Figure 5.

SEM images of sample MS12 at different sulfuric acid contents. (a) 1.0 and (b) 2.0 mol relative to 100 mol water. No growth was observed with the 3.34 molar ratio.

Alsyouri et al. Nanoscale Research Letters 2013 8:484   doi:10.1186/1556-276X-8-484
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