Academic Journal
Flexible disulfide-bridged hyperbranched poly(amido amine)s based nonconjugated carbonized polymer dots for iron (III) sensing and its application in meat by-product.
| Τίτλος: | Flexible disulfide-bridged hyperbranched poly(amido amine)s based nonconjugated carbonized polymer dots for iron (III) sensing and its application in meat by-product. |
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| Συγγραφείς: | Tian, Xiaoxian, Li, Liang, Yan, Chaoren, Wang, Zhenyu, Zheng, Xiaochun, Liu, Bai-Tong, Chen, Li, Li, Shaobo, Shang, Mengyu, Li, Cheng, Zhang, Dequan |
| Πηγή: | Spectrochimica Acta. Part A, Molecular and Biomolecular Spectroscopy, 358, 127837 (2026-10-05) |
| Στοιχεία εκδότη: | Elsevier BV, 2026. |
| Έτος έκδοσης: | 2026 |
| Θεματικοί όροι: | Carbonized polymer dots, Detection, Hyperbranched poly(amido amine)s, Iron, fluorescence, Limit of Detection, Meat/analysis, Polymers/chemistry, Ferric Compounds/analysis, Meat, Analytical Chemistry, Spectroscopy, Engineering, computing & technology, Materials science & engineering, Ingénierie, informatique & technologie, Science des matériaux & ingénierie |
| Περιγραφή: | Herein, a novel flexible disulfide-bridged hyperbranched poly(amido amine)s based nonconjugated carbonized polymer dots (ssHPA-CPDs) was developed using citric acid and ssHPA with disulfide bonds as precursors. The structure and composition of ssHPA-CPDs were characterized by transmission electron microscopy, X-ray photoelectron spectroscopy, Fourier transform infrared spectroscopy, raman spectroscopy, and small-X-ray scattering. The results show that when the mass ratio of ssHPA-CPDs/citric acid is 0.5, graphite nitrogen and thiophenone/thiazole sulfur occupy a dominant position, with a higher quantum yield (29.08%). The high disulfide bond content increases ssHPA-CPDs flexibility, leading to greater surface roughness and enhanced Fe(III) binding. In addition, the fluorescence intensity of ssHPA-CPDs at 465 nm (λex = 350 nm) was used as the quantitative signal for Fe(III) detection with a limit of detection of 0.07 μM. The ssHPA-CPDs offering a rapid (1.0 min) and reproducible (three times) method by adding ascorbic acid for accurately determining Fe(III) content in liver and blood samples, with spiked recovery rates ranging from 87.47% to 106.01%. This method adopts flexible disulfide-bridged CPDs to regulate quantum yield, offering a rapid and accurate approach to detect Fe(III) content in meat by-products for the evaluation of food safety and human health. |
| Τύπος εγγράφου: | journal article http://purl.org/coar/resource_type/c_6501 article peer reviewed |
| Γλώσσα: | English |
| Relation: | https://api.elsevier.com/content/article/PII:S1386142526004087?httpAccept=text/xml; urn:issn:1386-1425; urn:issn:1873-3557 |
| DOI: | 10.1016/j.saa.2026.127837 |
| Σύνδεσμος πρόσβασης: | https://orbi.uliege.be/handle/2268/345506 |
| Rights: | open access http://purl.org/coar/access_right/c_abf2 info:eu-repo/semantics/openAccess |
| Αριθμός Καταχώρησης: | edsorb.345506 |
| Βάση Δεδομένων: | ORBi |
| DOI: | 10.1016/j.saa.2026.127837 |
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