Modification of Cellulose Nanofibrils with Luminescent Carbon Dots

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• 作者：Karoliina Junka ; Jiaqi Guo ; Ilari Filpponen ; Janne Laine ; Orlando J. Rojas
• 刊名：Biomacromolecules
• 出版年：2014
• 出版时间：March 10, 2014
• 年：2014
• 卷：15
• 期：3
• 页码：876-881
• 全文大小：385K
• 年卷期：v.15,no.3(March 10, 2014)
• ISSN：1526-4602

文摘

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.