Fig. 8.

The change of wet weigh and diameter of the gel beads with immobilied G. oxydans 621H cells during culturing in distilled waster or MM. The cells were immobilized in alginate gel beads with or without Fe₃O₄ nanoparticles. The experiments were carried out in 50-mL centrifuge tubes containing 10 mL of MM or distilled water at 30 °C, 180 rpm. a The change of wet weigh of immobilized-cell beads. b The change of diameters of immobilized-cell beads. Averages (n ≥ 3) with standard deviations (error bar) were shown