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A blue-emitting phosphor without thermal quenching is reported. The emission losses at high temperatures are compensated by a counter mechanism, originating in energy transfer between electron–hole pairs and thermally activated defect levels.
Increased cellular expression of RAB5A, an important regulator of endocytic processes, brings epithelial cells from a jammed state to coordinated motion, and can facilitate wound closure, gastrulation and migration in constrained environments.
Coherent diffractive imaging during hydriding of palladium nanocrystals reveals that phase nucleation begins after dislocation nucleation at the phase boundary for large particles. The hydrogen-rich phase resembles a spherical cap.
Uniform, hierarchical 2D nanostructures with controlled shapes can be prepared from homopolymers with charged end-groups using a crystallization-driven assembly process.
