File Name : figs1.tif

Caption : figure s1. summary of trypsinogen immobilization process.

File Name : figs2.tif

Caption : figure s2. (a) measured flow velocity with different applied pressure. (b) reaction time with different applied pressure determined by (a).

File Name : figs3.tif

Caption : figure s3. calibration of pops signals to tryptic hydrolysis rate in different applied pressure (a)-(g) from the signals of 100% digestion and 0% digestion.