Single particle trajectory analysis for the evaluation of surface accommodation coefficients

2019 ◽  
Author(s):  
Sai Abhishek Peddakotla ◽  
Kishore K. Kammara ◽  
Rakesh Kumar
Keyword(s):  
Single Particle ◽  
Trajectory Analysis ◽  
Particle Trajectory ◽  
Accommodation Coefficients

Anomalous Diffusion: Single Particle Trajectory Analysis

2014 ◽  
Vol 59 (8) ◽  
pp. 775-780 ◽  
Author(s):  
A. Brodin ◽  
◽  
T. Turiv ◽  
V. Nazarenko ◽  
◽  
...  
Keyword(s):  
Anomalous Diffusion ◽  
Single Particle ◽  
Trajectory Analysis ◽  
Particle Trajectory

scholarly journals Detecting Transient Trapping from a Single Trajectory: A Structural Approach

Entropy ◽  
2021 ◽  
Vol 23 (8) ◽  
pp. 1044
Author(s):  
Yann Lanoiselée ◽  
Jak Grimes ◽  
Zsombor Koszegi ◽  
Davide Calebiro
Keyword(s):  
Plasma Membrane ◽  
Single Particle ◽  
Adrenergic Receptors ◽  
Particle Trajectory ◽  
Temporal Structure ◽  
Structural Approach ◽  
New Method ◽  
Trajectory Data ◽  
Receptor Stimulation ◽  
Over Time

In this article, we introduce a new method to detect transient trapping events within a single particle trajectory, thus allowing the explicit accounting of changes in the particle’s dynamics over time. Our method is based on new measures of a smoothed recurrence matrix. The newly introduced set of measures takes into account both the spatial and temporal structure of the trajectory. Therefore, it is adapted to study short-lived trapping domains that are not visited by multiple trajectories. Contrary to most existing methods, it does not rely on using a window, sliding along the trajectory, but rather investigates the trajectory as a whole. This method provides useful information to study intracellular and plasma membrane compartmentalisation. Additionally, this method is applied to single particle trajectory data of β2-adrenergic receptors, revealing that receptor stimulation results in increased trapping of receptors in defined domains, without changing the diffusion of free receptors.

scholarly journals Width dependent collisionless electron dynamics in the static fields of the shock ramp, 1, Single particle behavior and implications for downstream distribution

1997 ◽  
Vol 4 (3) ◽  
pp. 167-172 ◽  
Author(s):  
M. Gedalin ◽  
M. A. Balikhin
Keyword(s):  
Magnetic Fields ◽  
Electron Temperature ◽  
Single Particle ◽  
Electron Distribution ◽  
Trajectory Analysis ◽  
Electron Motion ◽  
Electron Dynamics ◽  
Electron Trajectories ◽  
Electric And Magnetic Fields ◽  
Downstream Distribution

Abstract. We study the collisionless dynamics of electrons in the shock ramp using the numerical trajectory analysis in the model electric and magnetic fields of the shock. Even with very modest assumptions about the cross-shock potential the electron trajectories are very sensitive to the width of the ramp. The character of electron motion changes from the fully adiabatic (with conservation of v2<perp>  /B) when the ramp is wide, to the nonadiabatic one, when the ramp becomes sufficiently narrow. The downstream electron distribution also changes drastically, although this change depends on the initial electron temperature.

Faster Convergence of Diffusion Anisotropy Detection by Three-Step Relation of Single-Particle Trajectory

2016 ◽  
Vol 88 (8) ◽  
pp. 4502-4507 ◽  
Author(s):  
Yu Matsuda ◽  
Itsuo Hanasaki ◽  
Ryo Iwao ◽  
Hiroki Yamaguchi ◽  
Tomohide Niimi
Keyword(s):  
Single Particle ◽  
Particle Trajectory ◽  
Diffusion Anisotropy

Particle Immobilization Stiffness in Dielectrophoresis Trap Depending on the Geometry

2020 ◽  
Author(s):  
Mohammad Rizwen Ur Rahman ◽  
Tae Joon Kwak ◽  
Jörg C. Woehl ◽  
Woo-Jin Chang
Keyword(s):  
Dipole Moment ◽  
Electric Field ◽  
Single Particle ◽  
Charge Separation ◽  
Trajectory Analysis ◽  
Neutral Particle ◽  
Trapping Efficiency ◽  
Uniform Electric Field ◽  
Partial Charge ◽  
Translational Movement

Abstract In dielectrophoresis, a neutral particle experiences a partial charge separation, i.e. induced net dipole moment, when exposed to a non-uniform electric field, and this leads translational movement of the particle. This induced attractive or repulsive motion of the particle suspended in a fluid is known as dielectrophoresis (DEP). In this paper, we have characterized the strength of DEP traps depending on geometry. Three different micro-trap geometries, i.e. triangle, square and circle, were tested to characterize the effect of trap shape on trap stiffness experimentally and numerically using single particle immobilized in the trap. The maximum DEP force generated in triangular μ-trap was found largest among tested geometries. The maximum DEP force of square and circular trap was found around 68.4% and 79.1% of triangular μ-trap, respectively. The trajectory analysis using trapped single particle revealed that the stiffness of circular μ-trap is 1.23 and 1.34 times stronger than the triangular and square μ-trap, respectively. These results will provide useful information in DEP trap geometry designing to enhance trapping efficiency.

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