jose and M. M., Yusoff and Jaya Vejayan, Palliah (2018) Enhanced direct electron transfer of redox protein based on multiporous SnO2 nanofiber-carbon nanotube nanocomposite and its application in biosensing. International Journal of Biological Macromolecules, 114. pp. 1071-1076. ISSN 0141-8130 https://doi.org/10.1016/j.ijbiomac.2018.03.184 doi: 10.1016/j.ijbiomac.2018.03.184
institution Universiti Malaysia Pahang
building UMP Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Malaysia Pahang
content_source UMP Institutional Repository
url_provider http://umpir.ump.edu.my/
language English
topic QD Chemistry
spellingShingle QD Chemistry
Alim, Samiul
A. K. M., Kafi
Rajan, Jose
M. M., Yusoff
Jaya Vejayan, Palliah
Enhanced direct electron transfer of redox protein based on multiporous SnO2 nanofiber-carbon nanotube nanocomposite and its application in biosensing
description A novel third generation H2O2 biosensor is fabricated using multiporous SnO2 nanofiber/carbon nanotubes (CNTs) composite as a matrix for the immobilization of redox protein onto glassy carbon electrode. The multiporous nanofiber (MPNFs) of SnO2 is synthesized by electrospinning technique from the tin precursor. This nanofiber shows high surface area and good electrical conductivity. The SnO2 nanofiber/CNT composite increases the efficiency of biomolecule loading due to its high surface area. The morphology of the nanofiber has been evaluated by scanning electron microscopy (SEM). Cyclic Voltammetry and amperometry technique are employed to study and optimize the performance of the fabricated electrode. A direct electron transfer between the protein's redox centre and the glassy carbon electrode is established after fabrication of the electrode. The fabricated electrode shows excellent electrocatalytic reduction to H2O2. The catalysis currents increases linearly to the H2O2 concentration in a wide range of 1.0 10−6–1.4 × 10−4 M and the lowest detection limit was 30 nM (S/N = 3). Moreover, the biosensor showed a rapid response to H2O2, a good stability and reproducibility.
format Article
author Alim, Samiul
A. K. M., Kafi
Rajan, Jose
M. M., Yusoff
Jaya Vejayan, Palliah
author_facet Alim, Samiul
A. K. M., Kafi
Rajan, Jose
M. M., Yusoff
Jaya Vejayan, Palliah
author_sort Alim, Samiul
title Enhanced direct electron transfer of redox protein based on multiporous SnO2 nanofiber-carbon nanotube nanocomposite and its application in biosensing
title_short Enhanced direct electron transfer of redox protein based on multiporous SnO2 nanofiber-carbon nanotube nanocomposite and its application in biosensing
title_full Enhanced direct electron transfer of redox protein based on multiporous SnO2 nanofiber-carbon nanotube nanocomposite and its application in biosensing
title_fullStr Enhanced direct electron transfer of redox protein based on multiporous SnO2 nanofiber-carbon nanotube nanocomposite and its application in biosensing
title_full_unstemmed Enhanced direct electron transfer of redox protein based on multiporous SnO2 nanofiber-carbon nanotube nanocomposite and its application in biosensing
title_sort enhanced direct electron transfer of redox protein based on multiporous sno2 nanofiber-carbon nanotube nanocomposite and its application in biosensing
publisher Elsevier Ltd
publishDate 2018
url http://umpir.ump.edu.my/id/eprint/21468/1/Enhanced%20Direct%20Electron%20Transfer%20Of%20Redox%20Protein.pdf
http://umpir.ump.edu.my/id/eprint/21468/
https://doi.org/10.1016/j.ijbiomac.2018.03.184
_version_ 1643669138379374592
score 13.211869

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