Fig. 5

Characterization of ROS-hydrogel and Apelin-13@ROS-hydrogel (A) The rheological characters of ROS-hydrogel and Apelin-13@ROS-hydrogel were characterized; storage modulus (G’) and loss modulus (G’’) were shown. (B) FTIR analysis of ROS-hydrogel and Apelin-13@ROS-hydrogel. (C) Circular dichroism (CD) spectropolarimetry analysis of Apelin-13 and Apelin-13@ROS-hydrogel released Apelin-13