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- W4387360334 abstract "Solutions of macromolecules can undergo liquid-liquid phase separation to form droplets with ultralow surface tension. Droplets with such low surface tension wet and spread over common surfaces such as test tubes and microscope slides, complicating in vitro experiments. The development of a universal super-repellent surface for macromolecular droplets has remained elusive because their ultralow surface tension requires low surface energies. Furthermore, the nonwetting of droplets containing proteins poses additional challenges because the surface must remain inert to a wide range of chemistries presented by the various amino acid side chains at the droplet surface. Here, we present a method to coat microscope slides with a thin transparent hydrogel that exhibits complete dewetting (contact angles θ ≈ 180°) and minimal pinning of phase-separated droplets in aqueous solution. The hydrogel is based on a swollen matrix of chemically cross-linked polyethylene glycol diacrylate of molecular weight 12 kDa (PEGDA), and can be prepared with basic chemistry laboratory equipment. The PEGDA hydrogel is a powerful tool for in vitro studies of weak interactions, dynamics, and the internal organization of phase-separated droplets in aqueous solutions." @default.
- W4387360334 created "2023-10-06" @default.
- W4387360334 creator A5019829395 @default.
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- W4387360334 date "2023-10-05" @default.
- W4387360334 modified "2023-10-18" @default.
- W4387360334 title "Surface Passivation Method for the Super-repellence of Aqueous Macromolecular Condensates" @default.
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- W4387360334 doi "https://doi.org/10.1021/acs.langmuir.3c01886" @default.
- W4387360334 hasPubMedId "https://pubmed.ncbi.nlm.nih.gov/37797324" @default.