Results 161 to 170 of about 3,391,961 (209)

Kibble-Zurek mechanism and beyond in a holographic superfluid disk. [PDF]

open access: yesNat Commun
Xia CY   +3 more
europepmc   +1 more source

Cryogen‐Aided Chromatographic Purification of Millimole Quantities of Methane for Spectroscopic Clumped Isotope Analysis

open access: yesRapid Communications in Mass Spectrometry, Volume 40, Issue 18, 30 September 2026.
ABSTRACT Rationale Quantum cascade laser absorption spectroscopy (QCLAS) is a fast and reliable method for analyzing the bulk (𝛿13C‐CH4, 𝛿D‐CH4) and clumped isotopic (∆13CH3D and ∆12CH2D2) composition of methane. However, precise measurements of ∆12CH2D2 require 0.5 to 1.8 mmol of purified methane (equivalent to 15 to 40 mL at STP).
Nico Kueter   +6 more
wiley   +1 more source

Gross-Pitaevskii systems of fractional order with respect to multicomponent solitary wave dynamics. [PDF]

open access: yesSci Rep
Bilal M   +6 more
europepmc   +1 more source

A New Switchable Zr12 Oxocluster Based Large Pore Metal–Organic Framework Functionalized With Spin Crossover Complexes for Acetic Acid Colorimetric Sensing

open access: yesAngewandte Chemie, Volume 138, Issue 38, 14 September 2026.
We present here (1)⊂MIP‐216(Zr), a new hybrid material composed of an FeII spin crossover complex (1) loaded in the pores of a new hydrophobic metal–organic framework (MIP‐216(Zr), that presents a high affinity toward acetic acid and acts as a highly sensitive colorimetric sensor of acetic acid vapor due to a spin state switching of the encapsulated ...
Emmelyne Cuza   +8 more
wiley   +1 more source

Borylcyclopropanes: Synthetic Strategies and Applications

open access: yesAngewandte Chemie, Volume 138, Issue 37, 7 September 2026.
Borylcyclopropanes (cyclopropanes bearing a boron substituent) sit at the intersection of two privileged frameworks in synthesis. This review provides the first exhaustive survey of their chemistry, spanning metal–carbene, nucleophilic cyclization, radical, hydroboration, and C─H activation routes, and documenting applications in medicinal chemistry ...
Aiza A. Butt, Joseph M. Ready
wiley   +2 more sources

Infrared Irradiation‐Assisted Sonogashira Cross‐Coupling Reaction

open access: yesChemSusChem, Volume 19, Issue 17, 14 September 2026.
The Pd‐catalyzed Sonogashira cross‐coupling was developed under sustainable conditions using IR irradiation in water and a recyclable Pd/C catalyst. The protocol promotes efficient C(sp2)─C(sp) bond formation under mild conditions with low Pd loading (1 mol%), providing good to excellent yields for various aryl iodides and terminal alkynes.
Ambra M. Fiore   +4 more
wiley   +1 more source

Rapid Wintertime Formation of Phenolic Secondary Organic Aerosol from Brown Carbon Photochemistry. [PDF]

open access: yesEnviron Sci Technol
Heinlein LMD   +12 more
europepmc   +1 more source

Experimental and Computational Investigations of Surface Polaritons at Metal‐Oxide‐Semiconductor Interfaces

open access: yesNanophotonics, Volume 15, Issue 17, 11 September 2026.
STEM‐EELS and full‐wave FDTD reveal electron‐driven surface‐polariton modes at buried Au/oxide/Si interfaces with 10 nm SiO2 or Al2O3 spacers. Extinction is dominated by non‐radiative absorption, while oxide permittivity shifts the resonance and controls evanescent‐field penetration across the spacer into silicon.
Humaira Zafar   +6 more
wiley   +1 more source

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