Fiber-based surface plasmon resonance biosensor for Leptospira DNA detection
Fiber-based surface plasmon resonance (SPR) sensors are the ideal configuration for rapid and label-free biomolecule detection. Gold-coated tapered optical fiber was used to excite the SPR mode that propagates at the metal-dielectric interface. By forming self-assembled monolayers (SAMs) of active c...
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my.utm.1044372024-02-04T10:03:49Z http://eprints.utm.my/104437/ Fiber-based surface plasmon resonance biosensor for Leptospira DNA detection Suhailin, Fariza H. Alwahib, Ali A. Chee, Hui Y. Mustafa, Fatin H. Hamzah, Amir S. A. Zainuddin, Nurul H. Omar, Muhammad F. A. Razak, Anis A. Mahdi, Mohd. A. QC Physics Fiber-based surface plasmon resonance (SPR) sensors are the ideal configuration for rapid and label-free biomolecule detection. Gold-coated tapered optical fiber was used to excite the SPR mode that propagates at the metal-dielectric interface. By forming self-assembled monolayers (SAMs) of active chemical functional groups, the deoxyribonucleic acid (DNA) probe targeting the secY gene of Leptospira was immobilized onto the sensor surface. Red shifts in the SPR wavelengths were observed at different concentrations of leptospiral DNA target against the immobilized DNA probe due to the ability of plasmonic interaction to sensitively detect the binding of biomolecules on the sensor area. The developed sensor showed satisfactory linear responses at two target concentration ranges, low (1.0 fM to 1.0 pM) and high (0.1 nM to 1.0µM), with the highest sensitivity of 1.22 nm per log M. The negative control test also revealed high sensor specificity toward the complementary DNA strand. This sensor will represent a significant step toward laboratory-free diagnosis of leptospirosis. Institute of Electrical and Electronics Engineers Inc. 2022 Article PeerReviewed Suhailin, Fariza H. and Alwahib, Ali A. and Chee, Hui Y. and Mustafa, Fatin H. and Hamzah, Amir S. A. and Zainuddin, Nurul H. and Omar, Muhammad F. and A. Razak, Anis A. and Mahdi, Mohd. A. (2022) Fiber-based surface plasmon resonance biosensor for Leptospira DNA detection. IEEE Sensors Journal, 22 (21). pp. 20516-20523. ISSN 1530-437X http://dx.doi.org/10.1109/JSEN.2022.3207498 DOI : 10.1109/JSEN.2022.3207498 |
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QC Physics Suhailin, Fariza H. Alwahib, Ali A. Chee, Hui Y. Mustafa, Fatin H. Hamzah, Amir S. A. Zainuddin, Nurul H. Omar, Muhammad F. A. Razak, Anis A. Mahdi, Mohd. A. Fiber-based surface plasmon resonance biosensor for Leptospira DNA detection |
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Fiber-based surface plasmon resonance (SPR) sensors are the ideal configuration for rapid and label-free biomolecule detection. Gold-coated tapered optical fiber was used to excite the SPR mode that propagates at the metal-dielectric interface. By forming self-assembled monolayers (SAMs) of active chemical functional groups, the deoxyribonucleic acid (DNA) probe targeting the secY gene of Leptospira was immobilized onto the sensor surface. Red shifts in the SPR wavelengths were observed at different concentrations of leptospiral DNA target against the immobilized DNA probe due to the ability of plasmonic interaction to sensitively detect the binding of biomolecules on the sensor area. The developed sensor showed satisfactory linear responses at two target concentration ranges, low (1.0 fM to 1.0 pM) and high (0.1 nM to 1.0µM), with the highest sensitivity of 1.22 nm per log M. The negative control test also revealed high sensor specificity toward the complementary DNA strand. This sensor will represent a significant step toward laboratory-free diagnosis of leptospirosis. |
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Suhailin, Fariza H. Alwahib, Ali A. Chee, Hui Y. Mustafa, Fatin H. Hamzah, Amir S. A. Zainuddin, Nurul H. Omar, Muhammad F. A. Razak, Anis A. Mahdi, Mohd. A. |
author_facet |
Suhailin, Fariza H. Alwahib, Ali A. Chee, Hui Y. Mustafa, Fatin H. Hamzah, Amir S. A. Zainuddin, Nurul H. Omar, Muhammad F. A. Razak, Anis A. Mahdi, Mohd. A. |
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Suhailin, Fariza H. |
title |
Fiber-based surface plasmon resonance biosensor for Leptospira DNA detection |
title_short |
Fiber-based surface plasmon resonance biosensor for Leptospira DNA detection |
title_full |
Fiber-based surface plasmon resonance biosensor for Leptospira DNA detection |
title_fullStr |
Fiber-based surface plasmon resonance biosensor for Leptospira DNA detection |
title_full_unstemmed |
Fiber-based surface plasmon resonance biosensor for Leptospira DNA detection |
title_sort |
fiber-based surface plasmon resonance biosensor for leptospira dna detection |
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Institute of Electrical and Electronics Engineers Inc. |
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2022 |
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http://eprints.utm.my/104437/ http://dx.doi.org/10.1109/JSEN.2022.3207498 |
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