Results 71 to 80 of about 48,807 (291)

Crystallization of enantiomers [PDF]

, 2006
Pure enantiomers are of large interest for several industries. Chemical synthesis is frequently not selective and provides racemic mixtures causing a large interest in efficient separation processes.
Sapoundjiev, D., Seidel-Morgenstern, A., Elsner, M., Elsner, M. P., Lorenz, H., Perlberg, A.   +5 more
core   +1 more source

Lead‐Free Chiral Hybrid Metal Halides for Circularly Polarized Light‐Emitting Diodes

Advanced Optical Materials, EarlyView.
Lead‐free chiral hybrid metal halides provide a versatile platform for realizing chiroptical responses through chiral modulation of metal–halide frameworks with diverse dimensionalities, induces inversion‐symmetry breaking and enables dissymmetric excited‐state transitions toward efficient circularly polarized luminescence and electroluminescence. This
Kun Zhu, Li Wan
wiley   +1 more source

Capillary electrochromatographic separation of enantiomers on chemically bonded type of cellulose derivative chiral stationary phases with a positively charged spacer [PDF]

, 2003
Positively charged chiral stationary phases (CSPs) were prepared for capillary electrochromatography (CEC) separation of enantiomers by chemically immobilizing cellulose derivatives onto diethylenetriaminopropylated silica (DEAPS) with tolylene-2,4 ...
Zou, HF, Guo, BC, Chen, XM, Jin, WH, Qin, F, Liu, YQ   +5 more
core   +1 more source

Heme‐NO Dilates Arteries via Mobilization of NO Moieties From an Intracellular NO Store Within Vascular Smooth Muscle Cells

Advanced Science, EarlyView.
Nitrosyl heme emerges as an extracellular nitrodilator that dilates arteries without crossing the cell membrane. Instead, heme‐NO mobilizes NO moieties from a preformed intracellular NO store within vascular smooth muscle, providing both functional and chemical evidence for the NANOS model, revealing a previously unrecognized mechanism of arterial ...
Taiming Liu, Meijuan Zhang, Lingchao Zhu, Haiyan Ke, Amancio de Souza, Qian Li, Daniel Castella, Nicolai Lehnert, Lubo Zhang, Arlin B. Blood   +9 more
wiley   +1 more source

Anti-Inflammatory Activity of Two Labdane Enantiomers from Gymnosperma glutinosum: An In Vivo, In Vitro, and In Silico Study

Pharmaceuticals
Background/Objectives: Diseases associated with inflammatory processes continue to grow steadily throughout the world. Unfortunately, prolonged use of drugs induces adverse effects ranging from hypersensitivity reactions to damage to the digestive system.
Salud Pérez-Gutiérrez, Nimsi Campos-Xolalpa, Sofía A. Estrada-Barajas, Alan Carrasco-Carballo, Angel Mendoza, Ernesto Sánchez-Mendoza   +5 more
doaj   +1 more source

Chiral Nanoparticles Suppress Inflammatory Infiltration to Promote Extracellular Matrix Remodeling for Ectopia Lentis Therapy

Advanced Science, EarlyView.
L‐cysteine‐configured chiral polyurethane nanoparticles suppress ocular inflammation and reduce extracellular matrix (ECM) degradation in ectopia lentis by regulating macrophages polarization and inhibiting nuclear factor kappa B signaling pathway. By promoting zonular fiber‐associated protein restoration and tissue repair, this minimally invasive ...
Yinuo Wen, Yan Yang, Haihan Gao, Yan Liu, Xinyue Wang, Linghao Song, Ruohong Li, Ao Miao, Jie Xu, Zhennan Zhao, Dan Li, Shenjie Peng, Linzhao Li, Min Zhang, Yonghang Liu, Liren Wang, Tianhui Chen, Yongxiang Jiang   +17 more
wiley   +1 more source

Chemical and Enantioselective Analysis of the Leaf Essential Oil from Varronia crenata Ruiz & Pav. Growing in Ecuador

Molecules
Essential oils from species of the genus Varronia (Boraginaceae) are recognized for their chemical diversity and biological potential; however, phytochemical information on Varronia crenata Ruiz & Pav. remains scarce, despite its wide distribution in the
Karem Cazares, Yessenia E. Maldonado, Nixon Cumbicus, Gianluca Gilardoni, Omar Malagón   +4 more
doaj   +1 more source

Study of interaction between drug enantiomers and serum albumin by capillary electrophoresis [PDF]

, 1999
The interaction between drugs and human serum albumin (HSA) was investigated by capillary electrophoresis (CE). It involves stereoselectivity, drug displacement and synergism effects.
Zhu, XF, Ding, YS, Lin, BC
core  

Cobalt/Photoredox Catalyzed Desymmetrization of Oxo and Azabicycles via Asymmetric Reductive Coupling With Alkynes

Advanced Science, EarlyView.
A one‐step, asymmetric reductive coupling of alkynes and oxa‐ and aza‐bicyclic olefins using a cobalt/photoredox catalytic system through desymmetrization. ABSTRACT Bicyclo[2.2.1]heptane frameworks represent a privileged structural motif prevalent in numerous natural products and bioactive molecules.
Subhankar Pradhan, Arko Saha, Bholanath Maity, Sayan Dutta, Luigi Cavallo, Basker Sundararaju   +5 more
wiley   +1 more source

Dissimilar effects of stereoisomers and racemic hydroxychloroquine on Ca2+ oscillations in human induced pluripotent stem cell‐derived cardiomyocytes

Physiological Reports, 2023
All currently employed pharmaceutical formulations of hydroxychloroquine (HCQ) sulfate are a racemate, consisting of equal parts mixture of two stereoisomers: R(−)HCQ and S(+)HCQ sulfates.
Piotr K. Janicki, Amandeep Singh, Arun K. Sharma, Victor Ruiz‐Velasco   +3 more
doaj   +1 more source