molecular weight of about 17,500 as determined by polyacrylamide gel electrophoresis

Frustrated Total Internal Reflection

uses "Frustrated Total Internal Reflection" as well as "Capacitive Sensing" to sense tell how much force is being exerted on the screen. FTIR uses infrared transmit lines, and CS can tell where the touch takes place

the ability to use a touchscreen and fingerprint reader at the same time

instructions for detecting one or more finger contacts with the touch screen display;