International Journal of Polymer Science / 2014 / Article / Fig 7

Research Article

Electrical Signal Guided Ibuprofen Release from Electrodeposited Chitosan Hydrogel

Figure 7

Cumulative release of ibuprofen from chitosan-ibuprofen hydrogels by applying external potentials (a) and SEM images of the chitosan hydrogel after ibuprofen release by applying −3.0 V (b) and +3.0 V (c). The insert of SEM image shows high magnified images (the scale bar was 1 μm).