Cell membranes do not spontaneously fuse when touching due to hydration forces and electrostatic repulsion
the verdict
SUPPORTED
the evidence backs this
confidence 83/100
Cell membranes and vesicles are prevented from spontaneously fusing upon contact primarily due to stabilizing forces such as hydration repulsion and electrostatic barriers.
Evidence for · 5
Enhancement of viral fusion by nonadsorbing polymers.
1993 · cited by 17
Discusses how hydration repulsion forces act as a barrier that must be overcome for membrane fusion to proceed.
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More for · 4
Comparative Study of Lipid- and Polymer-Supported Membranes Obtained by Vesicle Fusion
2022 · cited by 3
Ascribes the inability of certain supported polymer membrane patches to fuse spontaneously to hydration repulsion forces acting between their edges.
A Comparative Study of the Effects of Cholesterol and Lanosterol on Hydrated Phosphatidylethanolamine Assemblies: Focusing on Physical Parameters Related to Membrane Fusion
2025 · cited by 2
Notes that sterols enhance short-range repulsive hydration forces which regulate membrane properties and fusion.
Quantifying the Activation Barrier for Phospholipid Monolayer Fusion Governing Lipid Droplet Coalescence
2025 · cited by 1
Incorporates hydration repulsion into a continuum fusion model as part of the energy barrier governing membrane coalescence.
Influence of lipid bilayer head group polarity on micelle behavior and surfactant transfer: a molecular dynamics simulation study.
2025 · cited by 1
Demonstrates that interfacial water and head group polarity create an energy barrier that prevents spontaneous transfer or interaction.