Results 361 to 370 of about 12,493,842 (419)
Some of the next articles are maybe not open access.
Donor-Acceptor Fluorophores for Energy-Transfer-Mediated Photocatalysis.
Journal of the American Chemical Society, 2018Triplet-triplet energy transfer (EnT) is a fundamental activation pathway in photocatalysis. In this work, we report the mechanistic origins of the triplet excited state of carbazole-cyanobenzene donor-acceptor (D-A) fluorophores in EnT-based ...
Jingzhi Lu +7 more
semanticscholar +1 more source
On Energy Conservation and Transfer in Mitochondria
Journal of Bioenergetics, 1972Structural and functional features of energy conservation and transfer in mitochondria have been examined in the light of recent developments, and hypothetical schemes for energy coupling and transfer have been presented.
Youssef Hatefi, W. G. Hanstein
openaire +3 more sources
Luminescence and energy transfer in EuAl3B4O12
The Journal of Chemical Physics, 1981The emission and excitation spectra of the Eu3+ luminescence and the energy transfer phenomena in single crystals of Gd1−xEuxAl3B4O12 (0<x?1) have been investigated using time-resolved site-selection techniques. In addition, the luminescence properties of single crystals and powders have been compared.
F. Kellendonk, G. Blasse
openaire +3 more sources
Resonance Energy Transfer in Upconversion Nanoplatforms for Selective Biodetection.
Accounts of Chemical Research, 2017Resonance energy transfer (RET) describes the process that energy is transferred from an excited donor to an acceptor molecule, leading to a reduction in the fluorescence emission intensity of the donor and an increase in that of the acceptor.
Qianqian Su +3 more
semanticscholar +1 more source
Physical Review, 1966
The transfer of energy from single chromium ions to closely coupled pairs of chromium ions in ruby has been investigated. Ruby samples whose concentrations ranged from 0.003 to 1.0% ${\mathrm{Cr}}_{2}$${\mathrm{O}}_{3}$ were prepared and in each crystal the intensity of single-ion fluorescence and of pair fluorescence was accurately measured. Radiative-
openaire +3 more sources
The transfer of energy from single chromium ions to closely coupled pairs of chromium ions in ruby has been investigated. Ruby samples whose concentrations ranged from 0.003 to 1.0% ${\mathrm{Cr}}_{2}$${\mathrm{O}}_{3}$ were prepared and in each crystal the intensity of single-ion fluorescence and of pair fluorescence was accurately measured. Radiative-
openaire +3 more sources
Light-Harvesting and Amplified Energy Transfer in Conjugated Polymer Nanoparticles.
Chemical Reviews, 2017Conjugated polymer nanoparticles are a class of nanoparticles with many useful and interesting properties, including very high fluorescence brightness, excellent photostability, and sensing capabilities.
Yifei Jiang, J. McNeill
semanticscholar +1 more source
Energy transfer in lanthanide upconversion studies for extended optical applications.
Chemical Society Reviews, 2015Lanthanide pairs, which can upconvert low energy photons into higher energy photons, are promising for efficient upconversion emission. A typical system with Yb(3+) as a sensitizer can convert short NIR into visible/ultraviolet light via energy transfer ...
Hao Dong, Ling-Dong Sun, Chunhua Yan
semanticscholar +1 more source
2010
In this chapter, we study the transfer of energy from an excited donor molecule to an acceptor molecule. We discuss different mechanisms involving electron exchange, simultaneous radiationless deexcitation and excitation or photon emission followed by reabsorption.
Philipp O. J. Scherer +1 more
openaire +2 more sources
In this chapter, we study the transfer of energy from an excited donor molecule to an acceptor molecule. We discuss different mechanisms involving electron exchange, simultaneous radiationless deexcitation and excitation or photon emission followed by reabsorption.
Philipp O. J. Scherer +1 more
openaire +2 more sources
Coherence in Energy Transfer and Photosynthesis
Annual Review of Physical Chemistry, 2015Ultrafast energy transfer is used to transmit electronic excitation among the many molecules in photosynthetic antenna complexes. Recent experiments and theories have highlighted the role of coherent transfer in femtosecond studies of these proteins, suggesting the need for accurate dynamical models to capture the subtle characteristics of energy ...
Chenu Aurelia, Scholes Gregory
openaire +3 more sources
The Transfer of Energy across the Cochlea
Acta Oto-Laryngologica, 1959Abstract : Two concepts concerning different aspects of cochlear functions are in an apparent conflict: the pressure-wave concept (which maintains that the acoustic energy entering the cochlea by the oval window must leave in toto by the round window) and the traveling-wave concept of Bekesy.
openaire +5 more sources