Results 31 to 40 of about 1,429,912 (267)

Effects of Plasma Power on By-Product Gas Formation from CHF₃ and CH₂F₂ Process Gases in Semiconductor Etching Processes

Applied Sciences
In semiconductor manufacturing, fluorinated gases such as CHF3 and CH2F2 are widely used as process gases for plasma etching and cleaning. However, their decomposition within the plasma environment leads to the formation of secondary fluorinated by ...
Dae Kee Min, Jiyun Woo, Joohee Lee, Bong-Jae Lee, Eui-chan Jeon   +4 more
doaj   +1 more source

Cobalt-catalyzed C–H cyanations: Insights into the reaction mechanism and the role of London dispersion

Beilstein Journal of Organic Chemistry, 2018
Carboxylate-assisted cobalt(III)-catalyzed C–H cyanations are highly efficient processes for the synthesis of (hetero)aromatic nitriles. We have now analyzed the cyanation of differently substituted 2-phenylpyridines in detail computationally by density ...
Eric Detmar, Valentin Müller, Daniel Zell, Lutz Ackermann, Martin Breugst   +4 more
doaj   +1 more source

Synergistic photocatalytic activity of a combination of carbon nanotubes-graphene-nickel foam nanocomposites enhanced by dielectric barrier discharge plasma technology for water purification

Water Science and Technology, 2021
Degradation activity of plasma catalysis between dielectric barrier discharge (DBD) and carbon nanotubes-graphene-nickel foam (CNTs-G-Nif) has been studied in treatment of dye wastewater.
Qihui Xu, Shuaikang Fang, Yin Chen, Jae Kwang Park, Chao Pan, Yongjun Shen, Na Zhu, Huifang Wu   +7 more
doaj   +1 more source

Protein pyrophosphorylation by inositol pyrophosphates — detection, function, and regulation

FEBS Letters, EarlyView.
Protein pyrophosphorylation is an unusual signaling mechanism that was discovered two decades ago. It can be driven by inositol pyrophosphate messengers and influences various cellular processes. Herein, we summarize the research progress and challenges of this field, covering pathways found to be regulated by this posttranslational modification as ...
Sarah Lampe, Tanmay Kumar Mohanty, Rashna Bhandari, Dorothea Fiedler   +3 more
wiley   +1 more source

ZnIn2S4 with a hybrid reaction mechanism and sulfur vacancies for sustainable sodium storage

Carbon Energy
Conventional monometallic sulfides are usually conversion or conversion‐alloying‐dominated anodes, while the sluggish kinetics and severe volume variation greatly hamper their electrochemical properties in sodium‐ion batteries.
Yu Wang, He He Zhang, Zi Wen, Chang Ning Sun, Guo Yong Wang, Ming‐Sheng Wang, Chun Cheng Yang, Qing Jiang   +7 more
doaj   +1 more source

Iron Redox Cycling in Persulfate Activation: Strategic Enhancements, Mechanistic Insights, and Environmental Applications—A Review

Nanomaterials
Iron-based catalysts for peroxymonosulfate (PMS) and peroxydisulfate (PDS) activation represent a cornerstone of advanced oxidation processes (AOPs) in environmental remediation, prized for their cost-effectiveness, environmental compatibility, and high ...
Zutao Zhang, Fengyang Du, Hongliang Shi, Huanzheng Du, Peiyuan Xiao   +4 more
doaj   +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

Challenges in Mechanistic Investigation of a Flexible Aminocatalyst as Demonstrated through Enamine Formation

ChemistryOpen
Asymmetric catalysis has become a prominent topic in synthesis over recent decades. Conformational changes in the catalyst core play a significant role in the reaction, determining both its rate and selectivity.
Irina Osadchuk, Tõnis Kanger
doaj   +1 more source

Uncovering the Mechanism of Azepino‐Indole Skeleton Formation via Pictet–Spengler Reaction by Strictosidine Synthase: A Quantum Chemical Investigation

ChemistryOpen, 2023
Strictosidine synthase (STR) catalyzes the Pictet–Spengler (PS) reaction of tryptamine and secologanin to produce strictosidine. Recent studies demonstrated that the enzyme can also catalyze the reaction of non‐natural substrates to form new alkaloid ...
Mingqi Mou, Dr. Chenghua Zhang, Dr. Shiqing Zhang, Fuqiang Chen, Dr. Hao Su, Prof. Dr. Xiang Sheng   +5 more
doaj   +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