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FTIR spectra (a) and XRD spectra (b) of cellulose nanosphere isolated from different sources compared with commercial cellulose. RS-CN: rice straw cellulose nanosphere; CC-CN: corncob cellulose nanosphere; PL-CN: pineapple leaves cellulose nanosphere; PP-CN: pineapple peels cellulose nanosphere; COM-CN: cellulose nanosphere hydrolyzed from commercial cellulose.
