scholarly journals Nature of Fast Relaxation Processes and Spectroscopy of a Membrane-Active Peptide Modified with Fluorescent Amino Acid Exhibiting Excited State Intramolecular Proton Transfer and Efficient Stimulated Emission

ACS Omega ◽  
2021 ◽  
Author(s):  
Yevgeniy O. Shaydyuk ◽  
Nataliia V. Bashmakova ◽  
Andriy M. Dmytruk ◽  
Olexiy D. Kachkovsky ◽  
Serhii Koniev ◽  
...  
Keyword(s):  
Excited State ◽  
Amino Acid ◽  
Proton Transfer ◽  
Intramolecular Proton Transfer ◽  
Stimulated Emission ◽  
Relaxation Processes ◽  
Active Peptide ◽  
Fast Relaxation ◽  
Fluorescent Amino Acid

Fluorescent Amino Acid Undergoing Excited State Intramolecular Proton Transfer for Site-Specific Probing and Imaging of Peptide Interactions

2014 ◽  
Vol 119 (6) ◽  
pp. 2585-2595 ◽  
Author(s):  
Marianna Sholokh ◽  
Oleksandr M. Zamotaiev ◽  
Ranjan Das ◽  
Viktoriia Y. Postupalenko ◽  
Ludovic Richert ◽  
...  
Keyword(s):  
Excited State ◽  
Amino Acid ◽  
Proton Transfer ◽  
Intramolecular Proton Transfer ◽  
Site Specific ◽  
Peptide Interactions ◽  
Fluorescent Amino Acid

scholarly journals Natural Born Laser Dyes: Excited-State Intramolecular Proton Transfer (ESIPT) Emitters and Their Use in Random Lasing Studies

Nanomaterials ◽  
2019 ◽  
Vol 9 (8) ◽  
pp. 1093 ◽  
Author(s):  
Julien Massue ◽  
Thibault Pariat ◽  
Pauline M. Vérité ◽  
Denis Jacquemin ◽  
Martyna Durko ◽  
...  
Keyword(s):  
Excited State ◽  
Proton Transfer ◽  
Photophysical Properties ◽  
Intramolecular Proton Transfer ◽  
Stimulated Emission ◽  
Laser Dyes ◽  
Random Lasing ◽  
Level Laser ◽  
Laser Systems ◽  
Optical Behavior

A series of five excited-state intramolecular proton transfer (ESIPT) emitters based on a 2-(2′-hydroxyphenyl) benzoxazole (HBO) scaffold, functionalized with a mono-or bis-(trialkylsilyl) acetylene extended spacer are presented. Investigation of their photophysical properties in solution and in the solid-state in different matrix, along with ab initio calculations gave useful insights into their optical behavior. Random lasing studies were conducted on a series of PMMA doped thin films, showing the presence of stimulated emission above the threshold of pumping energy density (ρth ≈ 0.5–2.6 mJ cm−2). In this work, the similarity of four level laser systems is discussed in light of the ESIPT photocycle.

Excited-State Intramolecular Proton Transfer and Stimulated Emission from Phototautomerizable Polyquinoline Film

2002 ◽  
Vol 35 (15) ◽  
pp. 6064-6066 ◽  
Author(s):  
Sehoon Kim ◽  
Dong Wook Chang ◽  
Soo Young Park ◽  
Sae Chae Jeoung ◽  
Dongho Kim
Keyword(s):  
Excited State ◽  
Proton Transfer ◽  
Intramolecular Proton Transfer ◽  
Stimulated Emission

scholarly journals Time-resolved photoelectron spectroscopy of organic molecules in aqueous solutions

2019 ◽  
Vol 205 ◽  
pp. 09027
Author(s):  
Johan Hummert ◽  
Geert Reitsma ◽  
Nicola Mayer ◽  
Evgenii Ikonnikov ◽  
Martin Eckstein ◽  
...  
Keyword(s):  
Excited State ◽  
Proton Transfer ◽  
Aqueous Solutions ◽  
Photoelectron Spectroscopy ◽  
Organic Molecules ◽  
Electronic Excitation ◽  
Intramolecular Proton Transfer ◽  
Relaxation Processes ◽  
Femtosecond Pulses ◽  
Time Resolved

We use time-resolved photoelectron spectroscopy with wavelength-selected XUV femtosecond pulses to study photoinduced dynamics of organic molecules in solutions at millimolar concentrations. Upon electronic excitation we observe relaxation processes, such as excited state intramolecular proton transfer and trans-cis isomerization.

scholarly journals An enhanced sampling QM/AMOEBA approach: The case of the excited state intramolecular proton transfer in solvated 3-hydroxyflavone

2021 ◽  
Vol 154 (18) ◽  
pp. 184107
Author(s):  
Michele Nottoli ◽  
Mattia Bondanza ◽  
Filippo Lipparini ◽  
Benedetta Mennucci
Keyword(s):  
Excited State ◽  
Proton Transfer ◽  
Intramolecular Proton Transfer ◽  
Enhanced Sampling

scholarly journals The development of aryl-substituted 2-phenylimidazo[1,2-a]pyridines (PIP) with various colors of excited-state intramolecular proton transfer (ESIPT) luminescence in the solid state

2016 ◽  
Vol 4 (16) ◽  
pp. 3599-3606 ◽  
Author(s):  
Toshiki Mutai ◽  
Tatsuya Ohkawa ◽  
Hideaki Shono ◽  
Koji Araki
Keyword(s):  
Excited State ◽  
Solid State ◽  
Proton Transfer ◽  
Intramolecular Proton Transfer ◽  
Aryl Group ◽  
Red Emission ◽  
Wide Range

The color of ESIPT luminescence of HPIP is tuned in a wide range by the introduction of aryl group(s), and thus a series of PIPs showing blue to red emission is realized.

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