Scanning electronic microscope (SEM) micrographs (× 10 000) of interior structure of sodium alginate-diatomite (SAD) beads without cells (a) and SAD beads with immobilized cells (b).
Scanning electronic microscope (SEM) micrographs (× 10 000) of interior structure of sodium alginate-diatomite (SAD) beadswithout cells (a) and SAD beads with immobilized cells (b).