Fig. 9
From: Functional cellulose-based hydrogels as extracellular matrices for tissue engineering
TEM of IBS2-filled bone defects after 8 weeks (a-c). a The image clearly showed the mature bone tissue (B) containing the osteocytes (Os); b The vacuole containing the Si-HPMC polymer solution (H) around the microporous BPC granules (G) are visible; c The precipitation of the biological apatite (Ap) between the BPC crystals, collagen fibers (C), and the nucleus of osteoblastic cells can also be observed. [135]; d FE-SEM image of purified SWCNTs; e IR spectra of purified SWCNTs, cellulose and C/S-C; f-h. FM images of HeLa cells cultured for 24 h on the C/S-C (f), the SWCNTs (g), and a glass slide (h) [100, 138]. TEM: transmission electron microscopy; Si-HPMC: silated-hydroxypropylmethyl cellulose; BPC: biphasic calcium phosphate; FE-SEM: scanning electron microscopy; SWCNTs: single-walled carbon nanotubes; IR: infrared spectra; C/S-C: cellulose/SWCNTs complex