Fig. 4. Optimization of assay time for influenza A (H1N1) virus detection. (a) The captured fluorescence images and (b) the measured relative fluorescence intensity during virus detection (from 0 to 70 min) in 3D PC structure with influenza A (H1N1) virus concentration of 200 μg mL−1. The scale bar in the images is 20 μm.
