Results 181 to 190 of about 559,293 (271)

Controlling Selectivity at the First Hydrogenation Level: Synthesis of 3‐Hydroxyisoindolines by Heterogeneously Silver‐Catalyzed Monohydrogenation of Phthalimides

open access: yesAdvanced Science, EarlyView.
3‐Hydroxylactams are obtained from phthalimides through a heterogeneous catalyzed chemoselective hydrogenation, able to stop the process at the first hydrogenation level. By using a rationally designed [Ag/Al2O3] recyclable solid nanocatalyst, a wide range of cyclic hemiamidals are accesed through a full atom‐economical reaction that preserves (hetero ...
Carles Lluna‐Galán   +2 more
wiley   +1 more source

Tecnología: La educación virtual y su aporte al desarrollo humano.

open access: diamond, 2019
Javier Enrique Martínez Ruiz   +2 more
openalex   +2 more sources

Ultrafast Nonlinear Dynamics of Indium Tin Oxide Nanocrystals Probed via Fieldoscopy

open access: yesAdvanced Science, EarlyView.
The ultrafast nonlinear dynamics of indium tin oxide nanocrystals excited with 1 MHz, 10 fs pulses, at their localized surface plasmon frequency, and near their epsilon‐near‐zero wavelength is probed via fieldoscopy. The study demonstrates fluence‐dependent switching behavior, advancing the understanding of high‐speed optical modulation in plasmonic ...
Andreas Herbst   +10 more
wiley   +1 more source

Micro‐Organ Chip Deciphers Tumor‐Derived G‐CSF as Remote Commander of Lung Pre‐Metastatic Niche via VEGFA‐KDR Cascade

open access: yesAdvanced Science, EarlyView.
Breast cancer reprograms the lung into a receptive pre‐metastatic niche via a novel G‐CSF–VEGFA–KDR signaling axis. Using a micro‐organ chip that enables contact‐independent coculture, this study uncovers how tumor‐secreted G‐CSF activates lung capillary KDR to drive angiogenesis and prime the soil for metastasis—without direct tumor contact.
Jingxin Zhang   +12 more
wiley   +1 more source

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