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Tin Oxide Nanorod Array-Based Electrochemical Hydrogen Peroxide Biosensor
SnO(2) nanorod array grown directly on alloy substrate has been employed as the working electrode of H(2)O(2) biosensor. Single-crystalline SnO(2) nanorods provide not only low isoelectric point and enough void spaces for facile horseradish peroxidase (HRP) immobilization but also numerous conductiv...
Autores principales: | , , , |
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Formato: | Texto |
Lenguaje: | English |
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Springer
2010
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Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2894215/ https://www.ncbi.nlm.nih.gov/pubmed/20596358 http://dx.doi.org/10.1007/s11671-010-9622-1 |
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author | Liu, Jinping Li, Yuanyuan Huang, Xintang Zhu, Zhihong |
author_facet | Liu, Jinping Li, Yuanyuan Huang, Xintang Zhu, Zhihong |
author_sort | Liu, Jinping |
collection | PubMed |
description | SnO(2) nanorod array grown directly on alloy substrate has been employed as the working electrode of H(2)O(2) biosensor. Single-crystalline SnO(2) nanorods provide not only low isoelectric point and enough void spaces for facile horseradish peroxidase (HRP) immobilization but also numerous conductive channels for electron transport to and from current collector; thus, leading to direct electrochemistry of HRP. The nanorod array-based biosensor demonstrates high H(2)O(2) sensing performance in terms of excellent sensitivity (379 μA mM(−1) cm(−2)), low detection limit (0.2 μM) and high selectivity with the apparent Michaelis–Menten constant estimated to be as small as 33.9 μM. Our work further demonstrates the advantages of ordered array architecture in electrochemical device application and sheds light on the construction of other high-performance enzymatic biosensors. |
format | Text |
id | pubmed-2894215 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2010 |
publisher | Springer |
record_format | MEDLINE/PubMed |
spelling | pubmed-28942152010-06-30 Tin Oxide Nanorod Array-Based Electrochemical Hydrogen Peroxide Biosensor Liu, Jinping Li, Yuanyuan Huang, Xintang Zhu, Zhihong Nanoscale Res Lett Nano Express SnO(2) nanorod array grown directly on alloy substrate has been employed as the working electrode of H(2)O(2) biosensor. Single-crystalline SnO(2) nanorods provide not only low isoelectric point and enough void spaces for facile horseradish peroxidase (HRP) immobilization but also numerous conductive channels for electron transport to and from current collector; thus, leading to direct electrochemistry of HRP. The nanorod array-based biosensor demonstrates high H(2)O(2) sensing performance in terms of excellent sensitivity (379 μA mM(−1) cm(−2)), low detection limit (0.2 μM) and high selectivity with the apparent Michaelis–Menten constant estimated to be as small as 33.9 μM. Our work further demonstrates the advantages of ordered array architecture in electrochemical device application and sheds light on the construction of other high-performance enzymatic biosensors. Springer 2010-05-11 /pmc/articles/PMC2894215/ /pubmed/20596358 http://dx.doi.org/10.1007/s11671-010-9622-1 Text en Copyright © 2010 The Author(s) https://creativecommons.org/licenses/by-nc/4.0/ This article is distributed under the terms of the Creative Commons Attribution Noncommercial License which permits any noncommercial use, distribution, and reproduction in any medium, provided the original author(s) and source are credited. |
spellingShingle | Nano Express Liu, Jinping Li, Yuanyuan Huang, Xintang Zhu, Zhihong Tin Oxide Nanorod Array-Based Electrochemical Hydrogen Peroxide Biosensor |
title | Tin Oxide Nanorod Array-Based Electrochemical Hydrogen Peroxide Biosensor |
title_full | Tin Oxide Nanorod Array-Based Electrochemical Hydrogen Peroxide Biosensor |
title_fullStr | Tin Oxide Nanorod Array-Based Electrochemical Hydrogen Peroxide Biosensor |
title_full_unstemmed | Tin Oxide Nanorod Array-Based Electrochemical Hydrogen Peroxide Biosensor |
title_short | Tin Oxide Nanorod Array-Based Electrochemical Hydrogen Peroxide Biosensor |
title_sort | tin oxide nanorod array-based electrochemical hydrogen peroxide biosensor |
topic | Nano Express |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2894215/ https://www.ncbi.nlm.nih.gov/pubmed/20596358 http://dx.doi.org/10.1007/s11671-010-9622-1 |
work_keys_str_mv | AT liujinping tinoxidenanorodarraybasedelectrochemicalhydrogenperoxidebiosensor AT liyuanyuan tinoxidenanorodarraybasedelectrochemicalhydrogenperoxidebiosensor AT huangxintang tinoxidenanorodarraybasedelectrochemicalhydrogenperoxidebiosensor AT zhuzhihong tinoxidenanorodarraybasedelectrochemicalhydrogenperoxidebiosensor |