金属有机框架@多金属氧酸盐衍生的双金属氧化物Fe(MoO)纳米颗粒用于比色法灵敏检测阿司匹林中的水杨酸
MOFs@POMs-derived bimetallic oxide Fe(MoO) nanoparticles for sensitive colorimetric detection of salicylic acid in aspirin.
作者信息
Han Hong, Ji Yuhan, Zhao Xin, Yin Ling, Liu Xiangyi, Sha Jingquan
机构信息
School of Chemistry, Chemical Engineering and Materials, Jining University, Qufu, 273155, People's Republic of China.
School of Pharmacy, Jiamusi University, Jiamusi, 154007, People's Republic of China.
出版信息
Mikrochim Acta. 2024 Mar 5;191(4):178. doi: 10.1007/s00604-024-06261-z.
A colorimetric sensing method for salicylic acid (SA) was developed by designing and fabricating bimetallic oxide nanozymes. Firstly, by calcinating MIL-100(Fe)@PMo (MOFs@POMs) at different temperature, Fe(MoO)-Ts (T = 400℃, 500℃, 600℃, 700℃) nanoparticles (NPs) were successfully prepared. Secondly, by evaluating the peroxidase-like activities, Fe(MoO)-600 NPs shows the best peroxidase-like activity attributed to the Fenton-like effect and the synergistic coupling interaction between Mo and Fe. Finally, based on the specific complexation between SA and Fe, a sensitive colorimetric sensor for SA was established, which exhibits superior selectivity and interference with a detection limit of 0.11 μM and a linear range of 10 to 100 μM, the lowest LOD for SA to date, to the best of our knowledge.
通过设计和制备双金属氧化物纳米酶，开发了一种用于水杨酸（SA）的比色传感方法。首先，通过在不同温度下煅烧MIL-100(Fe)@PMo（金属有机框架@多金属氧酸盐），成功制备了Fe(MoO)-Ts（T = 400℃、500℃、600℃、700℃）纳米颗粒（NPs）。其次，通过评估类过氧化物酶活性，Fe(MoO)-600 NPs表现出最佳的类过氧化物酶活性，这归因于类芬顿效应以及Mo和Fe之间的协同耦合相互作用。最后，基于SA与Fe之间的特异性络合，建立了一种用于SA的灵敏比色传感器，据我们所知，该传感器具有优异的选择性和抗干扰性，检测限为0.11 μM，线性范围为10至100 μM，是迄今为止SA的最低检测限。
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