Design and Characterization of a Silk-Fibroin-Based Drug Delivery Platform Using Naproxen as a Model Drug

Table 6

FT-IR comparison of amide I, II, and III shifts in SF powder blends exposed to 76% humidity.

Composition	Amide I (cm^−1)	Amide II (cm^−1)	Amide III (cm^−1)
SF : NS (1 : 1) 76% humidity	1658.2/1629.5	1548.3/1515.7	1264.0/1230.5
SF : NS (1.5 : 1) 76% humidity	1656.6/1629.9	1538.4/1515.9	1262.6/1228.7
SF : NS (1 : 1) no humidity	1658.3	1546.6	1230.0