“…Therefore, nanoparticles' rigidity is expected to increase as the CL-percentage is increased. In accordance with the theory [138,90,30] and previous reports [217, 114,109], 3% CL gels resulted more elastic than 5% CL gels for all the conditions studied. In addition, both for 3% and 5% CL nanoparticles, the higher the AA content, the higher the Z-average (i.e., higher elasticity), which could be due to the increase in repulsive interactions between moieties with charges of the same sign.…”