Figure 3

The N₂ adsorption/desorption isotherms for (a) SZCZCH193 N. wachnickianum, (b) SZCZM1342 N. shiloi, (c) SZCZP1809 N. cf. shiloi; and the UV–vis spectroscopy of biomass (colored line) and biosilica (gray line) for (d) SZCZCH193 N. wachnickianum, (e) SZCZM1342 N. shiloi, (f) SZCZP1809 N. cf. shiloi.