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首页> 外文期刊>ACS Macro Letters >Affinity Partitioning-Induced Self-Assembly in Aqueous Two-Phase Systems: Templating for Polyelectrolyte Microcapsules
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Affinity Partitioning-Induced Self-Assembly in Aqueous Two-Phase Systems: Templating for Polyelectrolyte Microcapsules

机译：两相水相系统中的亲和力分区诱导的自组装：聚电解质微胶囊的模板化

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摘要

Affinity partitioning refers to the preferential dissolution of solute molecules in a particular liquid phase of an immiscible liquid liquid mixture, such as an aqueous two-phase system (ATPS). Affinity partitioning in ATPS is widely used to achieve extraction and purification of biomolecules. However, the potential of applying it to direct the self assembly of solutes into controlled structures has been largely overlooked. Here we introduce the affinity partitioning of polyelectrolytes in ATPS to induce their self-assembly into polyelectrolyte microcapsules. The approach is purely based on the preferential solubility of different polyelectrolytes in different aqueous phases; therefore it has wide applicability and exhibits excellent compatibility with bioactives. The release of encapsulated components can be triggered by changing the pH value or ionic strength of the surrounding environment. The proposed method represents an important advance in fabricating multifunctional materials and inspires new ways to engineer sophisticated structures with hydrophilic macromolecules.
机译：亲和力分配是指溶质分子在不混溶的液体混合物中的特定液相中优先溶解，例如水两相系统（ATPS）。 ATPS中的亲和力分配被广泛用于实现生物分子的提取和纯化。但是，将其用于将溶质自组装成受控结构的潜力已被大大忽略。在这里，我们介绍了ATPS中的聚电解质的亲和性分区，以诱导其自组装成聚电解质微胶囊。该方法纯粹基于不同聚电解质在不同水相中的优先溶解度。因此，它具有广泛的适用性，并且与生物活性物质具有极好的相容性。可以通过改变周围环境的pH值或离子强度来触发封装成分的释放。所提出的方法代表了制造多功能材料的重要进展，并激发了利用亲水大分子设计复杂结构的新方法。

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