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. Author manuscript; available in PMC: 2017 May 1.
Published in final edited form as: Toxicol Appl Pharmacol. 2016 Mar 4;298:9–18. doi: 10.1016/j.taap.2016.03.001

Figure 4. Scanning electron micrographs of triptolide formulations.

Figure 4

Triptolide formulations were produced by spray drying and evaluated by scanning electron microscopy. A) Neat triptolide spray-dried from methylene chloride solution, 0.4 mm nozzle. B) 40% triptolide/60% PLGA spray-dried from methylene chloride, 0.4 mm nozzle. C) 40% triptolide/60% PLGA spray-dried from methylene chloride, 0.6 mm nozzle. Scale bar in panel A represents 10 μm for all panels.