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Fig. 4 | AMB Express

Fig. 4

From: Novel method to achieve crystallinity of calcite by Bacillus subtilis in coupled and non-coupled calcium-carbon sources

Fig. 4

BCC structures formed in non-coupled and coupled calcium-carbon sources. SEM images of BCC-GLC (a, c) and BCC-ACE (c, d) are shown. Scales (a) and rhombohedral calcite irregular shapes (c) are present. Crystallites grow over calcite aggregates and mineralized EPS in non-coupled sources (a, b). Besides, induced mineralization occurs over the cell wall in coupled source (d). Scale bars: 1 μm.

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