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. 2022 Oct 14;23(11):4597–4606. doi: 10.1021/acs.biomac.2c00840

Figure 2.

Figure 2

Hydroxymethylation of SKL and the preparation of corresponding LNPs. (a) FTIR spectra of SKL, HL60, and HL85 (lignin was hydroxymethylated at 60 and 85 °C, respectively). (b) Quantitative 31P NMR spectroscopy analysis of SKL, HL60, and HL85. (c) Particle size distribution (DLS, hydrodynamic diameter) of LNPs and nanoparticles prepared from HL60 and HL85. SEM images of (d) HL60NPs and (e) HL85NPs. Scale bars correspond to 100 nm. (f) Schematic model of the functional groups present on the surfaces of HL60NPs and HL85NPs.