Dynamic light scattering

{
  "id": "MLC-T-CHM-003493",
  "term": "Dynamic light scattering",
  "field": "Chemistry",
  "definition": "A technique used to measure the size distribution of particles or macromolecules in a solution or suspension by analyzing the fluctuations in scattered light intensity caused by Brownian motion. The rate of these fluctuations is related to the diffusion coefficient of the particles, which can then be used to calculate their hydrodynamic size. This method is widely applied for characterizing polymer solutions and colloidal systems.",
  "synonyms": [
    "photon-correlation spectroscopy (PCS)",
    "quasi-elastic light scattering (QELS)"
  ],
  "subject": "Polymer",
  "see_also": [
    "non-uniform dispersion",
    "uniform dispersion"
  ],
  "references": [
    "PAC, 2015, 87, 71. 'Definitions of terms relating to individual macromolecules, macromolecular assemblies, polymer solutions, and amorphous bulk polymers (IUPAC Recommendations 2014)' on page 107 (https://doi.org/10.1515/pac-2013-0201)"
  ],
  "url": "https://mlchart.com/terminology/chemistry/dynamic-light-scattering/"
}