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

Kazuo Kasahara, Toshiharu Saiki

    Research output: Contribution to journalArticle

    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 languageEnglish
    Pages (from-to)237-240
    Number of pages4
    JournalOptical Review
    Volume18
    Issue number2
    DOIs
    Publication statusPublished - 2011 Mar 1

    Keywords

    • diffusion coefficient
    • fluorescence correlation spectroscopy
    • hydrodynamics
    • near-field optical microscopy

    ASJC Scopus subject areas

    • Atomic and Molecular Physics, and Optics

    Fingerprint Dive into the research topics of 'Evaluation of influence of anisotropic diffusion near a wall in near-field fluorescence correlation spectroscopy of nanoparticles'. Together they form a unique fingerprint.

  • Cite this