Fig. 2From: Inhibition of breast cancer with transdermal tamoxifen-encapsulated lipoplexStability of LPPC/TAM. LPPCs and LPPC/TAMs were storage at 4 °C for 8 weeks. a Particle size, b zeta-potential and c TAM amount in LPPC were measured at different storage time (n = 6). LPPC/TAMs were processed by freeze drying and storage at 4 °C for 8 weeks. d Particle size, e zeta-potential and f TAM amount in LPPC were measured (n = 3). *p < 0.05, compared with the 0 weekBack to article page