Figure 4.
(a) Chemical modification of CNC surface with FITC and folic acid (FA) for visualizing the enhanced receptor-mediated uptake of the nanocelluloses by human DBTRG05MG, which is shown in (b) the fluorescence images of stained cells [80]. Reprinted with permission from S. Dong, H.J. Cho, Y.W. Lee, M. Roman, Synthesis and cellular uptake of folic acid-conjugated CNCs for cancer targeting. Reprinted with permission from (Biomacromolecules, 15:1560–1567). Copyright (2014) American Chemical Society.
