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Single molecule FRET (fluorescence resonance energy transfer) is a powerful technique for detecting real-time conformational changes and molecular interactions during biological reactions. In this review, we examine different techniques of…

生物大分子 · 定量生物学 2007-05-23 Ivan Rasnik , Sean A. McKinney , Taekjip Ha

We describe an exactly solvable model which illustrates the Fluctuation Theorem and other predictions for systems evolving far from equilibrium. Our model describes a particle dragged by a spring through a thermal environment. The rate at…

统计力学 · 物理学 2007-05-23 O. Mazonka , C. Jarzynski

We theoretically analyze the excitation energy transfer between two closely spaced linear molecular J-aggregates, whose excited states are Frenkel excitons. The aggregate with the higher (lower) exciton band edge energy is considered as the…

无序系统与神经网络 · 物理学 2007-05-23 C. Didraga , V. A. Malyshev , J. Knoester

Photonic cavities are gathering a large interest to enhance the energy transfer between two dipoles, with far-reaching consequences for applications in photovoltaics, lighting sources and molecular biosensing. However, experimental…

Long distance excitation energy transfer between a donor and an acceptor embedded in a polymer chain is usually assumed to occur via the Forster mechanism which predicts a 1/R^6 distance dependence of the transfer rate, where R is the…

统计力学 · 物理学 2007-05-23 G. Srinivas , A. Yethiraj , B. Bagchi

We investigate the role of quantum coherence in modulating the energy transfer rate between two independent energy donors and a single acceptor participating in an excitonic energy transfer process. The energy transfer rate depends…

化学物理 · 物理学 2015-07-13 Sreenath K. Manikandan , Anil Shaji

Resonance energy transfer (RET) is an inherently anisotropic process. Even the simplest, well-known F\"orster theory, based on the transition dipole-dipole coupling, implicitly incorporates the anisotropic character of RET. In this…

化学物理 · 物理学 2017-03-23 Gabriel Gil , Stefano Corni , Alain Delgado , Andrea Bertoni , Guido Goldoni

Data scarcity, bias, and experimental noise are all frequently encountered problems in the application of deep learning to chemical and material science disciplines. Transfer learning has proven effective in compensating for the lack in…

化学物理 · 物理学 2021-03-16 Florence H. Vermeire , William H. Green

Long range resonance energy transfer (RET) between a donor and an acceptor molecule is increasingly being used in many areas of biological and material science. The phenomenon is used to monitor the in vivo separation between different…

材料科学 · 物理学 2007-05-23 Sangeeta Saini , Somnath Bhowmick , Vijay B. Shenoy , Biman Bagchi

Forster-type nonradiative energy transfer (NRET) is widely used, especially utilizing nanostructures in different combinations and configurations. However, the existing well-accepted Forster theory is only for the case of a single particle…

介观与纳米尺度物理 · 物理学 2013-06-06 P. L. Hernandez-Martinez , A. O. Govorov , H. V. Demir

We investigate theoretically the stochastic dynamics of Resonance Electronic Energy Transfer (RET), in a bi-dimensional overexcited ensemble of donor and acceptor molecules. We find that, after initial optical excitation of all the donors,…

介观与纳米尺度物理 · 物理学 2023-11-27 R. Avriller , A. Marché , G. Jonusauskas

Single-molecule F\"orster Resonance Energy Transfer (smFRET) is ideally suited to resolve the dynamics of biomolecules. A significant challenge to date is capturing and quantifying the exchange between multiple conformational states, mainly…

Foerster and modified Redfield theories play one of the central roles in the description of excitation energy transfer in molecular systems. However, in the present state, these theories describe only the dynamics of populations of local…

化学物理 · 物理学 2020-01-29 Anton Trushechkin

Experimental evidence shows that a variety of photosynthetic systems can preserve quantum beats in the process of electronic energy transfer, even at room temperature. However, whether this quantum coherence arises in vivo and whether it…

量子物理 · 物理学 2012-10-22 Stephan Hoyer , Akihito Ishizaki , K. Birgitta Whaley

Motivated by recent experiments on photon statistics from individual dye pairs planted on biomolecules and coupled by fluorescence resonance energy transfer (FRET), we show here that the FRET dynamics can be modelled by Gaussian random…

量子物理 · 物理学 2016-09-28 G. O. Ariunbold , G. S. Agarwal , Z. Wang , H. Walther , M. O. Scully

Recent experiments have shown that highly efficient energy transfer can take place in organic nanocrystals at extremely low acceptor densities. This striking phenomenon has been ascribed to the formation of exciton polaritons thanks to the…

化学物理 · 物理学 2021-01-12 R. Sáez-Blázquez , J. Feist , F. J. García-Vidal , A. I. Fernández-Domínguez

There is a remarkable characteristic of photosynthesis in nature, that is, the energy transfer efficiency is close to 100%. Recently, due to the rapid progress made in the experimental techniques, quantum coherent effects have been…

化学物理 · 物理学 2020-02-25 Ming-Jie Tao , Na-Na Zhang , Peng-Yu Wen , Fu-Guo Deng , Qing Ai , Gui-Lu Long

We present numerically exact results for the quantum coherent energy transfer in the Fenna-Matthews-Olson molecular aggregate under realistic physiological conditions, including vibrational fluctuations of the protein and the pigments for…

介观与纳米尺度物理 · 物理学 2011-12-06 Peter Nalbach , Daniel Braun , Michael Thorwart

Resonant energy transfer mechanisms have been observed in the sensitized luminescence of solids, in quantum dots and in molecular nanostructures, and they also play a central role in light harvesting processes in photosynthetic organisms.…

量子物理 · 物理学 2009-11-07 Brendon Lovett , John H. Reina , Ahsan Nazir , Beeneet Kothari , Andrew Briggs