“…Since its first usage in the pregnancy test in 1970s, LFA has showed its success of the general design and kept almost unchanged (Parolo, de la Escosura‐Muñiz, & Merkoçi, 2013 ; Zhou, Wu, Ding, Huang, & Xiong, 2021 ). Almost all LFA strips rely on capillary forces for moving the sample and reagent along a test strip to produce a detectable signal (Yuechun Li et al., 2022 ; S. Liu, R. Shu, C. Nie, et al., 2022 ). Especially, LFA as a well‐known technology and a popular POC test platform have played a significant role in the control of the COVID‐19 pandemic (S. Liu, R. Shu, J. Ma, et al., 2022 ; Parolo et al., 2020 ; X. Zhang, Li, Wu, Liu, & Wu, 2020 ; Zhou et al., 2021 ).…”