花菁染料负载的聚合物纳米材料用于次氯酸可视化检测的研究

doi:10.7517/j.issn.1674-0475.2017.03.290

影像科学与光化学 ›› 2017, Vol. 35 ›› Issue (3): 290-296.DOI: 10.7517/j.issn.1674-0475.2017.03.290

花菁染料负载的聚合物纳米材料用于次氯酸可视化检测的研究

俞丹萍¹, 刘亚伟², 申亮¹, 李富友²

1. 江西科技师范大学化学化工学院江西省水性涂料工程实验室, 江西南昌 330013;
2. 复旦大学化学系, 上海 200433

收稿日期:2017-02-10 修回日期:2017-02-26 出版日期:2017-05-15 发布日期:2017-05-15
通讯作者: 申亮,李富友
基金资助:
国家自然科学基金项目（21231004和21375024）资助

Cyanine Dye-loading Polymer Nanoparticle for Colorimetric Detection of Hypochlorous Acid

YU Danping¹, LIU Yawei², SHEN Liang¹, LI Fuyou²

1. Jiangxi Engineering Laboratory of Waterborne Coating, School of Chemistry and Chemical Engineering, Jiangxi Science and Technology Normal University, Nanchang 330013, Jiangxi, P. R. China;
2. Department of Chemistry, Fudan University, Shanghai 200433, P. R. China

Received:2017-02-10 Revised:2017-02-26 Online:2017-05-15 Published:2017-05-15

摘要/Abstract

摘要：

次氯酸（HClO）作为强氧化剂被广泛应用于日常生活中，研究对HClO浓度的便捷监测方法具有重要意义。针对HClO的可视化探针存在水溶性较差和易被光漂白的问题，本工作利用次氯酸根（ClO^-）可破坏花菁染料的共轭结构这一特性，设计合成了一种花菁染料Cy7负载的聚苯乙烯纳米球（PS-Cy7），并研究了其与次氯酸的响应行为。实验结果表明，PS-Cy7具有良好的单分散性，粒径约为78 nm；相比于花菁染料Cy7，PS-Cy7具有更好的水溶性和光稳定性，并且对次氯酸具有专一性的响应，其最低检测限为0.22 μmol/L，实现了对HClO的可视化检测，有望用于日常生活中的HClO监测。

关键词: 可视化检测, 次氯酸, 花菁染料, 聚合物纳米材料

Abstract:

As a strong oxidant, HClO was widely applied in people everyday life, so it is great important to monitor the concentration of HClO. Herein, we developed a new strategy to resolve the deficiency of photobleaching and poor water-solubility for the current HClO probes. On the basis of the fact that hypochlorite can destroy the conjugated structure of the organic dye, a polystyrene nanoparticle loaded with the Cy7 dye (PS-Cy7) had been designed and synthesized. Moreover, PS-Cy7 with the size of 78 nm was carried out as colorimetric nanoprobe for detection of hypochlorite anion (ClO^-). The nanoprobe exhibits good water-solubility and high photostability. The detection limit of PS-Cy7 for hypochlorite in water was 0.22 μmol/L. Furthermore, PS-Cy7 can specifically respond to hypochlorite in presence of other reactive oxygen species. The experimental result demonstrated that PS-Cy7 was a colorimetric nanoprobe with high sensitivity and selectivity of hypochlorite.

Key words: colorimetric detection, hypochlorous acid, cyanine dye, polymer nanoparticle

俞丹萍, 刘亚伟, 申亮, 李富友. 花菁染料负载的聚合物纳米材料用于次氯酸可视化检测的研究[J]. 影像科学与光化学, 2017, 35(3): 290-296.

YU Danping, LIU Yawei, SHEN Liang, LI Fuyou. Cyanine Dye-loading Polymer Nanoparticle for Colorimetric Detection of Hypochlorous Acid[J]. Imaging Science and Photochemistry, 2017, 35(3): 290-296.

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花菁染料负载的聚合物纳米材料用于次氯酸可视化检测的研究

Cyanine Dye-loading Polymer Nanoparticle for Colorimetric Detection of Hypochlorous Acid

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