A5015486951- Advanced Cellulose Research Studies
- Electrospun Nanofibers in Biomedical Applications
- Nanocomposite Films for Food Packaging
- Silk-based biomaterials and applications
- Lignin and Wood Chemistry
- Pickering emulsions and particle stabilization
- biodegradable polymer synthesis and properties
- Hydrogels: synthesis, properties, applications
- Polysaccharides and Plant Cell Walls
- Enzyme-mediated dye degradation
- Biofuel production and bioconversion
- Advanced Materials and Mechanics
- Dyeing and Modifying Textile Fibers
- Advanced Sensor and Energy Harvesting Materials
- Aerogels and thermal insulation
- Proteins in Food Systems
- Surface Modification and Superhydrophobicity
- Wastewater Treatment and Nitrogen Removal
- Catalysis for Biomass Conversion
- Polymer Surface Interaction Studies
- Polysaccharides Composition and Applications
- Nanomaterials for catalytic reactions
- Surfactants and Colloidal Systems
- 3D Printing in Biomedical Research
- Studies on Chitinases and Chitosanases
Nanjing Forestry University
2016-2025
Guizhou Minzu University
2024
Chinese University of Hong Kong
2024
First Hospital of Shanxi Medical University
2008-2024
Shanxi Medical University
2008-2024
Institute of Chemical Industry of Forest Products
2019-2024
Taizhou University
2022-2023
Institute of Optics and Electronics, Chinese Academy of Sciences
2021-2022
Chinese Academy of Sciences
2021-2022
University of Chinese Academy of Sciences
2021-2022
Chitin nanocrystals dispersed in water were successfully prepared by 2,2,6,6-tetramethylpiperidine-1-oxyl radical (TEMPO) mediated oxidation of α-chitin at pH 10 under specific conditions, followed ultrasonic treatment. When the amount NaClO added as co-oxidant was 5.0 mmol/g chitin, weight percentage water-insoluble fraction TEMPO-oxidized chitin 90%, and its carboxylate content reached 0.48 mmol/g. Since thus had a crystallinity high that original α-chitin, C6 groups formed TEMPO-mediated...
A procedure for preparing individualized chitin nanofibers 3−4 nm in cross-sectional width and at least a few microns length was developed. The key factors to prepare the with such high aspect ratios are as follows: (1) squid pen β-chitin is used starting material (2) ultrasonication of water pH 0.1−0.3% consistency minutes. Transparent highly viscous dispersions can be obtained by this method. No N-deacetylation occurs on molecules during nanofiber conversion procedure. Moreover, original...
Highly charged (zeta potential ζ = +105 mV, acetate counterions) chitin nanoparticles (NCh) of three different average aspect ratios (∼5, 25, and >60) were obtained by low-energy deconstruction partially deacetylated chitin. The effective in reducing the interfacial tension stabilized oil/water interface via network formation (interfacial dilatational rheology data) becoming stabilizing Pickering systems, depending on NCh size, composition, formulation variables. improved wettability...
Deep eutectic solvents (DESs) have potential applications in biomass conversion and green chemicals due to their cost-effectiveness environmentally friendly properties. This study reports on a feasible method of using DESs for lignin selective extraction from poplar wood meal. obtained various hydrogen-bond donors acceptors were used evaluate the dissolving capacity Among DESs, lactic acid: choline chloride (9 : 1) exhibits optimal capacity, which is capable selectively 95% meal at 120°C 6...
Partially deacetylated α-chitin nanofibers/nanowhiskers mixtures (DEChNs) and TEMPO-oxidized nanowhiskers (TOChNs) that had positive negative charges, respectively, were transformed into hydrogels with mass concentrations of 0.2, 0.4, 0.6, 0.8, 1.0% under ammonium hydroxide or hydrochloric acid "gas phase coagulation". To the best our knowledge, 0.2% is lowest content reported for successful preparation physical self-standing based on chitin nanofibers/nanowhiskers. The even uniform...
Tensan silk, a natural fiber produced by the Japanese oak silk moth ( Antherea yamamai, abbreviated to A. yamamai), features superior characteristics, such as compressive elasticity and chemical resistance, when compared more common from domesticated silkworm, Bombyx mori B. mori). In this study, "structure-property" relationships within yamamai are disclosed different structural hierarchies, confirming outstanding toughness dominated distinct mesoscale fibrillar architectures. Inspired...
High yield (>85%) and low-energy deconstruction of never-dried residual marine biomass is proposed following partial deacetylation microfluidization. This process results in chitin nanofibrils (nanochitin, NCh) ultrahigh axial size (aspect ratios up to 500), one the largest for bioderived nanomaterials. The nanochitins are colloidally stable water (ζ-potential = +95 mV) produce highly entangled networks upon pH shift. Viscoelastic strong hydrogels formed by ice templating freezing thawing...
Inspired by its unique porous structure, high value-added functional hydrogels combined with metal nanoparticles can lead to applications in different areas, including environmental catalysis. For this purpose, controlling the nanoparticle size is paramount. Herein, lignocellulose hydrogel (LCG) lignin contents served as matrix for situ-synthesizing silver–lignin (Ag-L NPs), LCG reducing and capping agent of Ag-L NPs content control NPs. The well-dispersed network ensures immobilization...
An environmentally benign surface modification process for plastic films was demonstrated by fabricating composite coatings through layer-by-layer assembly with green solid materials: aqueous dispersions of two kinds crystalline polysaccharide nanofibrils. Anionic cellulose nanofibrils were obtained the TEMPO (2,2,6,6-tetramethylpiperidine-1-oxyl radical)-mediated oxidation native cellulose, while cationic β-chitin prepared protonation squid pen chitin. Uniform layer depositions, driven...
The 2,2,6,6-tetramethylpiperidine-1-oxyl (TEMPO)/laccase/O2 system was used to prepare cellulose nanofibers from wood without requiring any chlorine-containing oxidant. Laccase degraded by oxidized TEMPO (TEMPO+) formed laccase-mediated oxidation with O2, which competed the of cellulose. Thus, large amounts laccase and a long reaction time were needed introduce ∼0.6 mmol g–1 C6-carboxylate groups onto TEMPO/laccase/O2 underwent one-way reduced through TEMPO+. When applied again following...