Preparation of Nanofiber Test Strips Containing Sulfite‐Ion Fluorescent Probes Based on Poly(4‐Vinylpyridine)
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2026
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| author | Han Wang Yan Song Yaxing Dai Zhixue Li Qingbiao Yang |
| author_facet | Han Wang Yan Song Yaxing Dai Zhixue Li Qingbiao Yang Han Wang Yan Song Yaxing Dai Zhixue Li Qingbiao Yang |
| collection | Wiley Open Access |
| contents | Preparation of Nanofiber Test Strips Containing Sulfite‐Ion Fluorescent Probes Based on Poly(4‐Vinylpyridine) Han Wang Yan Song Yaxing Dai Zhixue Li Qingbiao Yang Journal of Applied Polymer Science ABSTRACT Sulfites and bisulfites in foods pose health risks, which drives the demand for effective sensing materials. This study fabricates two types of polymer‐based nanofiber test strips through physical doping and chemical grafting of a fluorescent probe (ISEV‐Indole Sulfonate Ethyl Vanillin) into poly(4‐vinylpyridine) (P4VP). The resulting materials, denoted P4VP NFTP@ISEV and P4VP‐ISEV NFTP, benefit from the high surface area of electrospun nanofibers and the specific molecular recognition capability of the probe. Both strips exhibit high specificity and sensitivity toward HSO 3 − , showing a dual‐wavelength fluorescence response characterized by a decrease at 600 nm and an increase at 460 nm. The detection limits are determined to be 1.51 × 10 −4 mol L −1 and 2.37 × 10 −5 mol L −1 , respectively, with minimal interference from common anions or thiols observed. The strips are successfully applied to detect HSO 3 − in real food and pharmaceutical samples, which demonstrates the potential of functional polymer nanofibers as practical sensing platforms for anion detection. 10.1002/app.70608 http://onlinelibrary.wiley.com/termsAndConditions#vor |
| doi_str_mv | 10.1002/app.70608 |
| format | Artículo Open Access |
| id | wiley_oa_10_1002_app_70608 |
| institution | Wiley Open Access |
| license_str_mv | http://onlinelibrary.wiley.com/termsAndConditions#vor |
| publishDate | 2026 |
| publisher | Wiley |
| record_format | wiley_oa |
| spellingShingle | Preparation of Nanofiber Test Strips Containing Sulfite‐Ion Fluorescent Probes Based on Poly(4‐Vinylpyridine) Han Wang Yan Song Yaxing Dai Zhixue Li Qingbiao Yang Journal of Applied Polymer Science Preparation of Nanofiber Test Strips Containing Sulfite‐Ion Fluorescent Probes Based on Poly(4‐Vinylpyridine) Han Wang Yan Song Yaxing Dai Zhixue Li Qingbiao Yang Journal of Applied Polymer Science ABSTRACT Sulfites and bisulfites in foods pose health risks, which drives the demand for effective sensing materials. This study fabricates two types of polymer‐based nanofiber test strips through physical doping and chemical grafting of a fluorescent probe (ISEV‐Indole Sulfonate Ethyl Vanillin) into poly(4‐vinylpyridine) (P4VP). The resulting materials, denoted P4VP NFTP@ISEV and P4VP‐ISEV NFTP, benefit from the high surface area of electrospun nanofibers and the specific molecular recognition capability of the probe. Both strips exhibit high specificity and sensitivity toward HSO 3 − , showing a dual‐wavelength fluorescence response characterized by a decrease at 600 nm and an increase at 460 nm. The detection limits are determined to be 1.51 × 10 −4 mol L −1 and 2.37 × 10 −5 mol L −1 , respectively, with minimal interference from common anions or thiols observed. The strips are successfully applied to detect HSO 3 − in real food and pharmaceutical samples, which demonstrates the potential of functional polymer nanofibers as practical sensing platforms for anion detection. 10.1002/app.70608 http://onlinelibrary.wiley.com/termsAndConditions#vor |
| title | Preparation of Nanofiber Test Strips Containing Sulfite‐Ion Fluorescent Probes Based on Poly(4‐Vinylpyridine) |
| topic | Journal of Applied Polymer Science |
| url | https://onlinelibrary.wiley.com/doi/10.1002/app.70608 |