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Phagocytosis of bacteria by DMBM-2 macrophages after pre-incubation with CPS particles suspended in DMEM (n=3). Twenty nanometers CPS particles inhibited phagocytosis, while 1,000 and 500 nm CPS particles stimulated the uptake. Data are normalised (100 %) to the uptake of indicator particles in medium. Significant changes to the solvent-treated controls (p<0.05) are indicated by asterisk
