Controlled Release of Ursodeoxycholic Acid from Pullulan Acetate Nanoparticles to Modulate Glutamate-Induced Excitotoxicity in PC-12 Cells

Figure 3

(a, b) TEM images of synthesized UDCA-loaded PA nanoparticles. The sample was negatively stained with 1% (w/v) uranyl acetate solution. (c) Particle size distribution and (d) zeta potential analysis of UDCA-PA nanospheres.

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