Results 171 to 180 of about 30,977 (246)

Tailoring High‐Valent Iron‐Oxo Species Redox via Extended π‐Fe3d–O2p Orbital Overlapping Toward Chemical‐Efficient Water Purification

Angewandte Chemie, EarlyView.
We address the long‐standing challenge of reactivity–selectivity trade‐off by precisely tuning the redox properties of Fe(IV), rather than simply accelerating its formation, to enable chemically efficient and low‐emission water treatment. ABSTRACT High‐valent iron oxo species (Fe(IV)) are attractive for wastewater treatment because of their high ...
Hongyu Zhou, Junwen Chen, Jiuyi Wang, Xinhao Wang, Qiming Zhang, Shiying Ren, Xuning Li, Li Gao, Shaobin Wang, Xiaoguang Duan   +9 more
wiley   +2 more sources

¹⁵N Stable Isotope Labeling and Comparative Metabolomics Facilitates Genome Mining in Cultured Cyanobacteria. [PDF]

ACS Chem Biol, 2020
May DS, Crnkovic CM, Krunic A, Wilson TA, Fuchs JR, Orjala JE.   +5 more
europepmc   +1 more source

Increasing TET Expression and 5‐Hydroxymethylcytosine Formation by a Carbocyclic 5‐Aza‐2′‐deoxy‐cytidine Antimetabolite

Angewandte Chemie, EarlyView.
The carbocyclic Decitabine analog (cAzadC) incorporates as an antimetabolite weakly into the genome of growing tumor cells, where it triggers a genome‐wide demethylation and a surprisingly strong hydroxymethylation of cytosine, which translates into an efficient in vivo antitumor (AML) effect.
Maike Däther, Elsa Peev, Annika Fröhlich, Binje Vick, Sogol Fatourechi, Gilles Gasparoni, Matthias Heiss, Corinna C. Pleintinger, Emmanuel Asu Bisong, Hans Hurmiz, Davide Guglielminotti, Yasmin V. Gärtner, Tina Aumer, Karsten Spiekermann, Jörn Walter, Irmela Jeremias, Franziska R. Traube, Thomas Carell   +17 more
wiley   +2 more sources

Dynamic Measurement of Protein Translation in Mycobacteria Using Nontargeted Stable Isotope Labeling in Combination with MALDI-TOF Mass Spectrometry-Based Readout. [PDF]

Anal Chem
Haisch C, Neumann-Cip AC, Imhof A, Schmidt A, Forne I, Hoelscher M, Wieser A.   +6 more
europepmc   +1 more source

Ketazine‐Linked Covalent Organic Framework for Metal‐Free Electrocatalytic Nitrate‐to‐Ammonia Conversion

Angewandte Chemie, EarlyView.
A metal‐free fluorinated ketazine‐linked COF is introduced as an efficient electrocatalyst for nitrate reduction to ammonia under neutral conditions. Fluorine substitution enhances π–π stacking and crystallinity, enabling a Faradaic efficiency of 59.9% and an NH3 yield rate of 1639.9 µmol h−1 mgCOF−1 at −0.9 V versus RHE. This establishes an unexplored
Islam E. Khalil, Ashadul Adalder, Badr Elkamash, Narad Barman, Darosch Asgari, Luoxing Xiang, Warisha Tahir, Franziska Hess, Ranjit Thapa, Adisak Boonchun, Uttam Kumar Ghorai, Prasenjit Das, Arne Thomas   +12 more
wiley   +2 more sources

Analytical methods for stable isotope labeling to elucidate rapid auxin kinetics in Arabidopsis thaliana. [PDF]

PLoS One
Tang Q, Tillmann M, Cohen JD.
europepmc   +1 more source

Chelator‐Free Radiometal Labeling Inside Engineered Affibodies

Angewandte Chemie, EarlyView.
Affibodies are compact and robust three‑helix binders used in imaging and therapy. Engineering a triple‑cysteine motif into their core enables chelator‑free binding of important radiometals, like Bi(III), Pb(II), In(III), and Ga(III) with rapid uptake and exceptional stability.
Lani J. Davies, Upamali Somathilake, Santhanalaxmi Kumaresan, Frank Bruchertseifer, Alfred Morgenstern, Sarah Spreckelmeyer, Christoph Nitsche   +6 more
wiley   +2 more sources

Tracing de novo Lipids using Stable Isotope Labeling LC-TIMS-TOF MS/MS. [PDF]

J Vis Exp
Castro KD, Tose LV, Willetts M, Park MA, Nouzova M, Noriega FG, Fernandez-Lima F.   +6 more
europepmc   +1 more source

Qualitative and Quantitative Analysis of Regional Cerebral Free Fatty Acids in Rats Using the Stable Isotope Labeling Liquid Chromatography-Mass Spectrometry Method. [PDF]

Molecules, 2020
Hu T, Zhu Q, Hu Y, Kamal GM, Feng Y, Manyande A, Wang J, Xu F.   +7 more
europepmc   +1 more source

Entropy‐Stabilized Aluminate Catalysts That Break the Activity–Stability Tradeoff in CF4 Hydrolysis

Angewandte Chemie, EarlyView.
Entropy‐stabilized aluminate breaks the activity–stability tradeoff in CF4 hydrolysis by combining a multication aluminate framework with an entropy‐stabilized lattice. An electron‐deficient Al–O environment is F‐philic but O‐phobic, enabling C–F activation while suppressing H2O poisoning. Under steam‐rich, strongly fluorinating conditions, the entropy‐
Seunghyuck Chi, Hyungmin Jeon, Yaejun Baik, DongHwan Oh, Jin Seok, Woosung Choi, Seungjun Lee, Minkee Choi   +7 more
wiley   +2 more sources