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Itay Presiado
Researcher at Tel Aviv University
Publications - 30
Citations - 584
Itay Presiado is an academic researcher from Tel Aviv University. The author has contributed to research in topics: Proton & Ice Ih. The author has an hindex of 16, co-authored 30 publications receiving 545 citations.
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Comparative study of the photoprotolytic reactions of D-luciferin and oxyluciferin.
Yuval Erez,Itay Presiado,Rinat Gepshtein,Luís Pinto da Silva,Joaquim C.G. Esteves da Silva,Dan Huppert +5 more
TL;DR: The photoprotolytic reaction of oxyluciferin, the active bioluminescence chromophore of the firefly's luciferase-catalyzed reaction, is found to be a photoacid with pK(a)* value of ∼0.5, whereas the excited-state proton transfer (ESPT) rate coefficient is 2.2 × 10(10) s(-1), which is somewhat slower than that of D-lucifer in
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Temperature dependence of the fluorescence properties of curcumin.
TL;DR: A model in which the excited-state proton transfer breaks the planar hexagonal structure of the keto-enol center of the molecule enhances the nonradiative process driven by the twist angle between the two phenol moieties is proposed.
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Excited-state proton transfer in N-methyl-6-hydroxyquinolinium salts: solvent and temperature effects
Elizabeth-Ann Gould,Alexander V. Popov,Laren M. Tolbert,Itay Presiado,Yuval Erez,Dan Huppert,Kyril M. Solntsev +6 more
TL;DR: The excited-state proton transfer (ESPT) reaction of the "super"photoacid N-methyl-6-hydroxyquinolinium (MHQ) was studied using both fluorescence upconversion and time-correlated single photon counting techniques and a full set of kinetic and thermodynamic parameters describing the ESPT was obtained.
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Ultrafast Excited-State Intermolecular Proton Transfer of Cyanine Fluorochrome Dyes
TL;DR: Steady-state and time-resolved emission spectroscopy techniques were employed to study the excited-state proton transfer to water and D(2)O from QCy7, a recently synthesized near-infrared (NIR)-emissive dye with a fluorescence band maximum at 700 nm.
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Fast Proton Hopping Detection in Ice Ih by Quasi-Elastic Neutron Scattering
TL;DR: In this article, quasi-elastic neutron scattering was employed on samples of HCl-doped polycrystalline ice, and the analysis of the scattering signal provided the excess proton hopping time, τhop, in the temperature range of 140-195 K.