Year: 2025
Type: article
Abstract: Molecular rotors are molecules that form twisted conformations upon photoexcitation, with their fluorescence relaxation time serving as a measure of viscosity. They have been used to estimate the viscosity of biological and other membranes, but yield higher values than more common methods. We show that the rotor's relaxation time is influenced by a combination of membrane viscosity and interleaflet friction, and rationalize the existing discrepancy among methods.
Source: Physical Review Fluids
Institutions: Harvard University, Tel Aviv University, Princeton University
Language: English
Subfield: Molecular Biology
Domain: Life Sciences
Open Access status: green
Funder: National Science Foundation
OpenAlex ID: W4409540802