Long-range attraction of particles adhered to lipid vesicles.
basic_science · Level V
Where this comes from
- Record sourced from PubMed, PMID 27575176.
- Also identified by DOI 10.1103/PhysRevE.94.012604.
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Abstract
Many biological systems fold thin sheets of lipid membrane into complex three-dimensional structures. This microscopic origami is often mediated by the adsorption and self-assembly of proteins on a membrane. As a model system to study adsorption-mediated interactions, we study the collective behavior of micrometric particles adhered to a lipid vesicle. We estimate the colloidal interactions using a maximum likelihood analysis of particle trajectories. When the particles are highly wrapped by a tense membrane, we observe strong long-range attractions with a typical binding energy of 150k_{B}T and significant forces extending a few microns.