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Two-wavelength-selective Soft Actuators Comprising Thermosensitive and Lanthanoid-ion-coordinated Interpenetrating Polymer Network Gels.
J Oleo Sci
January 2025
Graduate School of Science and Technology, Kumamoto University.
Near-infrared wavelength-selective soft actuators have attracted much attention for applications in microsystems in bioliving. It is desirable for the photothermal conversion materials in the actuators to be downsized to the molecular scale. However, in conventional actuator materials using copolymer gels composed of thermosensitive and photothermal conversion molecule-coordinated monomers, the strong cross-linking of molecules in the networks impairs the actuator deformation.
View Article and Find Full Text PDFκ-Carrageenan tetrasaccharide ameliorates particulate matter-induced defects in skin hydration of human keratinocytes cells and skin barrier disorders.
Int J Biol Macromol
January 2025
College of Ocean Food and Biological Engineering, Jimei University, Xiamen 361021, China; Fujian Provincial Key Laboratory of Food Microbiology and Enzyme Engineering, Xiamen 361021, China. Electronic address:
Urban air pollutants, mainly represented by PM containing organic and inorganic substances, can penetrate the human skin and trigger oxidative stress, potentially causing skin barrier damage and aging. κ-Carrageenan oligosaccharides as degradation products of natural sulfated polysaccharide have a great potential for skin moisturization as well as improving oxidative stress and inflammation. In this study, κ-carrageenan tetrasaccharide was obtained by enzymatic digestion of κ-carrageenan, and its role in alleviating particulate matter-induced inflammatory response in HaCaT keratinocyte cell line and skin barrier dysfunction was evaluated.
View Article and Find Full Text PDFDeep eutectic solvent-enabled lignocellulosic biomass valorization: Toward understanding of biomass pretreatment, lignin dissolution, and lignin's antioxidant activity.
Int J Biol Macromol
January 2025
State Key Laboratory of Organic-Inorganic Composites, College of Life Science and Technology, Beijing University of Chemical Technology, No. 15 East Road of North Third Ring Road, Chao Yang District, Beijing 100029, China. Electronic address:
A comprehensive study was conducted to determine the effects of water and ethylene glycol (EG) on biomass pretreatment using a binary deep eutectic solvent (DES) containing choline chloride and acetic acid (1ChCl3AC) at a mole ratio of 1:3. Different quantities of water and EG were combined with 1ChCl3AC to pretreat wheat straw, miscanthus, eucalyptus, and sorghum stalk at 130 °C for 6 h. The changes in nanopore structure and surface roughness of wet biomass, as well as biomass crystallinity after 1ChCl3AC-based pretreatment were investigated using XRD and small-angle neutron scattering (SANS).
View Article and Find Full Text PDFUnraveling the interaction of dissolved organic matter and microorganisms with internal phosphorus cycling in the floodplain lake ecosystem.
Environ Res
January 2025
College of Environmental Science and Engineering, Hunan University, Changsha 410082, P.R. China; Key Laboratory of Environment Biology and Pollution Control, Hunan University, Ministry of Education, Changsha 410082, P.R. China. Electronic address:
Internal nutrient cycling, especially phosphorus (P), is of great influence in lake eutrophication. Dissolved organic matter (DOM) and microorganisms are ubiquitous in the sediments and closely associated with P-cycling. However, the underlying interactions of DOM, microorganisms and P in floodplain lake area with different hydrological characteristics remain scarce.
View Article and Find Full Text PDFNamed reaction in carbohydrate chemistry: A review.
Carbohydr Res
January 2025
Department of Chemistry, Jamia Millia Islamia, Jamia Nagar, Okhla, New Delhi, 110025, India. Electronic address:
Central to the synthetic organic chemist's armoury are the organic/inorganic reagents which are employed to effect a broad range of structural changes. Herein, we report a collection of 29 organic named reactions applicable in the carbohydrate chemistry, arranged in alphabetical order. In this contribution, we have displayed general schemes, examples and probable reaction mechanism for each chemical reaction.
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