MAPT and Alzheimer disease: In the field of AD blood biomarker detection, there have been some reports, such as Moreira’s screen-printing electrochemical sensor for the ultra-sensitive detection of Aβ42 [26], Vu et al.’s microelectrode-based SERS sensor for the detection of Aβ [17], and Subramaniyan Parimalam et al.’s laser-printed microfluidic chip sensor for the detection of tau protein [27].