Stimuli-responsive aggregation-induced emission (AIE) materials with regulated color and fluorescence have shown promising applications in smart optical systems, while most of them are only by a single stimulus. Herein, cyanostilbene-based fluorophore (Z-BDPA) AIE enhancement properties is elaborately designed, which exhibits multiple regulable owing to its various photochemical reactions rever...

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Light quality is a common environmental factor which influences the metabolism of biochemical substances in algae and leads to response algal growth development. <i>Pyropia yezoensis</i> kind economic macroalgae that naturally grows intertidal zone where light environment changes dramatically. In present study, <i>P. thalli were treated under white (control) monochromatic ligh...

the reaction of hydrogen peroxide and  pheny -9-acridinecarboxylate in the presence of rhodamin b as a fluorophore leads to the emission of either bright blue light  or bright red light, depending on the structure of fluorescer and reaction conditions. the light emitter responsible for the chemi luminescence (cl) reaction is acridone and that the blue light produced with out the fluorescers is ...

The propagation of light in photonic materials can be modified to increase the probability of photon absorption. Here we report the synthesis of composite materials comprising a photochemically inert photonic macroporous ZrO2 support decorated with photocatalytically active CdS nanoparticles. The relative energies of valence and conduction bands restrict photon absorption and catalysis to the C...

Cyanobacteria are oxygen-evolving photosynthetic organisms that harvest sunlight and convert excitation energy into chemical energy. Most of the light is absorbed by large light harvesting complexes called phycobilisomes (PBs). In high-light conditions, cyanobacteria switch on a photoprotective mechanism called non-photochemical quenching (NPQ): During this process, absorption of blue-green lig...

Azide complexes of Ga(III) have attracted con­ siderable attention in recent years owing to their importance as precursors for the formation of GaN [1-4] . Gallium nitride is a rather stable III-V semi­ conductor with interesting optical properties which can be utilized for optoelectronic applications in­ cluding blue light-emitting diodes and lasers [5 7]. The thermal decomposition of Ga(N3)3 ...

The photochemical reaction dynamics of a light-oxygen-voltage (LOV) domain from the blue light sensor protein, FKF1 (flavin-binding Kelch repeat F-box) was studied by means of the pulsed laser-induced transient grating method. The observed absorption spectral changes upon photoexcitation were similar to the spectral changes observed for typical LOV domain proteins (e.g., phototropins). The addu...

A synthetically facile and earth abundant Cu(I) metal-to-ligand charge transfer sensitizer was successfully incorporated into two distinct photochemical upconversion schemes, affording red-to-green and orange-to-blue wavelength conversions.