Fig. 1From: Cardiomyocyte-targeted and 17β-estradiol-loaded acoustic nanoprobes as a theranostic platform for cardiac hypertrophyCharacterizations of PCM-E2/PFPs. a Optical microscopy image of PCM-E2/PFPs. b TEM image of PCM-E2/PFPs. c Macroscopic views of free PFP and PCM-E2/PFPs at the same PFP concentration in PBS. d, e Size distribution and Zeta potential of PCM-E2/PFPs. f Size distributions of E2/H2Os, PCM-E2/H2Os and PCM-E2/H2Os. g Size changes of PCM-E2/PFPs at 4 °C after long-term storage (n = 3)Back to article page