Department of Chemistry, Faculty of Physics and Chemistry, Alzahra University, Tehran, Iran.
Department of Chemistry, Faculty of Physics and Chemistry, Alzahra University, Tehran, Iran.
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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