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Updated: May 28, 2026

Measurement of Particle Size Distribution in Turbid Solutions by Dynamic Light Scattering Microscopy

Measurement of Particle Size Distribution in Turbid Solutions by Dynamic Light Scattering Microscopy

Published on: January 9, 2017

Low-coherence dynamic light scattering and its potential for measuring cell dynamics.

Katsuhiro Ishii¹, Toshiaki Iwai

¹The Graduate School for the Creation of New Photonics Industries, 1955-1 Kurematsucho, Nishi-Ku, Hamamatsu, 4311202, Japan. ishii@gpi.ac.jp

Current Pharmaceutical Biotechnology

|November 2, 2011

Summary

Low-coherence dynamic light scattering (LC-DLS) overcomes limitations of conventional dynamic light scattering (DLS) in turbid media. This technique enhances the study of cell dynamics and molecular interactions in complex biological samples.

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Area of Science:

Biophysics
Cell Biology
Photonics

Background:

Fluorescence correlation spectroscopy (FCS) and dynamic light scattering (DLS) are vital for studying cellular structures and dynamics.
Conventional DLS faces challenges in highly scattering biological media due to multiple scattering effects.
Overcoming these limitations is crucial for advancing in vivo cellular analysis.

Purpose of the Study:

To review the principles and applications of low-coherence dynamic light scattering (LC-DLS).
To highlight LC-DLS's advantages over conventional DLS for biological sample analysis.
To demonstrate LC-DLS's capability in measuring dynamics in turbid media.

Main Methods:

Theoretical and experimental characterization of LC-DLS properties.
Application of LC-DLS to measure diffusion coefficients of macromolecules in turbid media.
Utilizing LC-DLS to investigate interparticle and molecular interactions.

Main Results:

LC-DLS effectively suppresses multiple scattering, a major limitation in conventional DLS.
The technique shows significant potential for measuring cell dynamics in complex biological environments.
Successful demonstration of diffusion coefficient measurements and interaction studies using LC-DLS.

Conclusions:

LC-DLS offers a robust alternative to conventional DLS for studying dynamics in scattering biological samples.
The method provides enhanced potential for analyzing cellular dynamics and molecular interactions.
LC-DLS is a promising technique for advancing biophysical and cell biology research.