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    Nie zrobili w źródle babola. Autor badań wyjaśnia to tak: Short answer: In a DNA context, PEG is the most hydrophobic cosolute available which does not precipitate DNA. I agree many people say PEG is hydrophilic. What they really mean is that PEG easily dissolves in water. But for example HPLC solvent data (for example https://sites.google.com/site/miller00828/in/solvent-polarity-table) lists dioxane, dimethoxy ethane, and diglyme (essentially very short PEG chains) among the more nonpolar solvents. Since we need a water solution to study DNA, we choose PEG-400, diglyme, and dioxane to be co-solutes. They provide the most hydrophobic environment possible, while also being DNA-compatible. Yes the wording in the press release could be misleading. Maybe they (and we in the manuscript) should be more careful when using “hydrophobic” as a shorthand for “reduced water concentration”/”environment with few water molecules”.
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