The photoactivated adenylyl cyclase from the spirochete bacterium Leptonema illini, abbreviated LiPAC, was synthesized and characterized by absorption and fluorescence spectroscopic methods. LiPAC consists of a BLUF (Blue Light sensor Using Flavin) domain and an adenylyl cyclase homology domain (CHD). Photo-excitation of fully oxidized flavin Flox in LiPAC resulted in a typical primary (dark-ad...

The grafting of poly(hydroxyethylmethacrylate) on polymeric porous membranes via atom transfer radical polymerization (ATRP) and subsequent modification with a photo-responsive spiropyran derivative is described. This method leads to photo-responsive membranes with desirable properties such as light-controlled permeability changes, exceptional photo-stability and repeatability of the photo-resp...

A new strategy in photosynthetic hydrogen (photo-H(2)) production from green algae was developed based on theory and successfully demonstrated. The new strategy applied a spectral-selective photosystem I (PSI) activating/photosystem II (PSII) deactivating radiation (or PSI light) that would drive a steady flow of electrons in the electron transport chain for delivery to hydrogenase for photo-H(...

A photo/thermal-switchable supramolecular nanoparticles assembly has been constructed based on an inclusion complex between anionic pillar[5]arene 2C-WP5A and azobenzene derivative Azo-py-OMe (G). The novel anionic pillar[5]arene-based host-guest inclusion complexation was investigated by the 1H NMR titration, 2D ROESY and isothermal titration microcalorimetry (ITC) showing high association con...

An x-ray streak camera system uses a laser triggered photo-conductive switch to synchronize the high voltage ramp applied to its sweep plates to the photo-excitation of a sample. This technique allows the jitter between successive sweeps to be kept below 100 fs compared to over 1 ps using classical methods. By accumulating a stable pulsed x-ray signal over many sweeps, a very high dynamic range...

The supramolecular design of photochromic molecules has produced various smart molecular assemblies that can switch their structures and/or functions in response to light stimuli. However, most of these assemblies require large structural changes of the photochromic molecules for an efficient conversion of assembled states, which often suppresses the photoreactivity within the self-assemblies. ...

Diamond Junction Field Effect Transistor Ultrawide bandgap semiconductors offer a new playground for researchers thanks to their huge energy scale. In article 2100542, Julien Pernot and co-workers create diamond junction field effect transistor from non-volatile photo-switch by taking advantage of the deep ionisation nitrogen donor in n-type region. The state can only be switched under illumina...

Protein capped metal nanoclusters gained a lot of recent attention due to their wide range applications. However copper are difficult synthesize tendency undergo oxidation. Here we successfully synthesized stable, biocompatible lysozyme protected Cu nanocluster (Lys-Cu NC) using an optimized green one-pot protocol under aqueous condition at room temperature. The showed strong photoluminescence ...