Life and Health Research Institute, Tianjin Key Laboratory of Organic Solar Cells and photochemical Conversion, School of Chemistry & Chemical Engineering, Tianjin University of Technology, Tianjin 300384, PR China.
Life and Health Research Institute, Tianjin Key Laboratory of Organic Solar Cells and photochemical Conversion, School of Chemistry & Chemical Engineering, Tianjin University of Technology, Tianjin 300384, PR China.
Spectrochim Acta A Mol Biomol Spectrosc. 2021 Oct 5;259:119886. doi: 10.1016/j.saa.2021.119886. Epub 2021 Apr 30.
Well-dispersed Prussian blue (PB) and Au nanoparticles (Au NPs) loaded three dimensional MoS nanoflowers (PB-Au@MoS NFs) was synthesized by a simple and economical method. The structure, morphology and composition of the hybrid were characterized by XRD, SEM and EDS. Similar to the reported literature, MoS nanoflowers showed peroxidase-like activity in catalyzing the oxidation of 3,3',5,5'-tetramethylbenzidine (TMB). This peroxidase-mimicking activity could be enhanced with the introduction of PB and Au NPs. Herein, PB-Au@MoS NFs could be used to establish a new platform for the determination of HO and glucose by the chromogenic reaction. Wide linear ranges with 0-15 μM and 0-120 μM for HO and glucose detection were finally obtained. The detection limits were as low as 0.25 μM and 3 μM (with signal to noise ratio of 3), respectively. The established platform was also used successfully for the determination of glucose in human serum and fruit juice samples with excellent sensitivity and stability.
通过一种简单且经济的方法合成了负载普鲁士蓝（PB）和金纳米粒子（Au NPs）的分散良好的三维 MoS 纳米花（PB-Au@MoS NFs）。通过 XRD、SEM 和 EDS 对混合物的结构、形态和组成进行了表征。与已报道的文献相似，MoS 纳米花在催化 3,3',5,5'-四甲基联苯胺（TMB）的氧化中表现出类过氧化物酶活性。通过引入 PB 和 Au NPs，可以增强这种过氧化物酶模拟活性。在此，PB-Au@MoS NFs 可用于通过显色反应建立测定 HO 和葡萄糖的新平台。最终获得了 HO 和葡萄糖检测的 0-15 μM 和 0-120 μM 的宽线性范围。检测限分别低至 0.25 μM 和 3 μM（信噪比为 3）。该建立的平台还成功用于测定人血清和果汁样品中的葡萄糖，具有出色的灵敏度和稳定性。
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