Surface plasmon sensor for lead ion (Pb2+) detection using graphene oxide – Gold coated tilted fiber Bragg grating
In this study, the use of a surface plasmon sensor based on a gold-coated tilted fiber Bragg grating (Au-TFBG) functionalized with graphene oxide (GO) for the detection of lead ions (Pb2+) was demonstrated. To facilitate the modification of the Au-TFBG’s gold surface, cysteamine (Cys) was employed t...
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| Format: | Article |
| Language: | English |
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Elsevier
2023-07-01
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| Series: | Results in Optics |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S2666950123001542 |
| _version_ | 1797733858382184448 |
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| author | Waldo Udos Cheong-Weng Ooi Kok-Sing Lim Norazriena Yusof May-Lee Low Rozalina Zakaria Wei Ru Wong Harith Ahmad |
| author_facet | Waldo Udos Cheong-Weng Ooi Kok-Sing Lim Norazriena Yusof May-Lee Low Rozalina Zakaria Wei Ru Wong Harith Ahmad |
| author_sort | Waldo Udos |
| collection | DOAJ |
| description | In this study, the use of a surface plasmon sensor based on a gold-coated tilted fiber Bragg grating (Au-TFBG) functionalized with graphene oxide (GO) for the detection of lead ions (Pb2+) was demonstrated. To facilitate the modification of the Au-TFBG’s gold surface, cysteamine (Cys) was employed to form a self-assembled monolayer (Cys-SAM). This step was essential for binding the GO sheets on the Au-TFBG surface via the amine functional groups of Cys. Subsequently, the GO-COOH sheets were adsorbed onto the Au-linker surfaces. The sensor’s performance was assessed using several divalent metal ions, including Pb2+, Co2+, Cd2+, Ni2+, Zn2+, and Cu2+. Notably, the sensor exhibited the highest sensitivity for Pb2+. The measured sensitivity and limit of detection (LOD) were recorded at 0.018 dB/µM and 0.711 µM, respectively. Overall, the results demonstrate the potential of the GO-Au-TFBG sensor for sensitive and selective detection of Pb2+ ions, a capability that holds significant importance in environmental monitoring and industrial applications. |
| first_indexed | 2024-03-12T12:35:42Z |
| format | Article |
| id | doaj.art-d4375e2d124d4dc5855ae709ef832f94 |
| institution | Directory Open Access Journal |
| issn | 2666-9501 |
| language | English |
| last_indexed | 2024-03-12T12:35:42Z |
| publishDate | 2023-07-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Results in Optics |
| spelling | doaj.art-d4375e2d124d4dc5855ae709ef832f942023-08-29T04:18:19ZengElsevierResults in Optics2666-95012023-07-0112100502Surface plasmon sensor for lead ion (Pb2+) detection using graphene oxide – Gold coated tilted fiber Bragg gratingWaldo Udos0Cheong-Weng Ooi1Kok-Sing Lim2Norazriena Yusof3May-Lee Low4Rozalina Zakaria5Wei Ru Wong6Harith Ahmad7Photonics Research Centre, University of Malaya, 50603 Kuala Lumpur, MalaysiaPhotonics Research Centre, University of Malaya, 50603 Kuala Lumpur, MalaysiaPhotonics Research Centre, University of Malaya, 50603 Kuala Lumpur, Malaysia; Corresponding author.Photonics Research Centre, University of Malaya, 50603 Kuala Lumpur, MalaysiaDepartment of Pharmaceutical Chemistry, Faculty of Pharmaceutical Sciences, UCSI University, No.1, Jalan Menara Gading, UCSI Heights 56000 Cheras, Kuala Lumpur, Malaysia; Centre for Cancer and Stem Cell Research, Institute for Research, Development and Innovation, International Medical University, 126, Jalan Jalil Perkasa 19, 57000 Bukit Jalil, Kuala Lumpur, MalaysiaPhotonics Research Centre, University of Malaya, 50603 Kuala Lumpur, MalaysiaDepartment of Electrical Engineering, Faculty of Engineering, University of Malaya, 50603 Kuala Lumpur, MalaysiaPhotonics Research Centre, University of Malaya, 50603 Kuala Lumpur, MalaysiaIn this study, the use of a surface plasmon sensor based on a gold-coated tilted fiber Bragg grating (Au-TFBG) functionalized with graphene oxide (GO) for the detection of lead ions (Pb2+) was demonstrated. To facilitate the modification of the Au-TFBG’s gold surface, cysteamine (Cys) was employed to form a self-assembled monolayer (Cys-SAM). This step was essential for binding the GO sheets on the Au-TFBG surface via the amine functional groups of Cys. Subsequently, the GO-COOH sheets were adsorbed onto the Au-linker surfaces. The sensor’s performance was assessed using several divalent metal ions, including Pb2+, Co2+, Cd2+, Ni2+, Zn2+, and Cu2+. Notably, the sensor exhibited the highest sensitivity for Pb2+. The measured sensitivity and limit of detection (LOD) were recorded at 0.018 dB/µM and 0.711 µM, respectively. Overall, the results demonstrate the potential of the GO-Au-TFBG sensor for sensitive and selective detection of Pb2+ ions, a capability that holds significant importance in environmental monitoring and industrial applications.http://www.sciencedirect.com/science/article/pii/S2666950123001542Surface plasmon resonanceGraphene oxideLead ionsTilted fiber grating |
| spellingShingle | Waldo Udos Cheong-Weng Ooi Kok-Sing Lim Norazriena Yusof May-Lee Low Rozalina Zakaria Wei Ru Wong Harith Ahmad Surface plasmon sensor for lead ion (Pb2+) detection using graphene oxide – Gold coated tilted fiber Bragg grating Results in Optics Surface plasmon resonance Graphene oxide Lead ions Tilted fiber grating |
| title | Surface plasmon sensor for lead ion (Pb2+) detection using graphene oxide – Gold coated tilted fiber Bragg grating |
| title_full | Surface plasmon sensor for lead ion (Pb2+) detection using graphene oxide – Gold coated tilted fiber Bragg grating |
| title_fullStr | Surface plasmon sensor for lead ion (Pb2+) detection using graphene oxide – Gold coated tilted fiber Bragg grating |
| title_full_unstemmed | Surface plasmon sensor for lead ion (Pb2+) detection using graphene oxide – Gold coated tilted fiber Bragg grating |
| title_short | Surface plasmon sensor for lead ion (Pb2+) detection using graphene oxide – Gold coated tilted fiber Bragg grating |
| title_sort | surface plasmon sensor for lead ion pb2 detection using graphene oxide gold coated tilted fiber bragg grating |
| topic | Surface plasmon resonance Graphene oxide Lead ions Tilted fiber grating |
| url | http://www.sciencedirect.com/science/article/pii/S2666950123001542 |
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