Functionalised zinc oxide nanotube arrays as electrochemical sensors for the selective determination of glucose
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The Institution of Engineering and Technology
2012
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my.unimap-186442012-03-30T06:50:37Z Functionalised zinc oxide nanotube arrays as electrochemical sensors for the selective determination of glucose Syed Muhammad Usman, Ali Mohammad, Kasfhi Zafar Hussain, Ibupoto Muhammad, Fakhar-e-Alam Uda, Hashim, Prof. Dr. Magnus, Willander Aqueous chemical growth Ascorbic acids Concentration ranges lectrochemical response Glass substrates Gold-coated High sensitivity Immobilisation Interferents Low temperatures Nafion coating Nanotube arrays Physical adsorption method Reproducibilities Selective determination Uric acids ZnO nanorod Link to publisher's homepage at http://www.theiet.org/ In the present study, highly oriented single-crystal zinc oxide nanotube (ZnO-NT) arrays were prepared by a trimming of ZnO nanorods along the c-axis on the gold-coated glass substrate having a diameter of 100-200nm and a length of ∼1m using a low-temperature aqueous chemical growth process. The prepared (ZnO-NT) arrays were further used as electrochemical enzyme-based glucose sensors through immobilisation of glucose oxidase by the physical adsorption method in conjunction with a Nafion coating. The electrochemical response of the sensor was found to be linear over a relatively wide logarithmic concentration range from 0.5×10 -6 to 12×10 -3M. The proposed sensor showed a high sensitivity of 69.12mV/decade with R=0.9934 for sensing of glucose. A fast-response time less than 4s with good selectivity, reproducibility and negligible response to common interferents such as ascorbic acid and uric acid prevailed. 2012-03-30T06:50:37Z 2012-03-30T06:50:37Z 2011-08 Article Micro and Nano Letters, vol. 6 (8), 2011, pages 609-613 1750-0443 http://ieeexplore.ieee.org/xpls/abs_all.jsp?arnumber=6012997&tag=1 http://hdl.handle.net/123456789/18644 en The Institution of Engineering and Technology |
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English |
| topic |
Aqueous chemical growth Ascorbic acids Concentration ranges lectrochemical response Glass substrates Gold-coated High sensitivity Immobilisation Interferents Low temperatures Nafion coating Nanotube arrays Physical adsorption method Reproducibilities Selective determination Uric acids ZnO nanorod |
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Aqueous chemical growth Ascorbic acids Concentration ranges lectrochemical response Glass substrates Gold-coated High sensitivity Immobilisation Interferents Low temperatures Nafion coating Nanotube arrays Physical adsorption method Reproducibilities Selective determination Uric acids ZnO nanorod Syed Muhammad Usman, Ali Mohammad, Kasfhi Zafar Hussain, Ibupoto Muhammad, Fakhar-e-Alam Uda, Hashim, Prof. Dr. Magnus, Willander Functionalised zinc oxide nanotube arrays as electrochemical sensors for the selective determination of glucose |
| description |
Link to publisher's homepage at http://www.theiet.org/ |
| format |
Article |
| author |
Syed Muhammad Usman, Ali Mohammad, Kasfhi Zafar Hussain, Ibupoto Muhammad, Fakhar-e-Alam Uda, Hashim, Prof. Dr. Magnus, Willander |
| author_facet |
Syed Muhammad Usman, Ali Mohammad, Kasfhi Zafar Hussain, Ibupoto Muhammad, Fakhar-e-Alam Uda, Hashim, Prof. Dr. Magnus, Willander |
| author_sort |
Syed Muhammad Usman, Ali |
| title |
Functionalised zinc oxide nanotube arrays as electrochemical sensors for the selective determination of glucose |
| title_short |
Functionalised zinc oxide nanotube arrays as electrochemical sensors for the selective determination of glucose |
| title_full |
Functionalised zinc oxide nanotube arrays as electrochemical sensors for the selective determination of glucose |
| title_fullStr |
Functionalised zinc oxide nanotube arrays as electrochemical sensors for the selective determination of glucose |
| title_full_unstemmed |
Functionalised zinc oxide nanotube arrays as electrochemical sensors for the selective determination of glucose |
| title_sort |
functionalised zinc oxide nanotube arrays as electrochemical sensors for the selective determination of glucose |
| publisher |
The Institution of Engineering and Technology |
| publishDate |
2012 |
| url |
http://dspace.unimap.edu.my/xmlui/handle/123456789/18644 |
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1643792512377159680 |
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13.214268 |