硼酸酸修饰的磁性壳聚糖量子点纳米复合材料的合成及其对 Cu 离子检测的效率研究。
The synthesis and efficiency investigation of a boronic acid-modified magnetic chitosan quantum dot nanocomposite in the detection of Cu ions.
机构信息
Department of Chemistry, Faculty of Physics and Chemistry, Alzahra University, Tehran, Iran.
Department of Chemistry, Faculty of Physics and Chemistry, Alzahra University, Tehran, Iran.
出版信息
Int J Biol Macromol. 2021 Oct 31;189:477-482. doi: 10.1016/j.ijbiomac.2021.08.158. Epub 2021 Aug 25.
We prepared the magnetic chitosan carbon quantum dot nanoparticles (FeO@CQD NPs) via the hydrothermal treatment of chitosan biopolymer and then its magnetization with FeO nanoparticles. (4-Acetylphenyl)boronic acid compound was utilized for the modification of surface of FeO@CQD nanoparticles via the covalent imine bond formation between NH groups of chitosan quantum dot with carbonyl functional of acetyl-substituted arylboronic acid. The synthesized FeO@CQD@AP-B(OH) was characterized by FE-SEM, EDS, XRD, VSM and ICP-OES analysis and its fluorescence property was studied. This magnetic multifunctional nanoplatform sensor has shown high potential sensitivity for Cu ions (in the range of 1.0-30.0 μM with limit of detection 0.3 μM) through interaction of cupric ions with the boronic-acid moiety.
我们通过水热处理壳聚糖生物聚合物，然后用 FeO 纳米颗粒对其进行磁化，制备了磁性壳聚糖碳量子点纳米粒子（FeO@CQD NPs）。（4-乙酰基苯基）硼酸化合物通过壳聚糖量子点上的 NH 基团与乙酰取代芳基硼酸的羰基官能团之间的亚胺键形成，用于 FeO@CQD 纳米粒子表面的修饰。所合成的 FeO@CQD@AP-B（OH）通过 FE-SEM、EDS、XRD、VSM 和 ICP-OES 分析进行了表征，并研究了其荧光性质。这种磁性多功能纳米平台传感器通过铜离子与硼酸部分的相互作用，显示出对铜离子（在 1.0-30.0 μM 范围内，检测限为 0.3 μM）的高潜在灵敏度。
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