Acrylic Microspheres-Based Optosensor for Visual Detection Of Nitrite
A new optosensor for visual quantitation of nitrite (NO2−) ion has been fabricated by physically immobilizing Safranine O (SO) reagent onto a self-adhesive poly(n-butyl acrylate) [poly(nBA)] microspheres matrix, which was synthesized via facile microemulsion UV lithography technique. Evaluation and...
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| Format: | Article |
| Language: | English |
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Elsevier Ltd
2016
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| Online Access: | http://umpir.ump.edu.my/id/eprint/13441/ http://umpir.ump.edu.my/id/eprint/13441/1/Acrylic%20Microspheres-Based%20Optosensor%20for%20Visual%20Detection%20Of%20Nitrite.pdf |
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| author | Nur Syarmim, Mohamed Noor Ling, Tanling Lee, Yook Heng Chong, Kwok Feng Saiful Nizam, Tajuddin |
| author_facet | Nur Syarmim, Mohamed Noor Ling, Tanling Lee, Yook Heng Chong, Kwok Feng Saiful Nizam, Tajuddin |
| author_sort | Nur Syarmim, Mohamed Noor |
| building | UMP Institutional Repository |
| collection | Online Access |
| description | A new optosensor for visual quantitation of nitrite (NO2−) ion has been fabricated by physically immobilizing Safranine O (SO) reagent onto a self-adhesive poly(n-butyl acrylate) [poly(nBA)] microspheres matrix, which was synthesized via facile microemulsion UV lithography technique. Evaluation and optimization of the optical NO2− ion sensor was performed with a fiber optic reflectance spectrophotometer. Scanning electron micrograph showed well-shaped and smooth spherical morphology of the poly(nBA) microspheres with a narrow particles size distribution from 0.6 μm up to 1.8 μm. The uniform size distribution of the acrylic microspheres promoted homogeneity of the immobilized SO reagent molecules on the microspheres’ surfaces, thereby enhanced the sensing response reproducibility (<5% RSD) with a linear range obtained from 10 to 100 ppm NO2− ion. The micro-sized acrylic immobilization matrix demonstrated no significant barrier for diffusion of reactant and product, and served as a good solid state ion transport medium for reflectometric nitrite determination in food samples. |
| first_indexed | 2025-11-15T01:54:07Z |
| format | Article |
| id | ump-13441 |
| institution | Universiti Malaysia Pahang |
| institution_category | Local University |
| language | English |
| last_indexed | 2025-11-15T01:54:07Z |
| publishDate | 2016 |
| publisher | Elsevier Ltd |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | ump-134412018-07-25T03:06:56Z http://umpir.ump.edu.my/id/eprint/13441/ Acrylic Microspheres-Based Optosensor for Visual Detection Of Nitrite Nur Syarmim, Mohamed Noor Ling, Tanling Lee, Yook Heng Chong, Kwok Feng Saiful Nizam, Tajuddin Q Science (General) A new optosensor for visual quantitation of nitrite (NO2−) ion has been fabricated by physically immobilizing Safranine O (SO) reagent onto a self-adhesive poly(n-butyl acrylate) [poly(nBA)] microspheres matrix, which was synthesized via facile microemulsion UV lithography technique. Evaluation and optimization of the optical NO2− ion sensor was performed with a fiber optic reflectance spectrophotometer. Scanning electron micrograph showed well-shaped and smooth spherical morphology of the poly(nBA) microspheres with a narrow particles size distribution from 0.6 μm up to 1.8 μm. The uniform size distribution of the acrylic microspheres promoted homogeneity of the immobilized SO reagent molecules on the microspheres’ surfaces, thereby enhanced the sensing response reproducibility (<5% RSD) with a linear range obtained from 10 to 100 ppm NO2− ion. The micro-sized acrylic immobilization matrix demonstrated no significant barrier for diffusion of reactant and product, and served as a good solid state ion transport medium for reflectometric nitrite determination in food samples. Elsevier Ltd 2016 Article PeerReviewed application/pdf en http://umpir.ump.edu.my/id/eprint/13441/1/Acrylic%20Microspheres-Based%20Optosensor%20for%20Visual%20Detection%20Of%20Nitrite.pdf Nur Syarmim, Mohamed Noor and Ling, Tanling and Lee, Yook Heng and Chong, Kwok Feng and Saiful Nizam, Tajuddin (2016) Acrylic Microspheres-Based Optosensor for Visual Detection Of Nitrite. Food Chemistry, 207. pp. 132-138. ISSN 0308-8146. (Published) http://dx.doi.org/10.1016/j.foodchem.2016.03.088 DOI: 10.1016/j.foodchem.2016.03.088 |
| spellingShingle | Q Science (General) Nur Syarmim, Mohamed Noor Ling, Tanling Lee, Yook Heng Chong, Kwok Feng Saiful Nizam, Tajuddin Acrylic Microspheres-Based Optosensor for Visual Detection Of Nitrite |
| title | Acrylic Microspheres-Based Optosensor for Visual Detection Of Nitrite |
| title_full | Acrylic Microspheres-Based Optosensor for Visual Detection Of Nitrite |
| title_fullStr | Acrylic Microspheres-Based Optosensor for Visual Detection Of Nitrite |
| title_full_unstemmed | Acrylic Microspheres-Based Optosensor for Visual Detection Of Nitrite |
| title_short | Acrylic Microspheres-Based Optosensor for Visual Detection Of Nitrite |
| title_sort | acrylic microspheres-based optosensor for visual detection of nitrite |
| topic | Q Science (General) |
| url | http://umpir.ump.edu.my/id/eprint/13441/ http://umpir.ump.edu.my/id/eprint/13441/ http://umpir.ump.edu.my/id/eprint/13441/ http://umpir.ump.edu.my/id/eprint/13441/1/Acrylic%20Microspheres-Based%20Optosensor%20for%20Visual%20Detection%20Of%20Nitrite.pdf |