One-Pot Synthesis of Fluorescent Hydrogels by the In-Situ Growth of Carbon Dots on Holocellulose Nanofibrils = One-Pot Synthesis of Fluorescent Hydrogels by the In-Situ Growth of Carbon Dots on Holocellulose Nanofibrils

다국어 초록 (Multilingual Abstract)

Preparation of nanocellulose-based hydrogels that can be used in the field of biomedicine, have gained tremendous attention. Carbon dots are the latest addition to the carbon nanomaterials family and are well known for their stable fluorescence and high biocompatibility. Hence the incorporation of carbon dots into the nanocellulose-based hydrogels can broaden their applicability. In this work, a facile one-pot hydrothermal method is demonstrated to prepare N-doped carbon dots/holocellulose nanofibrils composite (NCDs/HCNF) hydrogel. During the hydrothermal treatment, the NCDs grow in-situ on HCNF surface and serve as cross-linkers to produce hydrogel. Hemicellulose portion of HCNF act as carbon source and ethylenediamine will serve as N dopant. Synthesis conditions were optimized, optical and physicochemical properties were studied in detail.