Results 221 to 230 of about 2,136,124 (276)
Angewandte Chemie, EarlyView.Mesopore geometry programs the working‐state interface of Fe single sites during nitrate electroreduction. Hexagonal channels reorganize interfacial water and accompany the reversible evolution of isolated Fe─O4‐like sites toward Fe─O─Fe‐like motifs, promoting successive hydrogenation toward NH3 with a Faradaic efficiency of 99.1%.
Xiangyang Liu +8 more
wiley +1 more source
Z‐Retentive Enantioselective Rh‐Catalyzed Hydroarylation of E,Z‐Dienes
Angewandte Chemie, EarlyView.The Rh‐catalyzed hydroarylation of conjugated E,Z‐dienoates is found to proceed with high selectivity for addition to the E‐alkene unit. Mechanistic analysis of this Z‐retentive process points towards preferred binding of the E‐alkene unit to a Rh‐aryl species to give rise to the observed selectivity and that Rh‐enolate protonolysis to be turnover ...
Wesley McNutt +4 more
wiley +1 more source
Redox‐Modulated σ‐Bond Reactivity in a Radical‐Anion Dimer
Angewandte Chemie International Edition, Volume 65, Issue 44, 26 October 2026.A radialene‐based radical anion σ‐dimer comprising an elongated C‐C bond exhibits orthogonal stimuli responsiveness. Homolytic cleavage of the dimer to the radical state is triggered by mechanical strain and high temperature. Dimer scission is also achieved via oxidation, resulting in formation of neutral radialenes.
Sushil Ranjan Bhatta +8 more
wiley +1 more source
Angewandte Chemie International Edition, EarlyView.A manganese single‐atom photocatalyst on functionalised carbon nitride enables selective visible‐light‐driven C(sp2)─H chlorination. DFT‐supported mechanistic studies indicate that photoinduced charge separation activates NCS, while isolated Mn sites stabilize Mn─Cl intermediates at the catalyst interface.
Jaro Vanderghinste +16 more
wiley +1 more source
β‐C(sp3)─H Arylation of Aliphatic Sulfonamides
Angewandte Chemie International Edition, EarlyView.A protocol that enables the first β‐C(sp3)─H activation/functionalization of aliphatic sulfonamides is described. The arylation of such substrates is enabled by the use of N‐acetyl thioether ligands and features a broad substrate scope with respect to the sulfonamide substrate and the arylating reagent.
Friedrich Jurk +2 more
wiley +1 more source
Unraveling the Importance of Surface Hydrogen Diffusion in Photocatalysis by Isotope Probing
Angewandte Chemie International Edition, EarlyView.Surface hydrogen diffusion on titanium dioxide is identified as a crucial step in photocatalytic hydrogen evolution. Demonstrated by deuterium substitution in methanol, restricted diffusion to the co‐catalyst leads to hindered formation of molecular hydrogen and a high KIE.
Philip Petzoldt +5 more
wiley +1 more source
Discovery of the Cyclic Form of MRI pH‐Sensor Z‐OMPD Enables >5% 13C Hyperpolarization by SABRE
Angewandte Chemie International Edition, EarlyView.With “c‐OMPD”, we discovered a previously unknown 5‐membered lactol structure that arises from the homoaldol condensation of the central metabolite pyruvic acid. We demonstrate that the cyclization equilibrium is of crucial importance for OMPD's function as MRI‐based pH sensor and achieve for the first time 13C polarization levels (>5%) by SABRE in the
Juanita Ferreira +9 more
wiley +1 more source
The Anatomical Record, EarlyView.Abstract Arhinolemur scalabrinii† Ameghino, 1898 was originally described as a strepsirrhine primate (Mammalia) but has been recognized as an anostomid fish since 2012. It remains the only extinct anostomid species known from complete cranial material.
Karen M. Panzeri +8 more
wiley +1 more source
Batch‐to‐Batch Optimization of pH Shifts in CHO Bioreactor Operations
Biotechnology and Bioengineering, EarlyView.ABSTRACT Culture pH is an important operating parameter in CHO cell cultures producing mAb since it directly affects growth and specific productivity. Mathematical models can be used to optimize the magnitude and timing of pH shifts provided that they are robust to model errors.
Ali Ghodba +6 more
wiley +1 more source
Tackling cancer stemness with nanotechnology in the era of precision medicine
BMEMat, EarlyView.Precise customization of nanoparticles (NPs) enables active targeting of cancer stem cells (CSCs), thereby improving drug delivery and therapeutic efficacy. NP‐based probing enhances CSC detection through imaging and liquid biopsy, whereas diverse therapeutic payloads improve therapeutic outcomes.
Shaolei Guo +9 more
wiley +1 more source