Residual emission anisotropy

{
  "id": "MLC-T-CHM-010222",
  "term": "Residual emission anisotropy",
  "field": "Chemistry",
  "definition": "The steady non-zero value, r∞, to which fluorescence anisotropy decays when photoselected molecules rotate only within a limited range of angles, as with probes in lipid bilayers or liquid crystals, so they never become randomly oriented. A larger residual value means the fluorophore is confined to a narrower range of angles. It differs from the fundamental anisotropy r0, which is the value at time zero before any rotation.",
  "subject": "Organic and Biomolecular Chemistry",
  "see_also": [
    "anisotropy",
    "emission anisotropy"
  ],
  "references": [
    "PAC, 2007, 79, 293. 'Glossary of terms used in photochemistry, 3rd edition (IUPAC Recommendations 2006)' on page 414 (https://doi.org/10.1351/pac200779030293)"
  ],
  "url": "https://mlchart.com/terminology/chemistry/residual-emission-anisotropy/"
}