Results 51 to 60 of about 21,451 (138)

Influence of geometry on the emitting properties of 2,3-naphthalimides [PDF]

, 1992
The luminescence properties of 2,3-naphthalimides have been studied using picosecond and nanosecond spectroscopies. In acetonitrile solution N-phenyl-2,3-naphthalimid(e3 ) is found to emit dual fluorescence with emission maxima at 385 and 490 nm ...
Biczók, László, Bérces, Tibor, Demeter, Attila, Kossanyi, Jean, Valat, Pierre, Wintgens, Veronique   +5 more
core   +1 more source

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]

, 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.
Broos J., Broos J., Broos J., Broos J., Broos J., Callis P. R., Chen Y., Cioni P., Eftink M. R., Galley W. C., Gonnelli M., Gonnelli M., Koning R. I., Lakowicz J. R., Legler P. M., Lengeler J. W., Liu T. Q., Meech S. R., Nguyen T. X., Robillard G. T., Robillard G. T., Ross J. B. A., Strambini G. B., Sugiyama J. E., Swaving Dijkstra D., van Montfort B. A., van Montfort R. L. M., Veldhuis G., Veldhuis G., Veldhuis G., Vervoort E. B., Vos E. P., Winkler G. R.   +32 more
core   +3 more sources

Efficient Room-Temperature Luminescence of Indole-5-Carboxamide in Poly(vinyl alcohol) Films

Photochem
N-phenyl-1H-Indole-5-carboxamide (Ind-CA) exhibits previously unknown room-temperature phosphorescence (RTP) when immobilized in poly (vinyl alcohol) film (PVA film).
Bong Lee, Agnieszka Jablonska, Rajveer Sagoo, Danh Pham, Trang Thien Pham, Sergei V. Dzyuba, Zygmunt Gryczynski, Ignacy Gryczynski   +7 more
doaj   +1 more source

Continuous Condensed Triplet Accumulation for Irradiance‐Induced Anticounterfeit Afterglow

Advanced Science, 2023
Afterglow room‐temperature emission that is independent of autofluorescence after ceasing excitation is a promising technology for state‐of‐the‐art bioimaging and security devices.
Ende Hopsah Badriyah, Kikuya Hayashi, Bahadur Sk, Rina Takano, Takayuki Ishida, Shuzo Hirata   +5 more
doaj   +1 more source

Deactivation of biacetyl triplets by cyanocobaltate(III) complexes [PDF]

, 1972
The rate of electronic energy transfer from biacetyl triplets to Co(CN)_(5)(X)^(n–)(X = CN^–, MeCN, pyridine, N_(3)^–, H_(2)O, or SCN^–) is strongly dependent on the energy of the first spin-allowed d–d transition of Co(CN)_(5)(X)^(n–), and (for X = CN^–,
Bredesen, Dale, Gray, Harry B., Hammond, George S., Wrighton, Mark   +3 more
core   +1 more source

Iridium complex, a phosphorescent light-emitting diode material, serves as a novel chemical probe for imaging hypoxic tumor tissues [PDF]

, 2007
Iridium complex, a promising organic light-emitting diode for next generation television displays, emits phosphorescence. Phosphorescence is quenched by oxygen. We used this oxygen-quenching feature for imaging tumor hypoxia.
Keigo Endo, Masahiro Hosaka, Seiji Tobita, Shaojuan Zhang, Toshitada Yoshihara, Toshiyuki Takeuchi, Yasuhiko Iida   +6 more
core   +1 more source

Mechanical Stretch α‐Cyclodextrin Pseudopolyrotaxane Elastomer with Reversible Phosphorescence Behavior

Advanced Science
Polyethylene glycol chains in two terminals of the naphthalene functional group are threaded into α‐cyclodextrin cavities to form the pseudopolyrotaxane (NPR), which not only effectively induces the phosphorescence of the naphthalene functional group by ...
Yi Zhang, Yong Chen, Jian‐Qiu Li, Song‐En Liu, Yu Liu   +4 more
doaj   +1 more source

Robust and Biocompatible Functionalization of ZnS Nanoparticles by Catechol-Bearing Poly(2-Methyl-2-Oxazoline)s. [PDF]

, 2018
Zinc sulfide (ZnS) nanoparticles (NPs) are particularly interesting materials for their electronic and luminescent properties. Unfortunately, their robust and stable functionalization and stabilization, especially in aqueous media, has represented a ...
Benetti, Em, Causin, V, De Fazio, Af, Gross, S., Ischia, G, Mognato, M, Morgese, G, Pedron, D, Piotto, C, Rosenboom, Jg   +9 more
core   +2 more sources

Matrix‐free room‐temperature phosphorescence graphitic carbon nitride quantum dots based on halogen bond interactions for security applications

Nano Select, 2022
Herein, we first designed a one‐step strategy to achieve matrix‐free room temperature phosphorescence (RTP) materials by low temperature solid phase synthesis, using sodium citrate as carbon source and urea as nitrogen source.
Yuelin Kong, Yu He, Yaping Wang, Gongwu Song   +3 more
doaj   +1 more source

Inverting Singlet and Triplet Excited States using Strong Light-Matter Coupling

, 2019
In organic microcavities, hybrid light-matter states can form with energies that differ from the bare molecular excitation energies by nearly 1 eV. A timely question, given recent advances in the development of thermally activated delayed fluorescence ...
Eizner, Elad, Kéna-Cohen, Stéphane, Martínez-Martínez, Luis A., Yuen-Zhou, Joel   +3 more
core   +1 more source