Fig. 4From: Cellular uptake and intracellular degradation of poly(alkyl cyanoacrylate) nanoparticles a Concentration of PBCA NPs and b POCA NPs at pH 7.4, 5.5 and 4.0. An exponential decay was fitted to the results in a. c Mean NP diameter at pH 7.4 and d pH4.0. Relative concentration (e, f) and mean diameter of NPs (g, h) in cell medium (e, g) and human blood serum (f, h)Back to article page