Maud Chemin, Céline Moreau, Bernard Cathala, Ana Villares*
Journal of Renewable Materials, Vol.8, No.1, pp. 29-43, 2020, DOI:10.32604/jrm.2020.07850
Abstract In this work, we studied the adsorption of modified cellulose nanocrystals onto solid surfaces by quartz crystal microbalance with dissipation monitoring
(QCM-D). Cellulose nanocrystals obtained from tunicate (CNC) were modified at
reducing end by amidation reactions. Two different functionalities were investigated: a polyamine dendrimer (CNC-NH2), which interacts with gold surface
by the amine groups; and a biotin moiety (CNC-Biot), which has a strong affinity
for the protein streptavidin (SAV). QCM-D results revealed different adsorption
behaviors between modified and unmodified CNCs. Hence, unmodified CNCs
covered almost all the surface forming a rigid and flat layer whereas reducing
end modified CNCs remained… More >
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