Fig. 2From: Specific cancer stem cell-therapy by albumin nanoparticles functionalized with CD44-mediated targetingStabilities evaluation of ATRA loaded HA-eNPs. Continually determinations of a the diameter, b the zeta potential, c the encapsulation efficiency, and d HA density of HA-eNPs within 4 weeks, respectively. Results are shown as the means ± SD (n = 3)Back to article page