. Alginate submicron beads analyzed by Cryo-SEMMorphology of gelled alginate submicron beads by Cryo-SEM
A 1% (w/w) solution of alginate was prepared and used to prepare
a stock emulsion with MCT oil as continuous phase. The stock
emulsion consisted of 3% (v/v) alginate solution in MCT oil with 6%
(w/w) PGPR as surfactant. CaCl2 nanoparticles were dispersed in the
MCT oil phase to induce gelation. Light microscopy showed the
presence of separate alginate submicron beads in all samples and no
clusters were found. In Fig. 1 micrographs from the Cryo-SEM of
alginate submicron beads in an MCT oil matrix are shown.