Results 261 to 270 of about 2,706,843 (321)

The Curious Concept That Almost Nobody Seemed to Care About at First: Virtual Particles in the Post‐War Period**

open access: yesBerichte zur Wissenschaftsgeschichte, EarlyView.
Abstract Short‐lived, unobservable, and not subject to the usual rules of conservation of energy and momentum, virtual particles—an integral part of the conceptual framework of quantum field theory (QFT)—exhibit a number of curious characteristics which, in recent decades, have in part fueled important discussions about their ontological status ...
Jean‐Philippe Martinez
wiley   +1 more source

Binuclear lanthanide complexes as magnetic resonance and optical imaging probes for redox sensing

open access: yesChemistry – A European Journal, Accepted Article.
We report a family of lanthanide(III) complexes that act as redox probes via both magnetic resonance and luminescence outputs. The ligands are functionalized with nitro, azobenzene and azide groups which are reduced to a common aniline product, and each responds to both chemical and biocatalytic reductive conditions at different cathodic onset ...
Charlie H. Simms   +12 more
wiley   +1 more source

A Hidden Chemical Assembly Mechanism: Reconstruction‐by‐Reconstruction Cycle Growth in HKUST‐1 MOF Layer Synthesis

open access: yesChemPhysChem, EarlyView.
The metal‐organic framework HKUST‐1 grown in a step‐wise manner shows growth rates in clear disagreement with the usual layer‐by‐layer (LbL) model. A nearly exact 4‐times higher rate compared to the simple growth model is found and a modified model involving lattice reconstruction is proposed.
T. Koehler   +3 more
wiley   +1 more source

Purifying the Air with Photocatalysis: Developing Bismuth Oxybromide/ Copper Phthalocyanine Composite Photocatalyst Filters with Enhanced Activity for NOx Removal

open access: yesChemPhotoChem, EarlyView.
Herein, we carried out an in‐depth study into the synthesis, optoelectronic characterisation, and charge carrier dynamics of the bismuth oxobromide/ copper phthalocyanine (BiOBr/CuPc) composite system for UV and visible light photocatalytic nitrogen oxide (NOx) removal on air purification filters.
Oyelusi Olaifa   +6 more
wiley   +1 more source

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