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Zhang D, Zhang Y, Li K, Wang S, Ma Y, Liao Y, Wang F, Liu H. A smartphone-combined ratiometric fluorescence molecularly imprinted probe based on biomass-derived carbon dots for determination of tyramine in fermented meat products. Food Chem 2024; 454:139759. [PMID: 38805926 DOI: 10.1016/j.foodchem.2024.139759] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2024] [Revised: 05/08/2024] [Accepted: 05/18/2024] [Indexed: 05/30/2024]
Abstract
A ratiometric fluorescence molecularly imprinted probe employing two distinct emission wavelengths of biomass carbon dots was developed for highly selective and visual quantitative detection of tyramine in fermented meat products. The red emission biomass carbon dots were employed as responsive elements, and the blue ones were utilized as the reference elements. The molecularly imprinted polymers were incorporated in the ratiometric sensing to distinguish and adsorb tyramine. With the linear range of 1-60 μg/L, the ratiometric fluorescence molecularly imprinted probe was successfully applied to detect tyramine in real samples with the satisfactory recoveries of 79.74-112.12% and the detect limitation of 1.3 μg/kg, indicating that this probe has great potential applications for the detection of tyramine in real samples. Moreover, smartphone-based fluorescence signal recognition analysis on hand has been developed for the quantitative analysis of tyramine, providing a portable visual optical analysis terminal for rapid on-site determination of tyramine.
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Affiliation(s)
- Dianwei Zhang
- Beijing Technology and Business University, 11 Fucheng Road, Beijing 100048, China
| | - Yuhua Zhang
- Beijing Technology and Business University, 11 Fucheng Road, Beijing 100048, China
| | - Kexin Li
- Beijing Technology and Business University, 11 Fucheng Road, Beijing 100048, China
| | - Shengnan Wang
- Beijing Technology and Business University, 11 Fucheng Road, Beijing 100048, China
| | - Yuanchen Ma
- Beijing Technology and Business University, 11 Fucheng Road, Beijing 100048, China
| | - Yonghong Liao
- Beijing Technology and Business University, 11 Fucheng Road, Beijing 100048, China
| | - Fenghuan Wang
- Beijing Technology and Business University, 11 Fucheng Road, Beijing 100048, China..
| | - Huilin Liu
- Beijing Technology and Business University, 11 Fucheng Road, Beijing 100048, China..
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Zhang LL, Li L, Wang D, Hong Y, Tang K, Hong J, Chen Z, Yang W, Lu L, Duan LY. Rapid redox-response featured visual ascorbic acid sensor based on simple-assembled europium metal-organic framework. Food Chem 2024; 459:140339. [PMID: 38986206 DOI: 10.1016/j.foodchem.2024.140339] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2024] [Revised: 06/25/2024] [Accepted: 07/03/2024] [Indexed: 07/12/2024]
Abstract
A facile, fast and visible sensing platform for ascorbic acid (AA) detection has been developed based on self-assembled hydrangea-like europium metal-organic framework (HL-EuMOF). HL-EuMOF was synthesized through a simple one-step mixing process with Eu3+ and 1, 10-phenanthroline-2, 9-dicarboxylic acid at room temperature, which exhibited excellent properties including strong red fluorescence, long decay lifetime (548.623 μs) and good luminescent stability. Based on the specific redox reaction between Fe3+ and AA, the HL-EuMOF@Fe3+ was fabricated with "turn-off" response for AA, where the resulting Fe2+ displayed effective fluorescence quenching ability toward HL-EuMOF. The sensor demonstrated low detection limit (31.94 nM), rapid response time (30 s) and high selectivity. Integration of smartphone-assisted RGB analysis with HL-EuMOF@Fe3+ permitted convenient and visible quantitative determination of AA level. This approach also presented good detection performances in complex human serum and beverage samples, which could provide a valuable tool for AA detection in biomedical research and food industry.
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Affiliation(s)
- Lin-Lin Zhang
- College of Food Science and Engineering, Jiangxi Agricultural University, Nanchang 330045, China
| | - Li Li
- Key Laboratory of Crop Physiology, Ecology and Genetic Breeding, Ministry of Education, Key Laboratory of Chemical Utilization of Plant Resources of Nanchang, College of Chemistry and Materials, College of Science, Jiangxi Agricultural University, Nanchang 330045, China
| | - Dan Wang
- College of Food Science and Engineering, Jiangxi Agricultural University, Nanchang 330045, China
| | - Yanping Hong
- College of Food Science and Engineering, Jiangxi Agricultural University, Nanchang 330045, China
| | - Kaijie Tang
- College of Food Science and Engineering, Jiangxi Agricultural University, Nanchang 330045, China
| | - Jiaxin Hong
- College of Food Science and Engineering, Jiangxi Agricultural University, Nanchang 330045, China
| | - Zeng Chen
- College of Food Science and Engineering, Jiangxi Agricultural University, Nanchang 330045, China
| | - Wuying Yang
- College of Food Science and Engineering, Jiangxi Agricultural University, Nanchang 330045, China.
| | - Limin Lu
- Key Laboratory of Crop Physiology, Ecology and Genetic Breeding, Ministry of Education, Key Laboratory of Chemical Utilization of Plant Resources of Nanchang, College of Chemistry and Materials, College of Science, Jiangxi Agricultural University, Nanchang 330045, China.
| | - Lu-Ying Duan
- College of Food Science and Engineering, Jiangxi Agricultural University, Nanchang 330045, China.
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Zhang S, Xiao J, Zhong G, Xu T, Zhang X. Design and application of dual-emission metal-organic framework-based ratiometric fluorescence sensors. Analyst 2024; 149:1381-1397. [PMID: 38312079 DOI: 10.1039/d3an02187d] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2024]
Abstract
Metal-organic frameworks (MOFs) are novel inorganic-organic hybridized crystals with a wide range of applications. In the last twenty years, fluorescence sensing based on MOFs has attracted much attention. MOFs can exhibit luminescence from metal nodes, ligands or introduced guests, which provides an excellent fluorescence response in sensing. However, single-signal emitting MOFs are susceptible to interference from concentration, environment, and excitation intensity, resulting in poor accuracy. To overcome the shortcomings, dual-emission MOF-based ratiometric fluorescence sensors have been proposed and rapidly developed. In this review, we first introduce the luminescence mechanisms, synthetic methods, and detection mechanisms of dual-emission MOFs, highlight the strategies for constructing ratiometric fluorescence sensors based on dual-emission MOFs, and classify them into three categories: intrinsic dual-emission and single-emission MOFs with luminescent guests, and non-emission MOFs with other luminescent materials. Then, we summarize the recent advances in dual-emission MOF-based ratiometric fluorescence sensors in various analytical industries. Finally, we discuss the current challenges and prospects for the future development of these sensors.
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Affiliation(s)
- Shuxin Zhang
- School of Biomedical Engineering, Health Science Center, Shenzhen University, Shenzhen 518060, China.
| | - Jingyu Xiao
- School of Biomedical Engineering, Health Science Center, Shenzhen University, Shenzhen 518060, China.
| | - Geng Zhong
- School of Biomedical Engineering, Health Science Center, Shenzhen University, Shenzhen 518060, China.
| | - Tailin Xu
- School of Biomedical Engineering, Health Science Center, Shenzhen University, Shenzhen 518060, China.
| | - Xueji Zhang
- School of Biomedical Engineering, Health Science Center, Shenzhen University, Shenzhen 518060, China.
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