College of Materials Science and Engineering, Heilongjiang Provincial Key Laboratory of Polymeric Composite Materials, Qiqihar University, Qiqihar, 161006, China.
College of Chemistry and Chemical Engineering, Qiqihar University, Qiqihar, 161006, China.
Mikrochim Acta. 2023 Jun 20;190(7):267. doi: 10.1007/s00604-023-05855-3.
A new electrochemical sensing material based on the MIL-101(Cr) molecular cage anchored on 2D TiCT-MXene nanosheets was prepared by using the in situ growth molecular engineering strategy. The sensing material was characterized by using different methods such as SEM, XRD, and XPS. The electrochemical sensing performance of MIL-101(Cr)/TiCT-MXene was studied by DPV, CV, EIS, and other techniques. The electrochemical tests showed that the linear range of the modified electrode for xanthine (XA) detection was 1.5-73.0 μM and 73.0-133.0 μM, the detection limit was 0.45 μM (working potential of + 0.71 V vs. Ag/AgCl), and the performance is superior compared with the reported enzyme-free modified electrodes for detecting XA. The fabricated sensor has high selectivity and stability. It has good practicability in serum analysis with recoveries of 96.58-103.27% and a relative standard deviation (RSD) of 3.58-4.32%.
采用原位生长分子工程策略，制备了一种基于 MIL-101(Cr)分子笼锚定在二维 TiCT-MXene 纳米片上的新型电化学传感材料。通过 SEM、XRD 和 XPS 等多种方法对传感材料进行了表征。通过 DPV、CV、EIS 等技术研究了 MIL-101(Cr)/TiCT-MXene 的电化学传感性能。电化学测试表明，修饰电极对黄嘌呤（XA）的检测线性范围为 1.5-73.0 μM 和 73.0-133.0 μM，检测限为 0.45 μM（工作电位为+0.71 V 相对于 Ag/AgCl），性能优于已报道的用于检测 XA 的无酶修饰电极。所制备的传感器具有高选择性和稳定性，在血清分析中具有良好的实用性，回收率为 96.58-103.27%，相对标准偏差（RSD）为 3.58-4.32%。
