Figure 1. SEM micrographs of the ELD and ELDC coatings (0.1 g/L chitosan in solution). (a) In the ELD coating, note Ca-P globules and small plate-like crystals. (b,c,d) In the ELDC coating, note many chitosan aggregates around the Ca-P globules and interconnected to form a net (b). Some of them spread and integrated with calcium phosphate crystals (c,d). Ch, chitosan; CaP, calcium phosphate.