Modification of cellulose nanofibrils with luminescent carbon dots.
Films and hydrogels consisting of cellulose nanofibrils (CNF) were modified by covalent EDC/NHS coupling of luminescent, water-dispersible carbon dots (CDs). Quartz crystal microgravimetry with dissipation monitoring (QCM-D) and surface plasmon resonance (SPR) were used to investigate the attachment of CDs on carboxymethylated CNF (CM-CNF). As the first reported use of CD in nanocellulose products, we provide proof-of-concept for the synthesis of transparent and fluorescent nanopaper and for its tunable luminescence as confirmed by confocal microscopy imaging.
School of Chemical Technology, Department of Forest Products Technology, Aalto University , P.O. Box 16300, 00076 Aalto, Finland.
Karoliina
K
Junka
Jiaqi
J
Guo
Ilari
I
Filpponen
Janne
J
Laine
Orlando J
OJ
Rojas
D000327:Adsorption; D002244:Carbon / Q000737:chemistry; D002482:Cellulose / Q000737:chemistry*; D003460:Crystallization; D049449:Luminescence; D049408:Luminescent Agents / Q000737:chemistry*; D057139:Nanofibers / Q000737:chemistry*; D053758:Nanoparticles / Q000737:chemistry; D011791:Quartz / Q000737:chemistry; D020349:Surface Plasmon Resonance; D013499:Surface Properties; D014867:Water / Q000737:chemistry
D049408:Luminescent Agents; D014867:Water; D011791:Quartz; D002244:Carbon; D002482:Cellulose