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Towards life in hydrocarbons: aggregation behaviour of “reverse” surfactants in cyclohexane

机译:迈向碳氢化合物的生命:“反向”表面活性剂在环己烷中的聚集行为

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Unconventional life forms based on membranes able to self-assemble in hydrocarbons instead of water might in principle exist in the hydrocarbon-rich environments on Earth and in the methane lakes of Saturn's moon, Titan. This reversed paradigm for life would require that these membranes should be constituted of “reverse” surfactants. We here describe the synthesis of reverse amphiphilic molecules with a geometry similar to conventional surfactants but with an opposite topological configuration: lipophilic heads and lipophobic tails. Their self-assembly in cyclohexane was studied by 1H 2D DOSY-NMR and SAXS. We present experimental evidence of the self-assembly of these reverse surfactants to yield typical micelles in a hydrocarbon solvent.
机译:原则上,基于能够在碳氢化合物而非水中自我组装的膜的非常规生命形式,可能存在于地球上土星和土卫六卫星土卫六的甲烷湖中富含碳氢化合物的环境中。生命的这种反向范式将要求这些膜应由“反向”表面活性剂构成。我们在这里描述了反向两亲分子的合成,其几何形状与常规表面活性剂相似,但拓扑结构相反:亲脂性头部和疏脂性尾部。用 1 H 2D DOSY-NMR和SAXS研究了它们在环己烷中的自组装。我们提供了这些反向表面活性剂自组装以在烃类溶剂中产生典型胶束的实验证据。

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