Results 31 to 40 of about 40,474 (283)

Biophosphorescence in fluorescent millipedes (Diplopoda: Xystodesmidae) and its relationships with bioluminescence

Scientific Reports, 2023
Three types of luminescence have been reported in living organisms: bioluminescence (BL), ultraweak chemiluminescence and biofluorescence (FL). In millipedes, both BL and FL have been reported in Motyxia sequoiae and related Xystodesmidae species ...
Vadim R. Viviani
doaj   +1 more source

Estimated IR and phosphorescence emission fluxes for specific Polycyclic Aromatic Hydrocarbons in the Red Rectangle

, 2005
Following the tentative identification of the blue luminescence in the Red Rectangle by Vijh et al. (2005), we compute absolute fluxes for the vibrational IR emission and phosphorescence bands of three small polycyclic aromatic hydrocarbons.
Allamandola, Allamandola, Allamandola, Bauschlicher, Bregman, C. Joblin, Cané, Cohen, Cohen, Cook, Crawford, D. Toublanc, Duley, Ehrenfreund, G. Malloci, G. Mulas, Hudgins, Hudgins, Hudgins, Hudgins, Joblin, Joblin, Joblin, Joblin, Kameswara-Rao, Kim, Langhoff, Le Page, Leach, Léger, Léger, Léger, Malloci, Malloci, Malloci, Martin, Moutou, Mulas, Mulas, Nayfeh, Oomens, Pech, Salinas Castillo, Scarrott, Schertl, Schmidt, Szczepanski, van der Zwet, Van Winckel, Vijh, Vijh, Zhang   +51 more
core   +2 more sources

Biobased and biodegradable films exhibiting circularly polarized room temperature phosphorescence

Nature Communications
There is interest in developing sustainable materials displaying circularly polarized room-temperature phosphorescence, which have been scarcely reported.
Mengnan Cao, Yiran Ren, Yue Wu, Jingjie Shen, Shujun Li, Zhen-Qiang Yu, Shouxin Liu, Jian Li, Orlando J. Rojas, Zhijun Chen   +9 more
doaj   +1 more source

Visible light-excited full-color phosphorescent material realized by carbon dots dispersed in polyacrylamide and applied to anti-counterfeiting

Materials Today Advances, 2023
Carbon dots-based phosphorescent composites have excellent room-temperature phosphorescent properties. However, the development of carbon dots-based phosphorescent materials that are excited by visible light and have adjustable colors remains a challenge.
Huiyong Wang, Bowen Shi, Hongmei Yu, Shu Yang, Guochao Nie, Shaoyan Wang, Wei Chen   +6 more
doaj   +1 more source

Highly efficient, dual state emission from an organic semiconductor

, 2013
We report highly efficient, simultaneous fluorescence and phosphorescence (74% yield) at room temperature from a single molecule ensemble of (BzP)PB dispersed into a polymer host. The slow phosphorescence (208 ms lifetime) is very efficient (50%) at room
Baldo, Marc A., Prins, Ferry, Reineke, Sebastian, Seidler, Nico, Tisdale, William A., Yost, Shane R.   +5 more
core   +1 more source

Triplet-Tuning: A Novel Family of Non-Empirical Exchange-Correlation Functionals [PDF]

, 2019
In the framework of DFT, the lowest triplet excited state, T$_1$, can be evaluated using multiple formulations, the most straightforward of which are UDFT and TDDFT.
Lin, Zhou, Van Voorhis, Troy
core   +4 more sources

Light Activated Induction of Cuproptosis in Resistant Cancer Cells Using Polymeric BODIPY Nanoparticles for Photoactivated Chemotherapy

Advanced Functional Materials, EarlyView.
This article presents a photo‐responsive nanoparticle platform that precisely triggers copper‐dependent cuproptotic cell death in (drug‐resistant) cancer cells. The system remains stable and inactive in the dark but releases cytotoxic species upon red‐light irradiation, achieving potent activity in drug‐resistant breast cancer cells.
Ricarda Zimmermann, Nicolás Montesdeoca, Johannes Karges   +2 more
wiley   +1 more source

Hierarchical luminescence center coupling enables time-dependent phosphorescence color from self-protective carbonized polymer dots

Nature Communications
Time-dependent phosphorescence color is attractive for various applications; however, the modulation mechanism of multiple luminescence centers is still confused.
Meichao Shi, Qian Gao, Mingxing Chen, Ziwen Lv, Jun Rao, Gegu Chen, Baozhong Lü, Wei Qi, Junli Ren, Feng Peng   +9 more
doaj   +1 more source

Temperature dependent persistent luminescence : evaluating the optimum working temperature [PDF]

, 2019
Development of persistent luminescent materials has drawn continuous attention in recent years in view of their potential applications in the fields of security night-vision signage, in vivo bio-imaging and optical data storage.
De Clercq, Olivier, Du, Jiaren, Poelman, Dirk   +2 more
core   +1 more source

Uncovering the Origin of Efficiency Roll‐Off in TADF OLEDs

Advanced Functional Materials, EarlyView.
OLEDs based on thermally activated delayed fluorescent (TADF) materials often suffer from a severe drop in efficiency at high brightness levels. This work presents a technique to uncover the source of this efficiency drop, and quantifies the exciton‐exciton and exciton‐polaron annihilation processes responsible for efficiency losses in our TADF OLEDs ...
Liam G. King, Kou Yoshida, Arvydas Ruseckas, Ifor D. W. Samuel   +3 more
wiley   +1 more source