Results 51 to 60 of about 1,594,384 (300)

Cosmic-ray-mediated Formation of Benzene on the Surface of Saturn's Moon Titan [PDF]

, 2010
The aromatic benzene molecule (C_6H_6)—a central building block of polycyclic aromatic hydrocarbon molecules—is of crucial importance for the understanding of the organic chemistry of Saturn's largest moon, Titan. Here, we show via laboratory experiments
Kaiser, Ralf I., Landera, Alexander, Liang, Mao-Chang, Mebel, Alexander M., Yung, Yuk L., Zheng, Weijun, Zhou, Li   +6 more
core   +1 more source

The (Glg)ABCs of cyanobacteria: modelling of glycogen synthesis and functional divergence of glycogen synthases in Synechocystis sp. PCC 6803

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, Dimitrios Bekiari, Sofia Doello, Karl Forchhammer   +3 more
wiley   +1 more source

Bromine radical as a visible-light-mediated polarity-reversal catalyst

iScience, 2021
Summary: Polarity-reversal catalysts enable otherwise sluggish or completely ineffective reactions which are characterized by unfavorable polar effects between radicals and substrates. We herein disclose that when irradiated by visible light, bromine can
Han Wang, Haiwang Liu, Mu Wang, Meirong Huang, Xiangcheng Shi, Tonglin Wang, Xu Cong, Jianming Yan, Jie Wu   +8 more
doaj   +1 more source

Machine Learning, Quantum Mechanics, and Chemical Compound Space

, 2016
We review recent studies dealing with the generation of machine learning models of molecular and solid properties. The models are trained and validated using standard quantum chemistry results obtained for organic molecules and materials selected from ...
Adamo, Arsenault, Balabin, Baldi, Bartók, Behler, Behler, Bereau, Bereau, Botu, Botu, Büttiker, Caccin, Curtiss, Dobson, Dral, Dral, Drwal, Faber, Faber, Faulon, Feynman, Fisher, Frisch, Furche, Ghasemi, Ghiringhelli, Golbraikh, Grimme, Hammett, Hammett, Hansen, Hansen, Hansen, Harvey, Hastie, Helgaker, Ho, Hoffmann, Hu, Huan, Hättig, Ivanciuc, Jensen, Karthikeyan, Kayala, Kirkpatrick, Kohn, Kubinyi, Landauer, Landauer, Li, Lipinski, Lopez-Bezanilla, Lorenz, Lusci, Manzhos, Manzhos, Meredig, Misra, Montavon, Montavon, Moussa, Müller, Nørskov, Parr, Perdew, Perdew, Pettifor, Pilania, Popelier, Prodan, Pyykko, Pyzer-Knapp, Ramakrishnan, Ramakrishnan, Ramakrishnan, Ramakrishnan, Ramakrishnan, Rappé, Rasmussen, Ruddigkeit, Rupp, Rupp, Rupp, Rupp, Sadowski, Schatz, Schneider, Schölkopf, Schütt, Snyder, Stevens, Stewart, Stewart, Sumpter, Tikhonov, Todeschini, Tuckerman, van Duin, von Lilienfeld, von Lilienfeld, Wagner, Weigend, Yanai, Zheng, Álvarez-Moreno   +106 more
core   +1 more source

Organ‐specific redox imbalances in spinal muscular atrophy mice are partially rescued by SMN antisense oligonucleotides

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

Synthesis of poly-α/β-peptides with tunable sequence via the copolymerization on N-carboxyanhydride and N-thiocarboxyanhydride

iScience, 2021
Summary: The fascinating functions of proteins and peptides in biological systems have attracted intense interest to explore their mimics using polymers, including polypeptides synthesized from polymerization.
Min Zhou, Jingcheng Zou, Longqiang Liu, Ximian Xiao, Shuai Deng, Yueming Wu, Jiayang Xie, Zihao Cong, Zhemin Ji, Runhui Liu   +9 more
doaj   +1 more source

Bases of inorganic and organic chemistry [PDF]

, 2016
Stated fundamental theoretical principles of general, inorganic and organic chemistry and analyzed the reactivity of the most important classes of inorganic and organic substances. A multivariate tasks and exercises for classroom and independent work are
Alami, D., Slavkova, M., Ved, M.
core  

A self optimizing synthetic organic reactor system using real-time in-line NMR spectroscopy [PDF]

, 2015
A configurable platform for synthetic chemistry incorporating an in-line benchtop NMR that is capable of monitoring and controlling organic reactions in real-time is presented.
Cronin, Leroy, Dragone, Vincenza, Porwol, Luzian, Sans Sangorrin, Victor   +3 more
core   +2 more sources

Gut microbiome and aging—A dynamic interplay of microbes, metabolites, and the immune system

FEBS Letters, EarlyView.
Age‐dependent shifts in microbial communities engender shifts in microbial metabolite profiles. These in turn drive shifts in barrier surface permeability of the gut and brain and induce immune activation. When paired with preexisting age‐related chronic inflammation this increases the risk of neuroinflammation and neurodegenerative diseases.
Aaron Mehl, Eran Blacher
wiley   +1 more source

Direct allylic acylation via cross-coupling involving cooperative N‑heterocyclic carbene, hydrogen atom transfer, and photoredox catalysis

Nature Communications, 2023
Herein, we report a mild, operationally simple, multicatalytic method for the synthesis of β,γ-unsaturated ketones via allylic acylation of alkenes. Specifically, the method combines N‑heterocyclic carbene catalysis, hydrogen atom transfer catalysis, and
Xiaochen Wang, Rongxin Yang, Binbing Zhu, Yuxiu Liu, Hongjian Song, Jianyang Dong, Qingmin Wang   +6 more
doaj   +1 more source