Gold nanoplates for a localized surface plasmon resonance-based boric acid sensor
Localized surface plasmon resonance (LSPR) properties of metallic nanostructures, such as gold, are very sensitive to the dielectric environment of the material, which can simply be adjusted by changing its shape and size through modification of the synthesizing process. Thus, these unique propertie...
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MDPI
2017
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| Online Access: | http://eprints.uthm.edu.my/4197/ http://eprints.uthm.edu.my/4197/1/AJ%202017%20%28117%29%20Gold%20nanoplates%20for%20a%20localized%20surface%20plasmon.pdf |
| _version_ | 1848888222034165760 |
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| author | Morsin, Marlia Mat Salleh, Muhamad Umar, Akrajas Ali Sahdan, Mohd Zainizan |
| author_facet | Morsin, Marlia Mat Salleh, Muhamad Umar, Akrajas Ali Sahdan, Mohd Zainizan |
| author_sort | Morsin, Marlia |
| building | UTHM Institutional Repository |
| collection | Online Access |
| description | Localized surface plasmon resonance (LSPR) properties of metallic nanostructures, such as gold, are very sensitive to the dielectric environment of the material, which can simply be adjusted by changing its shape and size through modification of the synthesizing process. Thus, these unique properties are very promising, particularly for the detection of various types of chemicals, for example boric acid which is a non-permitted preservative employed in food preparations. For the sensing material, gold (Au) nanoplates with a variety of shapes, i.e., triangular, hexagonal, truncated pentagon and flat rod, were prepared using a seed-mediated growth method. The yield of Au nanoplates was estimated to be ca. 63% over all areas of the sensing material. The nanoplates produced two absorption bands, i.e., the transverse surface plasmon resonance (t-SPR) and the longitudinal surface plasmon resonance (l-SPR) at 545 nm and 710 nm, respectively. In the sensing study, these two bands were used to examine the response of gold nanoplates to the presence of boric acid in an aqueous environment. In a typical process, when the sample is immersed into an aqueous solution containing boric acid, these two bands may change their intensity and peak centers as a result of the interaction between the boric acid and the gold nanoplates. The changes in the intensities and peak positions of t-SPR and l-SPR linearly correlated with the change in the boric acid concentration in the solution. |
| first_indexed | 2025-11-15T20:06:51Z |
| format | Article |
| id | uthm-4197 |
| institution | Universiti Tun Hussein Onn Malaysia |
| institution_category | Local University |
| language | English |
| last_indexed | 2025-11-15T20:06:51Z |
| publishDate | 2017 |
| publisher | MDPI |
| recordtype | eprints |
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| spelling | uthm-41972021-11-28T07:51:19Z http://eprints.uthm.edu.my/4197/ Gold nanoplates for a localized surface plasmon resonance-based boric acid sensor Morsin, Marlia Mat Salleh, Muhamad Umar, Akrajas Ali Sahdan, Mohd Zainizan QC170-197 Atomic physics. Constitution and properties of matter. Including molecular physics, relativity, quantum theory, and solid state physics TK7800-8360 Electronics Localized surface plasmon resonance (LSPR) properties of metallic nanostructures, such as gold, are very sensitive to the dielectric environment of the material, which can simply be adjusted by changing its shape and size through modification of the synthesizing process. Thus, these unique properties are very promising, particularly for the detection of various types of chemicals, for example boric acid which is a non-permitted preservative employed in food preparations. For the sensing material, gold (Au) nanoplates with a variety of shapes, i.e., triangular, hexagonal, truncated pentagon and flat rod, were prepared using a seed-mediated growth method. The yield of Au nanoplates was estimated to be ca. 63% over all areas of the sensing material. The nanoplates produced two absorption bands, i.e., the transverse surface plasmon resonance (t-SPR) and the longitudinal surface plasmon resonance (l-SPR) at 545 nm and 710 nm, respectively. In the sensing study, these two bands were used to examine the response of gold nanoplates to the presence of boric acid in an aqueous environment. In a typical process, when the sample is immersed into an aqueous solution containing boric acid, these two bands may change their intensity and peak centers as a result of the interaction between the boric acid and the gold nanoplates. The changes in the intensities and peak positions of t-SPR and l-SPR linearly correlated with the change in the boric acid concentration in the solution. MDPI 2017 Article PeerReviewed text en http://eprints.uthm.edu.my/4197/1/AJ%202017%20%28117%29%20Gold%20nanoplates%20for%20a%20localized%20surface%20plasmon.pdf Morsin, Marlia and Mat Salleh, Muhamad and Umar, Akrajas Ali and Sahdan, Mohd Zainizan (2017) Gold nanoplates for a localized surface plasmon resonance-based boric acid sensor. Sensors, 17 (947). pp. 1-9. ISSN 1424-8220 http://dx.doi.org/10.3390/s17050947 |
| spellingShingle | QC170-197 Atomic physics. Constitution and properties of matter. Including molecular physics, relativity, quantum theory, and solid state physics TK7800-8360 Electronics Morsin, Marlia Mat Salleh, Muhamad Umar, Akrajas Ali Sahdan, Mohd Zainizan Gold nanoplates for a localized surface plasmon resonance-based boric acid sensor |
| title | Gold nanoplates for a localized surface plasmon resonance-based boric acid sensor |
| title_full | Gold nanoplates for a localized surface plasmon resonance-based boric acid sensor |
| title_fullStr | Gold nanoplates for a localized surface plasmon resonance-based boric acid sensor |
| title_full_unstemmed | Gold nanoplates for a localized surface plasmon resonance-based boric acid sensor |
| title_short | Gold nanoplates for a localized surface plasmon resonance-based boric acid sensor |
| title_sort | gold nanoplates for a localized surface plasmon resonance-based boric acid sensor |
| topic | QC170-197 Atomic physics. Constitution and properties of matter. Including molecular physics, relativity, quantum theory, and solid state physics TK7800-8360 Electronics |
| url | http://eprints.uthm.edu.my/4197/ http://eprints.uthm.edu.my/4197/ http://eprints.uthm.edu.my/4197/1/AJ%202017%20%28117%29%20Gold%20nanoplates%20for%20a%20localized%20surface%20plasmon.pdf |