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https://www.selleckchem.com/products/CP-690550.html Both in vitro and in vivo evaluations show that the presented nanotheranostic systems bearing good photostability and appreciable biosecurity perform well in fluorescence imaging-guided photodynamic cancer therapy. This study thus not only extends the application scopes of AIE nanomaterials but also offers useful insights into constructing advanced cancer phototheranostics.The SpyCatcher/SpyTag protein conjugation system has recently exploded in popularity due to its fast kinetics and high yield under biologically favorable conditions in both in vitro and intracellular settings. The utility of this system could be expanded by introducing the ability to spatially and temporally control the conjugation event. Taking inspiration from photoreceptor proteins in nature, we designed a method to integrate light dependency into the protein conjugation reaction. The light-oxygen-voltage domain 2 of Avena sativa (AsLOV2) undergoes a dramatic conformational change in its c-terminal Jα-helix in response to blue light. By inserting SpyTag into the different locations of the Jα-helix, we created a blue light inducible SpyTag system (BLISS). In this design, the SpyTag is blocked from reacting with the SpyCatcher in the dark, but upon irradiation with blue light, the Jα-helix of the AsLOV2 undocks to expose the SpyTag. We tested several insertion sites and characterized the kinetics. We found three variants with dynamic ranges over 15, which were active within different concentration ranges. These could be tuned using SpyCatcher variants with different reaction kinetics. Further, the reaction could be instantaneously quenched by removing light. We demonstrated the spatial aspect of this light control mechanism through photopatterning of two fluorescent proteins. This system offers opportunities for many other biofabrication and optogenetics applications.Bimetallic Pt-Pd catalysts supported on ceria have been prepared by mechanochem

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