MAPT and Alzheimer disease: created a magnetic PEC immunosensor array based on Fe2O3@FeS2@CdS MOF derivatives that enabled simultaneous detection of multiple AD biomarkers (Aβ and Tau) with detection limits of 2.1 and 7.9 pg mL−1, respectively, showcasing the versatility of MOF‐based platforms in multiplexed detection.[335] Meanwhile, some study focuses on addressing practical challenges in the biological detection of AD.