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(a) (i) A schematic showing a multiplexed version of an LFA strip by utilizing hydrophobic lines to separate different regions for various functionalities. In each region, one type of detection antibodies is immobilized onto test line and is able to specifically detect target pathogen, and (ii) expected multiplex colorimetric readouts of LFA device. (b) Expected point-of-care strip reader for rapid and convenient quantification of colorimetric signal obtained from LFA strip.
