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Related papers: Monitoring the conformational dynamics of a single…

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Binding, lateral diffusion and exchange are fundamental dynamic processes involved in protein association with cellular membranes. In this study, we developed numerical simulations of lateral diffusion and exchange of fluorophores in…

Subcellular Processes · Quantitative Biology 2010-06-08 Kalyan C. Vinnakota , David A. Mitchell , Robert J. Deschenes , Tetsuro Wakatsuki , Daniel A. Beard

Zero-mode waveguide (ZMW) nanoapertures are widely used to monitor single molecules beyond the range accessible to normal microscopes. However, several aspects of the ZMW influence on the photophysics of fluorophores remain inadequately…

Optics · Physics 2022-05-04 Satyajit Patra , Jean-Benoît Claude , Jérôme Wenger

At room temperature, low frequency vibrations at far-infrared frequencies are thermally excited ($k_B T > h \nu$) and not restricted to harmonic fluctuations around a single potential energy minimum. For folded proteins, these intrinsically…

Statistical Mechanics · Physics 2026-05-08 Michael A. Sauer , Souvik Mondal , Madeline Cano , Matthias Heyden

The XAFS beamline at Elettra Synchrotron in Trieste combines X-ray absorption spectroscopy and X-ray diffraction to provide chemically specific structural information of materials. It operates in the energy range 2.4-27 keV by using a…

We compare charge transitions on a deterministic single P donor in silicon using radio frequency reflectometry measurements with a tunnel coupled reservoir and DC charge sensing using a capacitively coupled single electron transistor (SET).…

Mesoscale and Nanoscale Physics · Physics 2015-09-14 Samuel J. Hile , Matthew G. House , Eldad Peretz , Jan Verduijn , Daniel Widmann , Takashi Kobayashi , Sven Rogge , Michelle Y. Simmons

The Fractional Fourier Transform (FRT) corresponds to an arbitrary-angle rotation in the phase space, e.g. the time-frequency (TF) space, and generalizes the fundamentally important Fourier Transform. FRT applications range from classical…

Optics · Physics 2024-03-06 Michał Lipka , Michał Parniak

F\"orster Resonant Energy Transfer (FRET)-mediated exciton diffusion through artificial nanoscale building block assemblies could be used as a new optoelectronic design element to transport energy. However, so far nanocrystal (NC) systems…

Force-distance curve experiments are commonly performed in Atomic Force Microscopy (AFM) to obtain the viscoelastic characteristics of materials, such as the storage and loss moduli or compliances. The classic methods used to obtain these…

Applied Physics · Physics 2022-04-25 Berkin Uluutku , Marshall Richards McCraw , Santiago D. Solares

In this work, we use a site-selective functionalization strategy to decorate plasmonic nanopores with one or more fluorescent dyes. Using an easy and robust fabrication method, we manage to build single plasmonic rings on top of dielectric…

In this paper we propose a solution to the need for a fast particle transport algorithm in Online Adaptive Proton Therapy capable of cheaply, but accurately computing the changes in patient dose metrics as a result of changes in the system…

Medical Physics · Physics 2022-08-26 Tiberiu Burlacu , Danny Lathouwers , Zoltán Perkó

The thermodynamic driving force in the self-assembly of the secondary structure of a class of donor-acceptor oligorotaxanes is elucidated by means of molecular dynamics simulations of equilibrium isometric single-molecule force spectroscopy…

Statistical Mechanics · Physics 2015-05-13 Ignacio Franco , George C. Schatz , Mark A. Ratner

The exponential growth of data from modern radio telescopes presents a significant challenge to traditional single-pulse search algorithms, which are computationally intensive and prone to high false-positive rates due to Radio Frequency…

Instrumentation and Methods for Astrophysics · Physics 2026-04-15 Bin Zhang , Yabiao Wang , Xiaoyao Xie , Shanping You , Xuhong Yu , Qiuhua Li , Hongwei Li , Shaowen Du , Chenchen Miao , Dengke Zhou , Jianhua Fang , Jiafu Wu , Pei Wang , Di Li

Real-time feedback-driven single-particle tracking is a technique that uses feedback control to enable single-molecule spectroscopy of freely diffusing particles in native or near-native environments. A number of different RT-FD-SPT…

Instrumentation and Detectors · Physics 2022-09-28 Bertus van Heerden , Tjaart P. J. Krüger

FoF1-ATP synthases are membrane-embedded protein machines that catalyze the synthesis of adenosine triphosphate. Using photoactivation-based localization microscopy (PALM) in TIR-illumination as well as structured illumination microscopy…

Biomolecules · Quantitative Biology 2015-06-11 Anja Renz , Marc Renz , Diana Kluetsch , Gabriele Deckers-Hebestreit , Michael Börsch

We investigate the reversible disassembly of VOV1-ATPase in life yeast cells by time resolved confocal FRET imaging. VOV1-ATPase in the vacuolar membrane pumps protons from the cytosol into the vacuole. VOV1-ATPase is a rotary biological…

Subcellular Processes · Quantitative Biology 2015-05-18 Stefan Ernst , Claire Batisse , Nawid Zarrabi , Bettina Boettcher , Michael Boersch

The electron transport through a three-terminal single-molecular transistor (SMT) is theoretically studied. We find that the differential conductance of the third and weakly coupled terminal versus its voltage matches well with the spectral…

Mesoscale and Nanoscale Physics · Physics 2009-11-13 Juntao Song , Qing-feng Sun , Jinhua Gao , X. C. Xie

Using analytical calculations and computer simulations we consider both the lateral diffusion of a membrane protein and the fluctuation spectrum of the membrane in which the protein is embedded. The membrane protein interacts with the…

Soft Condensed Matter · Physics 2015-05-18 Ellen Reister-Gottfried , Stefan M. Leitenberger , Udo Seifert

We describe the effect of optical aberrations on fluorescence fluctuations microscopy (FFM), when focusing through a single living cell. FFM measurements are performed in an aqueous fluorescent solution and prove to be a highly sensitive…

Biological Physics · Physics 2014-03-13 Charles-Edouard Leroux , Alexei Grichine , Irène Wang , Antoine Delon

Integrative biomolecular modeling of RNA relies on structural refined collections and accurate experimental data that reflect binding and folding behavior. However, the prediction of such collections remains challenging due to the rugged…

The stochastic mutual repressor model is analysed using perturbation methods. This simple model of a gene circuit consists of two genes and three promotor states. Either of the two protein products can dimerize, forming a repressor molecule…

Biological Physics · Physics 2014-06-12 Jay Newby