Chitosan Derivatives/Calcium Carbonate Composite Capsules Prepared by the Layer-by-Layer Deposition Method II Stabilization of the Shell by Crosslinking
Figure 1
Transmission electron micrographs for capsules with a crosslinked chitosan shell (). (a) A filled capsule crosslinked by HMDI, (b) a hollow capsule crosslinked by HMDI, (c) a filled capsule crosslinked by TDI, and (d) a hollow capsule crosslinked by TDI.