Jintao Yi, Xianqin Han, Jiahao Jian, Yayan Lai, Jun Lu, Lei Peng, Zhongkai Liu, Jun Xue, Hui Zhou, Xun Li
2,6-Pyridinedicarboxylic acid (DPA) is a significant biomarker of anthrax, which is a deadly infectious disease for human beings. However, the development of a convenient anthrax detection method is still a challenge. Herein, we report a novel europium metal-organic framework (Eu-MOF) with an enhanced peroxidase-like activity and fluorescence property for DPA detection. The Eu-MOF was one-step synthesized using Eu3+ ions and 2-methylimidazole. In the presence of DPA, the intrinsic fluorescence of Eu3+ ions is sensitized, the fluorescence intensity linearly increases with an increase in DPA concentration, and the fluorescence color changes from blue to purple...
April 15, 2024: Analytical Methods: Advancing Methods and Applications