Preparation and Properties of 3D Chitosan Microtubes
Figure 2
Photos of the external ((a), (c), (e)) and internal ((b), (d), (f)) surfaces of microtubes made from the chitosan solution with = 5.0 wt.% in citric acid ((a), (b)) and with wt.% in lactic acid ((c)–(f)) by the wet ((a)–(d)) and dry methods ((e), (f)).
