Results 31 to 40 of about 31,710 (279)
Molecules, 2021 Nonlinear optical techniques as two-photon absorption (TPA) have raised relevant interest within the last years due to the capability to excite chromophores with photons of wavelength equal to only half of the corresponding one-photon absorption energy ...
Marco Marazzi +5 more
doaj +1 more source
Tyrosine 263 in Cyanobacterial Phytochrome Cph1 Optimizes Photochemistry at the prelumi-R→lumi-R Step [PDF]
, 2014 We report a low-temperature fluorescence spectroscopy study of the PAS-GAF-PHY sensory module of Cph1 phytochrome, its Y263F mutant (both with known 3D structures) as well as Y263H and Y263S to connect their photochemical parameters with intramolecular ...
Essen, Lars-Oliver +7 more
core +1 more source
Flipping the Switch: Fast Photoisomerization in a Confined Environment.
Journal of the American Chemical Society, 2018 Stimuli-responsive materials are vital for addressing emerging demands in the advanced technology sector as well as current industrial challenges.
D.E Williams +8 more
semanticscholar +1 more source
Structural Evidence of Photoisomerization Pathways in Fluorescent Proteins.
Journal of the American Chemical Society, 2019 Double-bond photoisomerization in molecules such as the green fluorescent protein (GFP) chromophore can occur either via a volume-demanding one-bond-flip pathway or via a volume-conserving hula-twist pathway.
Jeffrey Chang, M. Romei, S. Boxer
semanticscholar +1 more source
Intraannular photoreactions in pseudo-geminally substituted [2.2]paracyclophanes
Beilstein Journal of Organic Chemistry, 2011 The photoisomerization of the pseudo-geminal tetraene 11 furnishes the cyclooctadiene derivatives 13 and 15 with a completely new type of molecular bridge for a [2.2]paracyclophane which promise many interesting novel applications; the same is true for ...
Henning Hopf +2 more
doaj +1 more source
Regulation of the Switchable Luminescence of Tridentate Platinum(II) Complexes by Photoisomerization
Frontiers in Chemistry, 2021 Organoplatinum (II) complexes are promising candidates for the construction of smart supramolecular materials due to their unique flat structures. This accompanied by intriguing luminescent properties, prompts the molecules to aggregate after external ...
Yongguang Li +4 more
doaj +1 more source
Stacking-induced fluorescence increase reveals allosteric interactions through DNA [PDF]
, 2018 From gene expression to nanotechnology, understanding and controlling DNA requires a detailed knowledge of its higher order structure and dynamics. Here we take advantage of the environment-sensitive photoisomerization of cyanine dyes to probe local and ...
Lopez, Sergio G. +4 more
core +1 more source
Scientific Reports, 2017 Photoswitchable molecules are able to isomerize between two metastable forms through light stimuli. Originally being studied by photochemists, this type of molecule has now found a wide range of applications within physics, chemistry and biology.
Kati Stranius, Karl Börjesson
semanticscholar +1 more source
Molecules, 2018 Chloro- and dichloro-methylsulfonyl nitrenes, CH2ClS(O)2N and CHCl2S(O)2N, have been generated from UV laser photolysis (193 and 266 nm) of the corresponding sulfonyl azides CH2ClS(O)2N3 and CHCl2S(O)2N3, respectively.
Yang Yang +4 more
doaj +1 more source
Monitoring the photochemistry of a formazan over 15 orders of magnitude in time
Frontiers in Chemistry, 2022 2,3,5-triphenyltetrazolium chloride (TTC) may convert into phenyl-benzo[c]tetrazolocinnolium chloride (PTC) and 1,3,5-triphenylformazan (TPF) under irradiation with light.
Svenja Wortmann +2 more
doaj +1 more source