Results 91 to 100 of about 11,258 (258)

Bismuth Chalcogenide‐Based Photocatalysts for Nitrogen Reduction: Recent Progress and Prospects

Chemistry – A European Journal, EarlyView.
Bismuth chalcogenides emerge as promising visible‐light photocatalysts for sustainable ammonia synthesis, driven by tunable electronic structures and strong N2 activation. Recent advances reveal how defects, doping and heterojunction design synergistically enhance charge separation and reactivity. Key challenges and future directions highlight pathways
Mukesh K. Verma, Muhammad D. Bala, Phindile B. Khoza, Tshephiso R. Papo, Mzamo L. Shozi   +4 more
wiley   +1 more source

Bis(2‐Adamantyl)Magnesium: Synthesis, Structure, and Applications of a Versatile and Shelf‐Stable 2‐Adamantyl Anion Equivalent

Chemistry – A European Journal, EarlyView.
At last, the long‐sought bis(2‐adamantyl)magnesium reagent has been prepared in high yield as a stable tetrahydrofuran/dioxane adduct and fully characterized by x‐ray crystallography. This potent nucleophile outperforms the corresponding Grignard in transmetallation and carbonyl addition reactions, opening new avenues in adamantyl organometallic and ...
Matthew V. DaCosta, Fioralba Taullaj, Jack H. Lin, Ulrich Fekl   +3 more
wiley   +1 more source

Elemental and Isotopic Yields from T Coronae Borealis: Predictions and Uncertainties

The Astrophysical Journal
T Coronae Borealis (T CrB) is a symbiotic recurrent nova system expected to undergo its next outburst within the next 2 yr. Recent hydrodynamic simulations have predicted the nucleosynthetic yields for both carbon–oxygen (CO) and oxygen–neon (ONe) white ...
Emma Wallace, Christian Iliadis, Sumner Starrfield   +2 more
doaj   +1 more source

Cellular Membrane‐Targeted Europium(III) Probe for Selective and Time‐Resolved Detection of Peroxynitrite

Chemistry – A European Journal, EarlyView.
We report a cellular membrane‐targeted europium(III) probe, Eu.Chol, that enables selective, time‐resolved detection of peroxynitrite (ONOO−) at the cell membrane interface. Eu.Chol demonstrates efficient incorporation into liposomes and Jurkat cells, with minimal response to H2O2, establishing a modular platform for subcellular ONOO− sensing ...
Jamie Webb, Rebecca Tiffany, Karolis Norvaisa, Hennie Valkenier, Lea Miebach, Sander Bekeschus, Stephen J. Butler   +6 more
wiley   +1 more source

Spatial Distribution and Health Risk Assessment of Natural Radionuclides from Water Samples of Lake Kyoga, Namasale Uganda

Air, Soil and Water Research
The occurrence of naturally occurring radionuclides in freshwater systems represents an important environmental and public health concern due to potential radiation exposure through water consumption.
Afam Uzorka, Mundu Muhamad Mustafa, David Kibirige, Kagezi Kalabuki, Saphina Biira, Oluwole Akiyode, Musa Bawa, Living Ounyesiga, Nasasira Jossy   +8 more
doaj   +1 more source

Detection of Testosterone Esters in Urine: Evidence of Trace‐Level Detectability in Doping Control Samples

Drug Testing and Analysis, EarlyView.
An ultrasensitive LC‐MS/MS method for detecting testosterone esters (T‐esters) in urine at sub–pg/mL levels is presented. This approach, employing Girard P derivatization, provides the first evidence of T‐esters' trace‐level detectability in human urine.
Daniel Pecher, Guro Forsdahl, Biljana Stojanovic, Günter Gmeiner   +3 more
wiley   +1 more source

Micronutrient Status in Children Suffering From Anorexia Nervosa: A Cohort of 349 Patients in a Referral Center for Eating Disorders

International Journal of Eating Disorders, EarlyView.
ABSTRACT Objective Anorexia nervosa (AN) is a serious illness in which more than half of all deaths are due to malnutrition. Critically low energy and protein intake are known causes of massive weight loss, whereas micronutrient deficiencies due to a low‐calorie food pattern remain poorly characterized in children with AN. Micronutrient deficiencies in
Zenaida Iordan, Diane Morfin, Marion Bernetiere, Marie Fauchet, Noël Peretti, Bérénice Segrestin, Pierre Poinsot   +6 more
wiley   +1 more source

Support‐Driven Hydrogen Migration Enhances Ammonia Decomposition in Direct Ammonia Protonic Ceramic Fuel Cells

ENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
Enhanced hydrogen species migration enabled by FN/BZY catalyst mitigates intermediate accumulation and improves DA‐PCFC performance during ammonia decomposition. Ammonia, with its high hydrogen density and carbon‐free nature, serves as ideal fuel for direct ammonia protonic ceramic fuel cells (DA‐PCFCs).
Meijuan Fei, Shuai Wang, Zhaohui Cai, Dongliang Liu, Cheng Huang, Xixi Wang, Jie Miao, Huangang Shi, Chuan Zhou, Wei Zhou   +9 more
wiley   +1 more source

Fluorinated and B‐Vinylated Tris(pyridyl)borate in Copper(I) Coordination Chemistry

European Journal of Inorganic Chemistry, EarlyView.
Coordinatively flexible tris(pyridyl)borate stabilizes copper coordination complexes, including those with ethylene and carbon monoxide. Fluorinated tris(pyridyl)borate with a vinyl substituent on boron was synthesized and comprehensively characterized, expanding the diversity and functional versatility of the poly(pyridyl)borate ligand family.
Deepika V. Karade, Mukundam Vanga, Xiuxiu Sun, H. V. Rasika Dias   +3 more
wiley   +1 more source

Enhancing g‐C3N4 Photocatalytic Activity: K‐Doping and CuO Heterojunction for Selective CO2 Conversion to CH4

Electron, EarlyView.
The CuO/K‐g‐C3N4 heterostructure photocatalyst achieves selective CO2 reduction to CH4 (93.03% selectivity) under visible‐light irradiation. K‐doping enhances crystallinity, whereas CuO forms a p‐n heterojunction to promote charge separation and electron transfer.
Ahmed Ismail, Sher Ali, Ahmad Iqbal, Muhammad Zahid, Syed ul Hasnain Bakhtiar, Jiabao Yi, Huabin Zhang, Sharafat Ali, Liang Qiao   +8 more
wiley   +1 more source