Uniform Chitosan Microparticles Prepared by a Novel Spray-Drying Technique

Figure 3

Typical photographs of monodisperse droplets formation: (a) 0.5 wt%; (b) 1.0 wt%; (c) 1.5 wt% (storage time: 0 day). Scale bar: 5 mm.

(a)

(b)

(c)