Fig. 1From: Optimize the parameters for the synthesis by the ionic gelation technique, purification, and freeze-drying of chitosan-sodium tripolyphosphate nanoparticles for biomedical purposesA Main effects plot for particle size, (B) Interactions plot for particle size, (C) Contour plot showing the effect of drip time vs. pH at 500 rpm for particle size, and (D) 3-D contour plot representing the effect of drip time, pH, and stirring rateBack to article page