Fig. 1
From: Acidic and hypoxic tumor microenvironment regulation by CaO2-loaded polydopamine nanoparticles
Characterization of CaO2@mPDA-SH nanoparticles. A Number-average hydrodynamic diameter distribution of mPDA and CaO2@mPDA-SH nanoparticles. B ζ potential of mPDA and CaO2@mPDA-SH nanoparticles dispersed in aqueous solution. C Stability of CaO2@mPDA-SH in HEPES buffer. D TEM images (insert is one magnified NP with pore size indicated in red and calculated by ImageJ) and E SEM images of mPDA and CaO2@mPDA-SH nanoparticles