Evaluation of influence of anisotropic diffusion near a wall in near-field fluorescence correlation spectroscopy of nanoparticles

Kazuo Kasahara; Toshiharu Saiki

doi:10.1007/s10043-011-0048-5

Evaluation of influence of anisotropic diffusion near a wall in near-field fluorescence correlation spectroscopy of nanoparticles

Kazuo Kasahara, Toshiharu Saiki

Department of Electronics and Electrical Engineering

Research output: Contribution to journal › Article › peer-review

Abstract

Fluorescence correlation spectroscopy (FCS) of colloidal nanoparticles using a near-field fiber probe was numerically simulated. The near-wall dynamics was simulated by accounting for the anisotropic mobility of nanoparticles owing to hydrodynamic interaction with a wall (Stokes viscous force). By comparing the simulation results with theoretical model calculations, we found that the influence of anisotropic diffusion is insignificant in near-field FCS autocorrelation analysis.

Original language	English
Pages (from-to)	237-240
Number of pages	4
Journal	Optical Review
Volume	18
Issue number	2
DOIs	https://doi.org/10.1007/s10043-011-0048-5
Publication status	Published - 2011 Mar

Keywords

diffusion coefficient
fluorescence correlation spectroscopy
hydrodynamics
near-field optical microscopy

ASJC Scopus subject areas

Atomic and Molecular Physics, and Optics

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10.1007/s10043-011-0048-5

Cite this

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title = "Evaluation of influence of anisotropic diffusion near a wall in near-field fluorescence correlation spectroscopy of nanoparticles",

abstract = "Fluorescence correlation spectroscopy (FCS) of colloidal nanoparticles using a near-field fiber probe was numerically simulated. The near-wall dynamics was simulated by accounting for the anisotropic mobility of nanoparticles owing to hydrodynamic interaction with a wall (Stokes viscous force). By comparing the simulation results with theoretical model calculations, we found that the influence of anisotropic diffusion is insignificant in near-field FCS autocorrelation analysis.",

keywords = "diffusion coefficient, fluorescence correlation spectroscopy, hydrodynamics, near-field optical microscopy",

author = "Kazuo Kasahara and Toshiharu Saiki",

year = "2011",

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doi = "10.1007/s10043-011-0048-5",

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N2 - Fluorescence correlation spectroscopy (FCS) of colloidal nanoparticles using a near-field fiber probe was numerically simulated. The near-wall dynamics was simulated by accounting for the anisotropic mobility of nanoparticles owing to hydrodynamic interaction with a wall (Stokes viscous force). By comparing the simulation results with theoretical model calculations, we found that the influence of anisotropic diffusion is insignificant in near-field FCS autocorrelation analysis.

AB - Fluorescence correlation spectroscopy (FCS) of colloidal nanoparticles using a near-field fiber probe was numerically simulated. The near-wall dynamics was simulated by accounting for the anisotropic mobility of nanoparticles owing to hydrodynamic interaction with a wall (Stokes viscous force). By comparing the simulation results with theoretical model calculations, we found that the influence of anisotropic diffusion is insignificant in near-field FCS autocorrelation analysis.

KW - diffusion coefficient

KW - fluorescence correlation spectroscopy

KW - hydrodynamics

KW - near-field optical microscopy

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Evaluation of influence of anisotropic diffusion near a wall in near-field fluorescence correlation spectroscopy of nanoparticles

Abstract

Keywords

ASJC Scopus subject areas

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