Fig. 7From: Optimize the parameters for the synthesis by the ionic gelation technique, purification, and freeze-drying of chitosan-sodium tripolyphosphate nanoparticles for biomedical purposesSEM images obtained from CS-TPP NPs with P80. At a magnification of (A) 5.06 KX and (B) 14.75 KX, the scale of the measuring bar is equivalent to 3 μm and 1 μm, respectivelyBack to article page