Results 31 to 40 of about 285,996 (265)
New efficient ligand for sub-mol % copper-catalyzed C–N cross-coupling reactions running under air
Beilstein Journal of Organic Chemistry, 2012 A new efficient ligand, N,N’’-dimethyldiethylene triamine (DMDETA), has been synthesized and evaluated for sub-mol % copper-catalyzed C–N cross-coupling reactions. The efficiency of the ligand was determined by kinetic methods.
Per-Fredrik Larsson +2 more
doaj +1 more source
Load-Isolation Wireless Power Transfer With K-Inverter for Multiple-Receiver Applications
IEEE Access, 2018 Disturbances among the receivers caused by irrelevant circuit topology and inductive cross couplings among the receiving coils are particularly problematic aspects of multi-receiver wireless power transfer (WPT) systems.
Jiwei Kuang +4 more
doaj +1 more source
FEBS Letters, EarlyView.We reconstituted Synechocystis glycogen synthesis in vitro from purified enzymes and showed that two GlgA isoenzymes produce glycogen with different architectures: GlgA1 yields denser, highly branched glycogen, whereas GlgA2 synthesizes longer, less‐branched chains.
Kenric Lee +3 more
wiley +1 more source
One-pot three-component synthesis and photophysical characteristics of novel triene merocyanines
Beilstein Journal of Organic Chemistry, 2014 Novel triene merocyanines, i.e. 1-styryleth-2-enylidene and 4-(1,3,3-trimethylindolin-2-ylidene)but-2-en-1-ylideneindolones are obtained in good to excellent yields in a consecutive three-component insertion Sonogashira coupling–addition sequence.
Christian Muschelknautz +3 more
doaj +1 more source
Synthesis and Characterization of New Organic Dyes Containing the Indigo Core
Molecules, 2020 A new series of symmetrical organic dyes containing an indigo central core decorated with different electron donor groups have been prepared, starting from Tyrian Purple and using the Pd-catalyzed Stille-Migita coupling process.
Daniele Franchi +6 more
doaj +1 more source
Synthesis of Cross-Coupled Filters With Frequency-Dependent Couplings [PDF]
IEEE Transactions on Microwave Theory and Techniques, 2017 This paper presents a novel synthesis technique for coupled-resonator filters with frequency-dependent couplings. Unlike the works so far appeared in the literature, the proposed technique is not based on the optimization of a network with assigned topology, but it consists in the explicit synthesis of a folded prototype with frequency-dependent ...
Tamiazzo, Stefano +1 more
openaire +1 more source
FEBS Letters, EarlyView.We identified a systemic, progressive loss of protein S‐glutathionylation—detected by nonreducing western blotting—alongside dysregulation of glutathione‐cycle enzymes in both neuronal and peripheral tissues of Taiwanese SMA mice. These alterations were partially rescued by SMN antisense oligonucleotide therapy, revealing persistent redox imbalance as ...
Sofia Vrettou, Brunhilde Wirth
wiley +1 more source
Nature CommunicationsThe (hetero)aryl sulfoximines are important structures for developing bioactive molecules, whose synthesis relies on oxidation of (hetero)aryl sulfilimines. However, asymmetric approaches for assembling (hetero)aryl sulfilimines are still rare.
Mingchuang He +4 more
doaj +1 more source
Structural insights into an engineered feruloyl esterase with improved MHET degrading properties
FEBS Letters, EarlyView.A feruloyl esterase was engineered to mimic key features of MHETase, enhancing the degradation of PET oligomers. Structural and computational analysis reveal how a point mutation stabilizes the active site and reshapes the binding cleft, expading substrate scope.
Panagiota Karampa +5 more
wiley +1 more source
Design of charge pump negative voltage power supply chip with wide input range and low output ripple
Dianzi Jishu YingyongIn order to solve the problem of serious electromagnetic interference of inductive power supply chip and large output ripple of capacitive power supply chip, a capacitive power supply chip is designed.
Guo Wei +3 more
doaj +1 more source