Fig. 5
From: A natural in situ fabrication method of functional bacterial cellulose using a microorganism

Microstructure observation of BC through SEM. a–c Top view of different BC samples. The diameters of different BC fibers showed no significant differences, whereas the pore sizes of a HC-6CF-BC and b LC-6CF-BC were slightly larger than that of c BC. The scale bar corresponds to 2 μm. d–i Cross-section of different BC samples. The gaps of d HC-6CF-BC were significantly larger than those of e LC-6CF-BC and f BC samples. Moreover, g HC-6CF-BC was also thicker than h LC-6CF-BC and i BC samples. d–f, The scale bar corresponds to 400 nm. g–i, The scale bar corresponds to 20 μm