Results 181 to 190 of about 144,465 (296)

Spatially Encoded Polaritonic Ultra‐Strong Coupling in Gradient Metasurfaces with Epsilon‐Near‐Zero Modes

open access: yesAdvanced Materials, EarlyView.
Dielectric dual gradient metasurfaces supporting quasi‐bound‐states‐in‐the‐continuum are leveraged to spatially encode both the spectral and coupling parameter space and demonstrate ultra‐strong coupling to an epsilon‐near‐zero mode in an ultra‐thin SiO2 layer.The platform achieves exceptional mode overlap, reaching a normalized coupling strength of η =
Enrico Baù   +7 more
wiley   +1 more source

Force‐Induced Selective Carbon‐Carbon Bond Cleavage in Mechanoresponsive Topochemical Polymers

open access: yesAdvanced Materials, EarlyView.
A new class of mechanoresponsive polymers based on polybiidenedionediyl (PBIT) derivatives exhibits distinct color changes upon mechanical stimuli such as grinding, milling, and compression. The response arises from depolymerization and backbone conjugation changes.
Zitang Wei   +12 more
wiley   +1 more source

Precision Photochemistry: Every Photon Counts. [PDF]

open access: yesAngew Chem Int Ed Engl
Pashley-Johnson F   +11 more
europepmc   +1 more source

Bioorthogonal Photoactivation of 2‐Nitrobenzyl Caged Doxorubicin Anticancer Prodrugs on Gold Nanostars

open access: yesAdvanced Materials, EarlyView.
Bioorthogonal chemistry was applied to intracellularly photoactivate Doxorubicin (Dox) using gold nanostars (AuNSt) and near‐infrared (NIR) light. Two prodrugs were used: one photoactivatable, masked with 2‐nitrobenzyl carbamate (proDox1) and another photolabile, masked with 2‐nitrobenzyl diol (proDox2), which was attached to the AuNSt surface.
Juan José Esteve‐Moreno   +15 more
wiley   +1 more source

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