Results 211 to 220 of about 226,366 (293)

Wrinkled Strain‐Enriched High‐Entropy Metallene Enables Cross‐Site Tandem Nitrate‐to‐Ammonia

Angewandte Chemie, EarlyView.
A wrinkled 2D PdFeCoNiCuIn high‐entropy metallene overcomes the low atom utilization of high‐entropy alloys. Indium‐induced strain and p‐d hybridization enable a cross‐site tandem pathway for nitrate reduction to ammonia. It achieves 99.3% Faradaic efficiency and an NH3 yield rate of 4.55 mmol h−1 mgcat−1.
Tianfang Yang, Yang Liu, Menghao Kong, Shilong Li, Shizhe Liu, Guanjie He, Shuyan Gao   +6 more
wiley   +1 more source

Using Geochemistry, Stable Isotopes and Statistical Tools to Estimate the Sources and Transformation of Nitrate in Groundwater in Jinan Spring Catchment, China. [PDF]

Toxics
Wang K, Fan M, Wu Z, Zhang X, Wang H, Chen X, Wang M.   +6 more
europepmc   +1 more source

Spatial Detection of Microsphere Polystyrene Plastics and Molecular Remodeling within a Full‐Body Mouse with MALDI Trapped Ion Mobility Mass Spectrometry Imaging

Angewandte Chemie, EarlyView.
Orally administered polystyrene microplastics accumulate in murine tissues and are detected using MALDI‐MSI with TIMS. Lipid profiling reveals decreases in hexosylceramides, sphingomyelins, and ether‐linked phospholipids, indicating altered metabolism.
Karina A. Vargas, Amy L. Parkhurst, Ming‐Fo Hsu, Christopher Hou, Fawaz G. Haj, Elizabeth K. Neumann   +5 more
wiley   +1 more source

The return of raptors to Scotland's skies: Investigating the diets of reintroduced red kites and white-tailed eagles using stable isotopes. [PDF]

PLoS One
Waterman J, Black S, Sykes N, Kitchener AC, Mills WF, Fellowes MDE.   +5 more
europepmc   +1 more source

π‐Radical Cascades to Peri‐Fused Triangulene Dimers

Angewandte Chemie, EarlyView.
We demonstrate the potential of open‐shell molecular graphene fragments as synthons for constructing graphene nanostructures via π‐radical cascades. By identifying monoradical intermediates as key selectivity‐determining species and tuning steric effects in a triangulene precursor, we show that reactivity in a formally diradical system can be ...
Paula L. Widmer, Leoš Valenta, Maximilian Mayländer, Jules Hutter, Francis J. Carta, Simon Jurt, Olivier Blacque, Laurent Bigler, Sabine Richert, Tomáš Šolomek, Michal Juríček   +10 more
wiley   +1 more source

Trophic Ecology of the Pyjama Shark Poroderma africanum (Gmelin, 1789) Elucidated by Stable Isotopes. [PDF]

Animals (Basel)
Caracausi L, Da Ros Z, Premici A, Gennari E, Fanelli E.   +4 more
europepmc   +1 more source

Room‐Temperature Gas‐Phase CO2‐to‐C3 Coupling by a 4f‐Aromatic Cluster

Angewandte Chemie, EarlyView.
We engineered a 4f metalla aromatic cluster, PrB2C2−, that enables efficient sequential C−C coupling with CO2 at room temperature, yielding a linear C3 backbone. This system provides a complete theoretical catalytic cycle and establishes a new design principle for lanthanide mediated CO2 activation.
Feng‐Xiang Zhang, Xiao‐Wang Li, Ning‐Zheng Li, Sheng‐Gui He, Yu‐Chen Zhang, Li‐Li Xing, Donald G. Truhlar, Jia‐Bi Ma   +7 more
wiley   +1 more source

Three centuries of biogeochemical change in a temperate embayment as revealed by sediment core stable isotopes, radiometric dating, and historical ecology. [PDF]

Mar Ecol Prog Ser
Balint SJ, Schwartz M, Gray A, Cranston T, Fulweiler RW, Ederington-Hagy M, McKinney R, Oczkowski A.   +7 more
europepmc   +1 more source

A Revised Model for Muscarine Biosynthesis Involving Lysine Trimethylation

Angewandte Chemie, EarlyView.
The fatal mushroom toxin l‐(+)‐muscarine is one of the most prominent natural products. We elucidated its biosynthetic origin in the sweating mushroom Collybia rivulosa based on incorporation of stable isotope‐labeled compounds and extensive mass spectrometric analyses.
Sebastian Dörner, Kai Rogge, Felix Trottmann, Christian Hertweck, Dirk Hoffmeister   +4 more
wiley   +1 more source

The Cat's Whiskers: Stable Isotopes Reveal Individual Specialisation of Adaptable Caracals (<i>Caracal caracal</i>) Foraging in an Urbanising Landscape. [PDF]

Ecol Evol
Leighton GRM, Brooke AR, Froneman PW, Serieys LEK, Bishop JM.   +4 more
europepmc   +1 more source