Water-in-Water Pickering Emulsion Stabilized by Polydopamine Particles and Cross-Linking.,Biomacromolecules

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Water-in-Water Pickering Emulsion Stabilized by Polydopamine Particles and Cross-Linking.
Biomacromolecules ( IF 5.5 ) Pub Date : 2018-11-15 , DOI: 10.1021/acs.biomac.8b01301
Jianrui Zhang ₁ , Jongkook Hwang ₁ , Markus Antonietti ₁ , Bernhard V K J Schmidt ₁

Affiliation

All aqueous multiphase systems have attracted significant attention recently, in particular water-in-water Pickering emulsions. In here, polydopamine nanoparticles (PDP) are investigated as stabilizers for dextran and poly(ethylene glycol) (PEG)-based aqueous emulsions. Remarkably, stable emulsions are obtained from the all-biocompatible materials that can be broken either via dilution or surfactant addition. Further cross-linking of PDP via poly(acrylic acid) and carbodiimide strengthens the stability of emulsion droplets in a colloidosome-like structure. After cross-linking, demulsification via dilution or surfactant addition was largely hindered. The PDP-mediated formation of all aqueous emulsions is expected to be generalized to different types of water-in-water emulsions with other polymers and offers new opportunities in surface modification as well as microencapsulation.

中文翻译：

聚多巴胺颗粒和交联稳定的水包水采摘乳剂。

所有水性多相体系最近都引起了极大的关注，特别是水包水Pickering乳液。在这里，研究了聚多巴胺纳米颗粒（PDP）作为基于葡聚糖和聚乙二醇（PEG）的水性乳液的稳定剂。值得注意的是，稳定的乳液是从所有生物相容性材料中获得的，这些材料可以通过稀释或添加表面活性剂来分解。PDP通过聚丙烯酸和碳二亚胺的进一步交联，增强了胶体状结构中乳液液滴的稳定性。交联后，大大阻碍了通过稀释或添加表面活性剂进行的破乳。

更新日期：2018-11-05

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