Results 81 to 90 of about 1,644,826 (290)

Covalent Organic Framework–Carbon Nanotube Core–Shell Nanohybrids for Enhanced Catalytic Site Utilization of Molecular Catalysts in CO2 Electroreduction

Angewandte Chemie, EarlyView.
Covalent organic framework–carbon nanotube (COF–CNT) core–shell nanohybrids are developed as an efficient platform to enhance the site utilization of molecular catalysts for electrochemical CO2 reduction. The well‐defined nanostructure promotes catalytic site accessibility, achieving CO turnover frequencies among the highest reported to date.
Liang Yao, Andrés Rodríguez‐Camargo, Roman Guntermann, Fabian Heck, Samuel Van Gele, Hugo Vignolo‐González, Viola Duppel, Thomas Bein, Bettina V. Lotsch   +8 more
wiley   +2 more sources

Glucuronolactone Promotes Mucin Sulfation to Alleviate Deoxynivalenol‐Induced Intestinal Injury via Microbiota‐Dependent and ‐Independent AHR Activation

Advanced Science, EarlyView.
Glucuronolactone (GLU) as a natural metabolite of glucose, increases Lactobacillus amylovorus abundance and luminal IAA level to activate AHR signaling. In addition, GLU itself can directly elevate AHR signaling activity independently of microbiota and IAA.
Chenbin Cui, Beibei Zhang, Jiaxi Tang, Jing Hou, Yueqin Qiu, Kaiguo Gao, Li Wang, Zongyong Jiang, Xuefen Yang   +8 more
wiley   +1 more source

Hyperpolarization of Molecular Deuterium

Angewandte Chemie, EarlyView.
Hyperpolarized molecular deuterium is generated and detected using a nonhydrogenative SABRE catalyst with nicotinamide. The resonance shows a strongly enhanced partially negative line, substrate‐dependent and sensitive to transient intermediates.
Theresa L. K. Hune, Anakin Aden, Julius F. Matz, Denis Moll, Ilya Kuprov, Stefan Glöggler   +5 more
wiley   +2 more sources

∆E/∆E Measurements of Energetic Ions Using CVD Diamond Detectors

Journal of Spectroscopy, 2018
Experimental and computational results of a ΔE/ΔE diamond detection system are presented. The ΔE/ΔE detection system was evaluated using energetic proton and iron beams striking thick polyethylene targets at the NASA Space Radiation Laboratory (NSRL) at ...
Ahmed Alghamdi, Lawrence Heilbronn, Luis A. Castellanos, Eric Lukosi   +3 more
doaj   +1 more source

Heavy iron isotope composition of iron meteorites explained by core crystallization

Nature Geoscience, 2020
Similar to Earth, many large planetesimals in the Solar System experienced planetary-scale processes such as accretion, melting, and differentiation. As their cores cooled and solidified, significant chemical fractionation occurred due to solid metal-liquid metal fractionation. Iron meteorites -- core remnants of these ancient planetesimals -- record a
Peng Ni, Nancy L. Chabot, Caillin J. Ryan, Anat Shahar   +3 more
openaire   +3 more sources

Nonreciprocal Charge Transport in an Iron‐Based Superconductor with Broken Inversion Symmetry Engineered by a Hydrogen‐Concentration Gradient

Advanced Science, EarlyView.
Concentration gradients can serve as a universal platform for breaking spatial inversion symmetry. We demonstrate this concept by observing nonreciprocal electrical transport—a sensitive probe of inversion‐symmetry breaking—in the iron‐based superconductor Sm1111 with an engineered hydrogen gradient.
Takayuki Nagai, Yukito Nishio, Jumpei Matsumoto, Kota Hanzawa, Hidenori Hiramatsu, Hideo Hosono, Tsuyoshi Kimura   +6 more
wiley   +1 more source

Tailoring Electronic Properties of Precision Graphene Nanoribbons via Nanopore Engineering

Angewandte Chemie, EarlyView.
Novel porous graphene nanoribbons incorporating [18]annulene nanopores, together with a nonporous GNR of identical width, have been synthesized. Spectroscopic and theoretical analyses reveal that nanopore incorporation effectively tunes their electronic properties by enlarging the bandgap, reducing charge‐carrier mobility, and modulating exciton ...
Kun Liu, Guanzhao Wen, Gianluca Serra, Nicolás Arisnabarreta, Hongde Yu, Andrea Lucotti, Yarden Peleg Walg, Hartmut Komber, Zhen‐Lin Qiu, Qing‐Song Deng, Ran He, Wenhui Niu, Thomas Heine, Eike Brunner, Mischa Bonn, Steven De Feyter, Matteo Tommasini, Hai I. Wang, Ji Ma, Xinliang Feng   +19 more
wiley   +2 more sources

Neutron spectra measurement and calculations using data libraries CIELO, JEFF-3.2 and ENDF/B-VII.1 in iron benchmark assemblies

EPJ Web of Conferences, 2017
The leakage neutron spectra measurements have been done on benchmark spherical assemblies - iron spheres with diameter of 20, 30, 50 and 100 cm. The Cf-252 neutron source was placed into the centre of iron sphere.
Jansky Bohumil, Rejchrt Jiri, Novak Evzen, Losa Evzen, Blokhin Anatoly I., Mitenkova Elena   +5 more
doaj   +1 more source

Quantitating Iron Transport across the Mouse Placenta In Vivo using Nonradioactive Iron Isotopes. [PDF]

J Vis Exp, 2022
Sangkhae V, Nemeth E.
europepmc   +1 more source

Nanoscale Secondary Ion Mass Spectrometry for Quantifying Membrane Fouling: Fouling Layer Structure and Chemical Interaction

Advanced Science, EarlyView.
Nanoscale secondary ion mass spectrometry (Nano SIMS) is established as a powerful analytical tool to visualize and quantify the membrane fouling layers. ABSTRACT Membrane technology has garnered considerable attention for applications in wastewater treatment and resource recovery. Nevertheless, membrane fouling remains a major barrier, yet the lack of
Mengfei Wu, Xinhua Wang, Pin Zhao, Weilong Song, Ming Xie   +4 more
wiley   +1 more source