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Antenna effect enhanced ECL immunoassay using microfloral europium porphyrin coordination polymers based on Eu3+ and TCPP for the detection of chloramphenicol in foods
Analyst ( IF 3.6 ) Pub Date : 2024-07-24 , DOI: 10.1039/d4an00760c Xinyue Qian 1 , Cheng Tan 1 , Jing Zhang 2 , Kang Wu 3 , Anping Deng 1 , Jianguo Li 1
Analyst ( IF 3.6 ) Pub Date : 2024-07-24 , DOI: 10.1039/d4an00760c Xinyue Qian 1 , Cheng Tan 1 , Jing Zhang 2 , Kang Wu 3 , Anping Deng 1 , Jianguo Li 1
Affiliation
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The “antenna effect” is one of the most important energy transfer modes in lanthanide light-emitting polymers. In this study, novel luminescent nanostructured coordination polymers (Eu–PCP) were synthesized in one step using Eu3+ as the central metal ion and 5,10,15,20-tetrakis (4-carboxyphenyl) porphyrin (TCPP) as the organic ligand. The unique “antenna effect” observed between Eu3+ and TCPP leads to a substantial improvement in the electrochemiluminescence (ECL) emission efficiency. Eu–PCP exhibits good cathodic ECL characteristics. Additionally, Au@SnS2 nanosheets exhibit favorable electrical conductivity, biocompatibility, and a significant specific surface area. This makes them a suitable choice as substrate materials for the modification of electrode surfaces and capturing antigens. Being well known, the development of sensitive and rapid methods to detect chloramphenicol is essential for food safety. Based on this, we report a novel competitive electrochemiluminescence immunoassay to achieve ultra-sensitive and highly specific detection of chloramphenicol. The linear range was 0.0002–500 ng mL−1 and the detection limit was 0.09 pg mL−1. Apart from that, the experimental results proved that it provided a new analytical tool for the detection of antibiotic residues in food safety.
中文翻译：
基于Eu3+和TCPP的微生物铕卟啉配位聚合物天线效应增强ECL免疫分析法检测食品中的氯霉素
“天线效应”是镧系发光聚合物中最重要的能量转移模式之一。本研究以Eu ~(3+)为中心金属离子，5,10,15,20-四(4-羧基苯基)卟啉(TCPP)为有机发光材料，一步合成了新型发光纳米结构配位聚合物(Eu-PCP)。配体。 Eu 3+和 TCPP 之间观察到的独特“天线效应”导致电化学发光（ECL）发射效率显着提高。 Eu-PCP 表现出良好的阴极 ECL 特性。此外，Au@SnS 2纳米片表现出良好的导电性、生物相容性和显着的比表面积。这使得它们成为修饰电极表面和捕获抗原的基底材料的合适选择。众所周知，开发灵敏、快速的氯霉素检测方法对于食品安全至关重要。基于此，我们报告了一种新型竞争性电化学发光免疫分析法，以实现氯霉素的超灵敏和高特异性检测。线性范围为0.0002–500 ng mL -1 ，检测限为0.09 pg mL -1 。此外，实验结果证明，该方法为食品安全中抗生素残留检测提供了新的分析工具。
更新日期：2024-07-24
中文翻译：
基于Eu3+和TCPP的微生物铕卟啉配位聚合物天线效应增强ECL免疫分析法检测食品中的氯霉素
“天线效应”是镧系发光聚合物中最重要的能量转移模式之一。本研究以Eu ~(3+)为中心金属离子，5,10,15,20-四(4-羧基苯基)卟啉(TCPP)为有机发光材料，一步合成了新型发光纳米结构配位聚合物(Eu-PCP)。配体。 Eu 3+和 TCPP 之间观察到的独特“天线效应”导致电化学发光（ECL）发射效率显着提高。 Eu-PCP 表现出良好的阴极 ECL 特性。此外，Au@SnS 2纳米片表现出良好的导电性、生物相容性和显着的比表面积。这使得它们成为修饰电极表面和捕获抗原的基底材料的合适选择。众所周知，开发灵敏、快速的氯霉素检测方法对于食品安全至关重要。基于此，我们报告了一种新型竞争性电化学发光免疫分析法，以实现氯霉素的超灵敏和高特异性检测。线性范围为0.0002–500 ng mL -1 ，检测限为0.09 pg mL -1 。此外，实验结果证明，该方法为食品安全中抗生素残留检测提供了新的分析工具。
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