Journal article
Determination of membrane domain size by fluorescence resonance energy transfer: effects of domain polydispersity and packing
Langmuir, v 23(9), pp 4737-4739
24 Apr 2007
PMID: 17397204
Featured in Collection : UN Sustainable Development Goals @ Drexel
Abstract
Fluorescence resonance energy transfer (FRET) is sensitive to lateral heterogeneity in multicomponent membranes. Recently, we developed a model that enables the extraction of domain size from time-resolved FRET data, and here we examine the effects of domain polydispersity and spatial ordering on the accuracy of domain size determination. The model is applied to Monte Carlo calculations of membranes containing polydisperse domains, either randomly or hexagonally packed for three probe-partitioning schemes and three domain surface coverages. Statistical analysis of the model fitting results supports the conclusion that time-resolved FRET is a robust and precise technique for determining the size of small membrane domains (</=4 times the Förster distance, approximately 20 nm, of the FRET pair), regardless of domain polydispersity and packing. The confidence estimates, presented here in dimensionless domain diameters (independent of the specific FRET pairs), provide a universal tool for domain size estimation in systems containing membrane-bound fluorophores.
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Details
- Title
- Determination of membrane domain size by fluorescence resonance energy transfer: effects of domain polydispersity and packing
- Creators
- Kevin B Towles - Drexel UniversityNily Dan - Drexel University
- Publication Details
- Langmuir, v 23(9), pp 4737-4739
- Publisher
- American Chemical Society; Washington, DC
- Resource Type
- Journal article
- Language
- English
- Web of Science ID
- WOS:000245736400011
- Scopus ID
- 2-s2.0-34248353393
- Other Identifier
- 991019312469104721
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InCites Highlights
Data related to this publication, from InCites Benchmarking & Analytics tool:
- Web of Science research areas
- Chemistry, Multidisciplinary
- Chemistry, Physical
- Materials Science, Multidisciplinary