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相关论文: Time-Heterogeneity of the F\"orster Radius from Di…

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Single molecule time traces reveal the time evolution of unsynchronized kinetic systems. Especially single molecule F\"orster resonance energy transfer (smFRET) provides access to enzymatically important timescales, combined with molecular…

定量方法 · 定量生物学 2018-01-17 Sonja Schmid , Thorsten Hugel

We studied time-dependent features of high-frequency fluorescent radiation from a two-level quantum system with broken inversion spatial symmetry. The system in question was modelled after a one-electron two-level asymmetric polar…

量子物理 · 物理学 2024-12-17 Andrey V. Soldatov

The paper is concerned with Forster Resonance Energy Transfer (FRET) considered as a mechanism for communication between nanodevices. Two solved issues are reported in the paper, namely: signal generation and signal storage in FRET-based…

医学物理 · 物理学 2019-12-05 Jakub Kmiecik , Krzysztof Wojcik , Pawel Kulakowski , Andrzej Jajszczyk

Resonant energy transfer (RET), between equal parity 1s65s$^3\mathrm{S}_1$ and 1s66s$^3\mathrm{S}_1$ Rydberg levels in helium has been observed in low-temperature ($\sim80$ mK) collisions with ammonia molecules which undergo inversion…

原子物理 · 物理学 2026-05-21 J. Zou , R. R. W. Wang , R. González-Férez , H. R. Sadeghpour , S. D. Hogan

We study transfer of coherent nuclear oscillations between an excitation energy donor and an acceptor in a simple dimeric electronic system coupled to an unstructured thermodynamic bath and some pronounced vibrational intramolecular mode.…

化学物理 · 物理学 2015-01-08 Tomáš Mančal , Jakub Dostál , Jakub Pšenčík , Donatas Zigmantas

We study the dynamical properties of a two-dimensional ensemble of self-propelled dumbbells with only repulsive interactions. This model undergoes a phase transition between a homogeneous and a segregated phase and we focus on the former.…

统计力学 · 物理学 2015-05-19 Leticia F. Cugliandolo , Giuseppe Gonnella , Antonio Suma

ATP synthases utilize a proton motive force to synthesize ATP. In reverse, these membrane-embedded enzymes can also hydrolyze ATP to pump protons over the membrane. To prevent wasteful ATP hydrolysis, distinct control mechanisms exist for…

生物大分子 · 定量生物学 2018-01-16 Hendrik Sielaff , Dhirendra Singh , Gerhard Grueber , Michael Börsch

We examine the effects of a periodically varying flow velocity on the standing and travelling wave patterns formed by the flow-distributed oscillation (FDO) mechanism. In the kinematic (or diffusionless) limit, the phase fronts undergo a…

斑图形成与孤子 · 物理学 2009-11-11 Patrick N. McGraw , Michael Menzinger

Epithelial-Mesenchymal Transition (EMT), and the corresponding reverse process, Mesenchymal-Epithelial Transition (MET), are dynamic and reversible cellular programs orchestrated by many changes at biochemical and morphological levels. A…

分子网络 · 定量生物学 2019-07-26 Shubham Tripathi , Jianhua Xing , Herbert Levine , Mohit Kumar Jolly

Electron transfer (ET) in molecular donor-acceptor dye systems is crucial for charge transport in organic semiconductors. Classically, ET rates should decrease with increasing donor-acceptor distance while the microscopic mechanism is more…

Resonance energy transfer methods are in wide use for evaluating protein-protein interactions and protein conformational changes in living cells. Fluorescence resonance energy transfer (FRET) measures energy transfer as a function of the…

生物大分子 · 定量生物学 2011-05-05 Amparo Baíllo , Laura Martínez-Muñoz , Mario Mellado

From studying the time evolution of the single electron density matrix within a density functional tight-binding formalism we study in a fully atomistic picture the electronic excitation transfer between two photosynthetic pigments in real…

化学物理 · 物理学 2015-02-03 María Belén Oviedo , Cristián G. Sánchez

Dye experimentation is a widely used method in experimental fluid mechanics for flow analysis or for the study of the transport of particles within a fluid. This technique is particularly useful in biomedical diagnostic applications ranging…

流体动力学 · 物理学 2023-09-25 Faisal Amlani , Heng Wei , Niema M. Pahlevan

We investigate the impact of rotational diffusion on the electrodynamic coupling of fluorescent dye molecules (oscillating electric dipoles) to a tunable planar metallic nanocavity. Fast rotational diffusion of the molecules leads to a…

Multiplexed, real-time fluorescence detection at the single-molecule level is highly desirable to reveal the stoichiometry, dynamics, and interactions of individual molecular species within complex systems. However, traditionally…

An optical field will undergo coherent diffusion when it is mapped into thermal-motioned atoms, e.g., in a slow or storage light process. As was demonstrated before, such diffusion effect is equivalent to a spatial low-pass filter…

量子物理 · 物理学 2022-07-15 Yun Chen , Chengyuan Wang , Zibin Jiang , Wei Zhang , Zehao Shen , Hong Gao , Fuli Li

Single-molecule FRET is widely used to study helicases by detecting distance changes between a fluorescent donor and an acceptor anchored to overhangs of a forked DNA duplex. However, it has lacked single-base pair (1-bp) resolution…

生物物理 · 物理学 2017-10-04 Wenxia Lin , Jianbing Ma , Daguan Nong , Chunhua Xu , Bo Zhang , Jinghua Li , Qi Jia , Shuoxing Dou , Xuguang Xi , Ying Lu , Ming Li

F\"orster resonance energy transfer has an important role in nature and technology, rendering its exact theoretical understanding significant. To this end, a system of two electronically decoupled quantum dots (QDs) is considered,…

介观与纳米尺度物理 · 物理学 2025-09-22 Liubov S. Sirkina , Luke M. J. Hall , Amy Morreau , Wolfgang Langbein , Egor A. Muljarov

Photo-induced excited-state energy transfer (EET) processes play an important role in the solar energy conversions. The phenylene ethynylene (PE) dendrimers display great potential in improving the efficiency of solar cells, because of…

化学物理 · 物理学 2024-01-17 Sisi Liu , Jiawei Peng , Peng Bao , Qiang Shi , Zhenggang Lan

Recently, we have reported theoretical studies (J. Chem. Phys. 129, 054703, 2008 and J. Chem. Phys. 130, 086101, 2009) on the rate of energy transfer from an electronically excited molecule to graphene. It was found that graphene is a very…

介观与纳米尺度物理 · 物理学 2011-04-18 R S Swathi , K L Sebastian