用金纳米粒子装饰的分子印迹仿生质子传感器,用于选择性灵敏检测双酚 A

IF 4.1 Q1 CHEMISTRY, ANALYTICAL
Ilgım Göktürk , Süleyman Aşır , Deniz Türkmen , Adil Denizli , Fatma Yılmaz
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引用次数: 0

摘要

受抗原-抗体相互作用的启发,分子印迹聚合物作为一种生物仿生人工受体系统在环境应用中受到了广泛关注。在此,我们介绍了一种与金纳米粒子集成的分子印迹表面等离子体共振传感器,用于识别干扰内分泌的化学物质双酚 A(BPA)。我们合成了由氨基酸功能单体组成的双酚 A 压印纳米薄膜,可选择性地检测合成废水样品中的双酚 A。为了确保该方法的可靠性和可行性,我们对添加了双酚 A 的合成废水样品进行了分析。在理想条件下,所建议的方法对双酚 A 的分析性能良好,线性范围为 0.1 至 10 µg/L,LOD 为 10 ng/L。传感器的结果与 Langmuir 吸附模型十分吻合。研究还表明,该传感器可以重复使用。根据选择性研究,与 4-硝基苯酚和苯酚相比,双酚 A 在压印腔内的吸附效果更好。这种双酚 A 印迹表面等离子体共振传感器采用信号放大策略,提高了灵敏度,无需标记即可实现非共轭传感,具有实时传感、低样品消耗率、可量化评估和出色的实际样品动力学速率常数计算等特点。此外,由于生产的传感器可重复使用,相对标准偏差 (RSD)<1.25 表明了传感器的精度,因此基于表面等离子体共振的生物仿生双酚 A 传感器操作简单,是一种具有成本效益的选择。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Molecularly imprinted biomimetic plasmonic sensor decorated with gold nanoparticles for selective and sensitive detection of bisphenol A
Molecularly imprinted polymers inspired by antigen-antibody interactions have received substantial interest as a biomimetic artificial receptor system in environmental applications. Herein, we present a molecularly imprinted surface plasmon resonance sensor integrated with gold nanoparticles for the identification of bisphenol A (BPA), an endocrine-disrupting chemical. We synthesized BPA-imprinted nanofilm consisting of amino acid-based functional monomers to selectively detect BPA from synthetic wastewater samples. BPA-spiked synthetic wastewater samples were analyzed to ensure the method's reliability and feasibility. Under ideal conditions, the suggested approach performed well in terms of analytical performance to bisphenol A, with a wide linear range of 0.1 to 10 µg/L and LOD of 10 ng/L. The sensor results align well with the Langmuir adsorption model. It has also been shown that repeated use of the sensor can be achieved. According to selectivity studies, bisphenol A adsorbed within the imprinted cavities favorably compared to 4-nitrophenol and phenol. The produced bisphenol A-imprinted surface plasmon resonance sensor provides improved sensitivity based on the signal amplification strategy, unconjugated sensing without the need for labelling, real-time sensing, low sample consumption rates, quantifiable assessment, and outstanding kinetic rate constant calculation in actual samples. Also, because the produced sensor is reusable with relative standard deviations (RSD)<1.25, indicating the sensor's precision, the surface plasmon resonance-based biomimetic BPA sensor is simple to practice and a cost-effective option.
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来源期刊
Talanta Open
Talanta Open Chemistry-Analytical Chemistry
CiteScore
5.20
自引率
0.00%
发文量
86
审稿时长
49 days
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