Modification strategy of screen-printed carbon electrode with functionalized multi-walled carbon nanotube and chitosan matrix for biosensor development
Biosensor is a rapid technique to determine the analyte based on the incorporation of bioactive materials with physio-chemical transducing element. In this work, multi-walled carbon nanotube (MWCNT) was functionalized with carboxylic groups and mixed with chitosan (CS) prior to drop casting on scree...
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Asian Publication Corporation
2017
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Online Access: | http://psasir.upm.edu.my/id/eprint/51980/1/Modification%20strategy%20of%20screen-printed%20carbon%20electrode%20with%20functionalized%20multi-walled%20carbon%20nanotube%20and%20chitosan%20matrix%20for%20biosensor%20development.pdf http://psasir.upm.edu.my/id/eprint/51980/ http://www.asianjournalofchemistry.co.in/user/journal/viewarticle.aspx?ArticleID=29_1_8 |
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my.upm.eprints.519802017-05-04T04:44:31Z http://psasir.upm.edu.my/id/eprint/51980/ Modification strategy of screen-printed carbon electrode with functionalized multi-walled carbon nanotube and chitosan matrix for biosensor development Azri, Farah Asilah Sukor, Rashidah Hajian, Reza Yusof, Nor Azah Abu Bakar, Fatimah Selamat, Jinap Biosensor is a rapid technique to determine the analyte based on the incorporation of bioactive materials with physio-chemical transducing element. In this work, multi-walled carbon nanotube (MWCNT) was functionalized with carboxylic groups and mixed with chitosan (CS) prior to drop casting on screen-printed carbon electrode (SPCE). The acid treatment of multi-walled carbon nanotube by using mixture of H2SO4 and HNO3 in 3:2 ratio was better compared to treatment by piranha solution, in terms of carboxylic group attachment and capacitance effect on the current response. The functionalized carbon nanotubes were characterized by using fourier transform infrared spectroscopy, field emission scanning electron microscopy and cyclic voltammetry analysis. Few modification parameters have been optimized to maximize the performance of working electrode including ratio of MWCNT:CS, coating volume and drying method. The addition of MWCNT/CS matrix on the screen-printed carbon electrode greatly enhanced the electron transfer rate and increased the electrode active surface area for further immobilization of bioactive components. Asian Publication Corporation 2017 Article PeerReviewed application/pdf en http://psasir.upm.edu.my/id/eprint/51980/1/Modification%20strategy%20of%20screen-printed%20carbon%20electrode%20with%20functionalized%20multi-walled%20carbon%20nanotube%20and%20chitosan%20matrix%20for%20biosensor%20development.pdf Azri, Farah Asilah and Sukor, Rashidah and Hajian, Reza and Yusof, Nor Azah and Abu Bakar, Fatimah and Selamat, Jinap (2017) Modification strategy of screen-printed carbon electrode with functionalized multi-walled carbon nanotube and chitosan matrix for biosensor development. Asian Journal of Chemistry, 29 (1). pp. 31-36. ISSN 0970-7077; ESSN: 0975-427X http://www.asianjournalofchemistry.co.in/user/journal/viewarticle.aspx?ArticleID=29_1_8 |
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Biosensor is a rapid technique to determine the analyte based on the incorporation of bioactive materials with physio-chemical transducing element. In this work, multi-walled carbon nanotube (MWCNT) was functionalized with carboxylic groups and mixed with chitosan (CS) prior to drop casting on screen-printed carbon electrode (SPCE). The acid treatment of multi-walled carbon nanotube by using mixture of H2SO4 and HNO3 in 3:2 ratio was better compared to treatment by piranha solution, in terms of carboxylic group attachment and capacitance effect on the current response. The functionalized carbon nanotubes were characterized by using fourier transform infrared spectroscopy, field emission scanning electron microscopy and cyclic voltammetry analysis. Few modification parameters have been optimized to maximize the performance of working electrode including ratio of MWCNT:CS, coating volume and drying method. The addition of MWCNT/CS matrix on the screen-printed carbon electrode greatly enhanced the electron transfer rate and increased the electrode active surface area for further immobilization of bioactive components. |
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Azri, Farah Asilah Sukor, Rashidah Hajian, Reza Yusof, Nor Azah Abu Bakar, Fatimah Selamat, Jinap |
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Azri, Farah Asilah Sukor, Rashidah Hajian, Reza Yusof, Nor Azah Abu Bakar, Fatimah Selamat, Jinap Modification strategy of screen-printed carbon electrode with functionalized multi-walled carbon nanotube and chitosan matrix for biosensor development |
author_facet |
Azri, Farah Asilah Sukor, Rashidah Hajian, Reza Yusof, Nor Azah Abu Bakar, Fatimah Selamat, Jinap |
author_sort |
Azri, Farah Asilah |
title |
Modification strategy of screen-printed carbon electrode with functionalized multi-walled carbon nanotube and chitosan matrix for biosensor development |
title_short |
Modification strategy of screen-printed carbon electrode with functionalized multi-walled carbon nanotube and chitosan matrix for biosensor development |
title_full |
Modification strategy of screen-printed carbon electrode with functionalized multi-walled carbon nanotube and chitosan matrix for biosensor development |
title_fullStr |
Modification strategy of screen-printed carbon electrode with functionalized multi-walled carbon nanotube and chitosan matrix for biosensor development |
title_full_unstemmed |
Modification strategy of screen-printed carbon electrode with functionalized multi-walled carbon nanotube and chitosan matrix for biosensor development |
title_sort |
modification strategy of screen-printed carbon electrode with functionalized multi-walled carbon nanotube and chitosan matrix for biosensor development |
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Asian Publication Corporation |
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2017 |
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http://psasir.upm.edu.my/id/eprint/51980/1/Modification%20strategy%20of%20screen-printed%20carbon%20electrode%20with%20functionalized%20multi-walled%20carbon%20nanotube%20and%20chitosan%20matrix%20for%20biosensor%20development.pdf http://psasir.upm.edu.my/id/eprint/51980/ http://www.asianjournalofchemistry.co.in/user/journal/viewarticle.aspx?ArticleID=29_1_8 |
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