Results 81 to 90 of about 215,408 (348)

Localized States and Resultant Band Bending in Graphene Antidot Superlattices

, 2011
We fabricated dye sensitized graphene antidot superlattices with the purpose of elucidating the role of the localized edge state density. The fluorescence from deposited dye molecules was found to strongly quench as a function of increasing antidot ...
Ai, Nan, Begliarbekov, Milan, Santanello, John J., Strauf, Stefan, Sul, Onejae, Yang, Eui-Hyeok, Zhang, Xi   +6 more
core   +1 more source

On the Quenching of the Fluorescence Yield in Photosynthetic Systems [PDF]

Plant Physiology, 1980
A modified matrix model describing transfer of excitation energy in the photosynthetic pigment system is discussed. In addition to the antenna pigments and reaction centers of the simple matrix model, a coupling complex is postulated mediating energy transfer between antenna and reaction centers.
R, van Grondelle, L N, Duysens
openaire   +2 more sources

Through Diamond Robust Surface Enhanced Raman Spectroscopy

Advanced Functional Materials, EarlyView.
Thin film diamond growth offers a unique opportunity for Surface Enhanced Raman Spectroscopy (SERS); the encapsulation of plasmonic nanostructures within a transparent, chemically stable, and physically robust coating. The diamond acts as both a window and protective layer, enabling illumination of the plasmonic nanostructures through the diamond ...
Kieran N. Twaddle, Rebecca J. Watkins, Ralph J. Moors, Massimiliano L.A. Ramsay, Richard B. Jackman   +4 more
wiley   +1 more source

Synthesis and photophysical studies on 5-ethoxycarbonyl-4-cinnamyl-6-methyl-3,4-dihydropyrimidine-2(1H)-one in various solvents

Bulletin of the Chemical Society of Ethiopia, 2009
The 5-ethoxycarbonyl-4-cinnamyl-6-methyl-3,4-dihydropyrimidine-2(1H)-one (DHPM) was synthesized via Biginelli reaction and was characterized by NMR, IR, UV−Visible absorption and fluorescence spectroscopy.
Sheela N. Lad, Umesh S. Mote, Swaminath L. Bhattar, Prashant V. Anbhule, Shivajirao R. Patil   +4 more
doaj  

Lifetime quenching in Yb doped fibres

, 1997
We have discovered that in ytterbium-doped silica fibres the excited state lifetime of a fraction of the Yb ions can be quenched to a very small value, leading to a strong unbleachable loss.
Barber, P.R., Caplen, J.E., Hanna, D.C., Nilsson, J., Paschotta, R., Tropper, A.C.   +5 more
core   +1 more source

Scalable Polyelectrolyte Complex‐Based Sorbent With Hourly Sorption−Desorption Cycles for Multicyclic Atmospheric Water Harvesting in Arid Environments

Advanced Functional Materials, EarlyView.
A polyelectrolyte complex‐based sorbent is produced by scalable, environmentally benign aqueous phase inversion. Its porous, LiCl‐ and GO‐integrated architecture enables hourly adsorption−desorption cycles at low relative humidity (RH < 30%). A large‐scale prototype achieves multicyclic, solar‐driven atmospheric water harvesting of 1.37 L kg−1 day−1 ...
Seung‐Hwan Oh, Incheol Heo, Won Cheol Yoo, Soo‐Hyung Choi   +3 more
wiley   +1 more source

Preliminary Study of the Interaction between Chlorogenic Acid and Myofibrillar Protein Based on Multispectral Techniques

Shipin gongye ke-ji
In this study, the binding properties and structural changes associated with the interaction of Coregonus peled myofibrillar protein (MP) and different concentrations (6, 30, 150, and 300 µmol/g) of chlorogenic acid (CA) were investigated.
Jie LI, Xin GUO, Tianshuai YUAN, Qichao QU, Xinrong ZHU, Jian ZHANG   +5 more
doaj   +1 more source

Interaction of anticancer reduced Schiff base coumarin derivatives with human serum albumin investigated by fluorescence quenching and molecular modeling [PDF]

, 2014
The specific binding of five reduced Schiff base derived 7-amino-coumarin compounds with antitumor activity to human serum albumin, the principal binding protein of blood, was studied by fluorescence spectroscopy.
Belatika, Bernadette S. Creaven, Bourassa, Carter, Chasteen, Creaven, Darius Karcz, Donini, Dömötör, Enyedy, Enyedy, Epps, Essmann, Fanali, Fehske, Froehlich, Galm, Ghuman, He, Hicks, Hicks, Hooper, Hoult, Kratz, Kratz, Kuhn, Lake, Lakowicz, Lundblad, Maucher, Maureen Walsh, Morris, Orsolya Dömötör, Peng, Peters, Peters, Pillai, Shobini, Sjöholm, Sudlow, Tiziano Tuccinardi, Tuccinardi, Tuccinardi, Valeur, von Angerer, Weber, Zatón, Zékány, Éva A. Enyedy   +48 more
core   +2 more sources

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

Study on Interaction between Broad Bean Phenolic Compounds and Proteins using Fluorescence Method

Czech Journal of Food Sciences, 2009
Protein-polyphenol association may affect polyphenols absorption/bioavailability from gastrointestinal tract and finally modulate their biological activities.
A. Kosińska, M. Karamać, R. Amarowicz
doaj   +1 more source