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Individual cellulose macromolecules were successfully visualized on a highly oriented pyrolytic graphite (HOPG) surface by tapping-mode atomic force microscopy under ambient condition. Monomolecular-level dispersion of cellulose chains was achieved through the momentary contact of dilute cellulose/cupri-ethylenediamine (Cu-ED) solution onto the HOPG substrate. Both concentrations of cellulose and...
Conformational changes in individual carboxymethylcellulose (CMC) chains deposited on a highly oriented pyrolytic graphite (HOPG) surface were investigated by atomic force microscopy (AFM). A small amount of CMC solution with various salt concentrations was deposited onto the HOPG surface. The CMC molecular chains adsorbed onto the HOPG surface were clearly visualized using tapping-mode AFM under...
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