Fig. 1.

(A) Image of the point-of-care all-in-one testing device, composed of a portable optoelectronic analyzer and a microfluidic transparent disc. (B) Microfluidic disc assembling: (1) Bottom disc; (2) Pressure-sensitive adhesive film (PSA); (3) Placing the black patterns on the bottom disc, using the PSA as a template; (4) Bottom disc with the black patterns; (5) Printing the microarrays onto the disc (4); (6) Top disc with microfluidic structures; (7) Assembling the bottom (5) and top (6) discs using the PSA film; (8) Ready-for-use disc. The red and green dot stickers indicate the microfluidic structure intended to perform serological and antigen assays, respectively.