Results 11 to 20 of about 1,203,198 (136)

Precisely Regulating 2.45 s Pure Blue Room-Temperature Phosphorescence via Supramolecular Coordination. [PDF]

open access: yesAdv Sci (Weinh)
Herein, a pure deep blue room‐temperature phosphorescence (415 nm) with lifetime up to 2.45 s is successfully achieved by a covalently crosslinking purely organic material based on boric acid (BA) and 3,5‐dicarboxyphenylboronic acid (BOP) through a simple dehydration reaction, which can be adjusted precisely by supramolecular coordination with ...
Wang J   +5 more
europepmc   +2 more sources

Photoactivation-Enabled Tunable Room-Temperature Phosphorescence and Thermally Activated Delayed Fluorescence in Crystalline Materials. [PDF]

open access: yesAdv Sci (Weinh)
This work is the first to demonstrate the regulation of photoactivated room‐temperature phosphorescence (RTP) and thermally activated delayed fluorescence (TADF) in crystalline materials without any pretreatment. Furthermore, we reveal the underlying mechanisms by uncovering the role of host‐guest energy level alignment, exciton lifetime, crystallinity,
Zhang L   +5 more
europepmc   +2 more sources

Development of a non-invasive method to detect pericellular spatial oxygen gradients using FLIM [PDF]

open access: yes, 2011
PhDExtracellular oxygen concentrations affect cellular metabolism and influence tissue function. Detection methods for these extracellular oxygen concentrations currently have poor spatial resolution and are frequently invasive.
Hosny, Neveen Amera
core   +4 more sources

Synthesis and charaterisation of phosphorescent copper (I) complexes for light emitting devices [PDF]

open access: yes, 2013
This thesis was submitted for the degree of Doctor of Philosophy and awarded by Brunel University.Over the last decade, many significant developments have been made to improve the active materials in a new generation of organic light emitting devices ...
Andrés-Tomé, María Inmaculada
core   +7 more sources

Tyrosine Quenching of Tryptophan Phosphorescence in Glyceraldehyde-3-Phosphate Dehydrogenase from Bacillus stearothermophilus [PDF]

open access: yes, 1998
Tyrosine is known to quench the phosphorescence of free tryptophan derivatives in solution, but the interaction between tryptophan residues in proteins and neighboring tyrosine side chains has not yet been demonstrated. This report examines the potential
Rahuel-Clermont, Sophie   +4 more
core   +2 more sources

Structure of the Cytoplasmic Loop between Putative Helices II and III of the Mannitol Permease of Escherichia coli: A Tryptophan and 5-Fluorotryptophan Spectroscopy Study [PDF]

open access: yes, 2008
In this work, four single tryptophan (Trp) mutants of the dimeric mannitol transporter of Escherichia coli, EIImtl, are characterized using Trp and 5-fluoroTrp (5-FTrp) fluorescence spectroscopy.
Bokhove, Marcel,   +11 more
core   +2 more sources

Supplementary Data from Multiphoton Phosphorescence Quenching Microscopy Reveals Kinetics of Tumor Oxygenation during Antiangiogenesis and Angiotensin Signaling Inhibition

open access: yes, 2022
Supplementary Data from Multiphoton Phosphorescence Quenching Microscopy Reveals Kinetics of Tumor Oxygenation during Antiangiogenesis and Angiotensin Signaling ...
Margaret R. Martin (6831314)   +14 more
core   +1 more source

Quenching of the phosphorescence of thermally reversible photochromic naphthopyran Re(I) complexes initiated by either visible or ultraviolet radiation [PDF]

open access: yes, 2021
Re(I) complexes bearing thermally reversible photochromic naphthopyran axial ligands undergo highly efficient, reversible phosphorescence quenching actuated by either visible or UV irradiation.
Jacquemin, Denis   +8 more
core   +1 more source

Comparative Phosphorescence Quenching of DNA's of Different Composition [PDF]

open access: yes, 1967
Small amounts of paramagnetic cations quench the phosphorescence of DNA. Although the emission intensity is monotonic with increasing thymine content, the quenching efficiency is not.
Isenberg, I.   +2 more
core   +1 more source

Probing Exciton Localization in Single-Walled Carbon Nanotubes Using High-Resolution Near-Field Microscopy [PDF]

open access: yes, 2010
We observe localization of excitons in semiconducting single-walled carbon nanotubes at room temperature using high-resolution near-field photoluminescence (PL) microscopy.
Georgi, Carsten   +7 more
core   +1 more source

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