Results 41 to 50 of about 74,061 (70)

Pressurized Liquid Extraction of Antioxidant and α-Amylase-Inhibitory Compounds from Red Seaweed Using Water–Ethanol Mixtures

Molecules
Red seaweeds from the coastal shores of Ilo (Peru) are a natural source of high-value compounds beneficial to health due to their high antioxidant capacity.
Nils Leander Huamán-Castilla, Erik Edwin Allcca-Alca, Frank Hervas Nina, Nilton Cesar León-Calvo, Franz Zirena Vilca, Yesica Luz Vilcanqui Chura   +5 more
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Reactions of an Anionic Gallylene with Azobenzene or Azide Compounds Through C(sp²)–H and C(sp³)–H Activation

Molecules
The activation of inert C–H bonds remains a challenge in current chemistry. Here, we report the excellent reactivity of the anionic gallylene species [LGa:][Na(THF)3] (L = [(2,6-iPr2C6H3)NC(CH3)]22−, 1) that allows the selective activation one ortho sp2 ...
Jinfeng Sun, Fangfeng Chen, Juan Liu, Yihu Zhang, Dongyu He, Vladimir A. Dodonov, Yanxia Zhao   +6 more
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Staphylea bumalda Alleviates Dextran Sulfate Sodium-Induced Ulcerative Colitis in Mice by Regulating Inflammatory Cytokines, Oxidative Stress, and Maintaining Gut Homeostasis

Molecules
Staphylea bumalda is a rare medicine and edible shrub native to the temperate regions of Asia, possessing significant medicinal potential. In this study, the components of S.
Lu Wang, Sha Long, Qi Zeng, Wanrong Dong, Yaoyao Li, Jiangtao Su, Yuxin Chen, Gao Zhou   +7 more
doaj   +1 more source

Keep Your TEMPO Up: Nitroxide Radicals as Sensors of Intermolecular Interactions

Molecules
This study examines experimental data on the influence of the surrounding medium and non-covalent interactions on the isotropic hyperfine coupling constant, Aiso(14N), of the stable nitroxide radical 2,2,6,6-Tetramethylpiperidin-1-yl)oxyl (TEMPO) in ...
Ilya G. Shenderovich
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Structural and Biological Studies of Bioactive Silver(I) Complexes with Coumarin Acid Derivatives

Molecules
Two new Ag(I) complexes with coumaric carboxylic acid derivatives have been synthesized. Structural studies of these noncrystalline complexes have been performed using a methodology that combines laboratory and synchrotron techniques, supported by ...
Anna Wolska, Aleksandra Drzewiecka-Antonik, Cristina Aparecida Barboza, Marta Struga, Joanna Stefanska, Pawel Rejmak, Marcin Klepka   +6 more
doaj   +1 more source

Electronic Effects in Cobalt Phthalocyanine Catalysts Towards Noble-Metal-Free, Photocatalytic CO₂-to-CO Reduction

Molecules
Noble-metal-free CO2 reduction systems based on cobalt phthalocyanine (CoPc) and its derivatives have demonstrated remarkable photocatalytic performances; however, their structure-activity relationship with electronic tuning remains unexplored.
Fan Ma, Hong-Wei Lin, Zizi Li, Wen-Jing Li, Jia-Wei Wang, Gangfeng Ouyang   +5 more
doaj   +1 more source

Stimuli-Responsive Vesicles and Hydrogels Formed by a Single-Tailed Dynamic Covalent Surfactant in Aqueous Solutions

Molecules
Controlling the hierarchical self-assembly of surfactants in aqueous solutions has drawn much attention due to their broad range of applications, from targeted drug release, preparation of smart material, to biocatalysis.
Chunlin Xu, Na Sun, Huaixiu Li, Xingchen Han, Ailing Zhang, Panpan Sun   +5 more
doaj   +1 more source

Optimization of the Process of Extracting Polysaccharides from Agrocybe aegerita and In Vitro Antioxidant and Anti-Aging Tests

Molecules
The extraction process of crude polysaccharides from Agrocybe aegerita was optimized, and the antioxidant and anti-aging effects of the crude polysaccharides were evaluated.
Yuhan Wang, Jingyi Yang, Xiang Li, Jingshuo Yang, Honglei Wang   +4 more
doaj   +1 more source

Pt Nanoparticles on Multi-Walled Carbon Nanotubes with High CO Tolerance for Methanol Electrooxidation

Molecules
Anode catalysts are important for direct methanol fuel cells (DMFCs) of energy conversion. Herein, we report a novel strategy by ethylene glycol-based deep eutectic solvents (EG-DESs) for the fabrication of a multi-walled carbon nanotubes (MWCNTs ...
Pingping Yang, Shiming Dong, You Shu, Xuejiao Wei   +3 more
doaj   +1 more source

Recent Advances in the Utilization of Chiral Covalent Organic Frameworks for Asymmetric Photocatalysis

Molecules
The use of light energy to drive asymmetric organic transformations to produce high-value-added organic compounds is attracting increasing interest as a sustainable strategy for solving environmental problems and addressing the energy crisis.
Peng Liu, Weijun Dai, Xianfu Shen, Xiang Shen, Yuxiang Zhao, Jian-Jun Liu   +5 more
doaj   +1 more source