Comparison of percent apoptotic-necrotic cells after 4 and 24 h of treatment with PS particles.
The figure compares the percent apoptotic-necrotic cells after 4 and 24 h treatment with 100 μg/mL of 50–5000 nm PS particles. All data represented as mean ± S.D. (n = 4). Statistically significant difference between 4 and 24 h is represented as *for aminated (p<0.01), # for carboxylated (<0.0001) and + for NF particles (p<0.0001).