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. 2023 Apr 27;13(9):1489. doi: 10.3390/nano13091489

Figure 3.

Figure 3

Mechanisms of TEMPO oxidation (a) [53]; TEM images of the TOCNF with carboxylate contents of 1.5 (b) and 0.9 mmol/g (c) [54]; SEM image of the cross-section of the pressed CNF bulk material (d,e) [55]; AFM image of dialdehyde TEMPO-oxidized NC (f) [56]; the recorded relative resistance changes of the strain in forefinger bending (prepared using dialdehyde TEMPO-oxidized NC) (g) [56]; schematic illustration of fabrication of antibody protein (SY5)-conjugated TOCNF (h), and the corresponding AFM images (i) [57]; schematic illustration of fabrication of pendant arginine (Arg) and tryptophan (Trp) into the TOCNC by amide coupling (j) [58].