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- W4220921879 abstract "Liquid-liquid phase separation underlies the formation of biological condensates. Physically, such systems are microemulsions that in general have a propensity to fuse and coalesce; however, many condensates persist as independent droplets in the test tube and inside cells. This stability is crucial for their function, but the physicochemical mechanisms that control the emulsion stability of condensates remain poorly understood. Here, by combining single-condensate zeta potential measurements, optical microscopy, tweezer experiments, and multiscale molecular modeling, we investigate how the nanoscale forces that sustain condensates impact their stability against fusion. By comparing peptide-RNA (PR25:PolyU) and proteinaceous (FUS) condensates, we show that a higher condensate surface charge correlates with a lower fusion propensity. Moreover, measurements of single condensate zeta potentials reveal that such systems can constitute classically stable emulsions. Taken together, these results highlight the role of passive stabilization mechanisms in protecting biomolecular condensates against coalescence." @default.
- W4220921879 created "2022-04-03" @default.
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- W4220921879 date "2022-01-10" @default.
- W4220921879 modified "2023-10-17" @default.
- W4220921879 title "Surface Electrostatics Govern the Emulsion Stability of Biomolecular Condensates" @default.
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- W4220921879 doi "https://doi.org/10.1021/acs.nanolett.1c03138" @default.
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- W4220921879 hasPublicationYear "2022" @default.
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