Journal: Advanced Science

Article Title: 2D and 3D Self‐Assembly of Fluorine‐Free Pillar‐[5]‐Arenes and Perfluorinated Diacids at All‐Aqueous Interfaces

doi: 10.1002/advs.202401807

Figure Lengend Snippet: An aqueous two‐phase system, combined with microfluidics, can be used to template the assembly of pillar‐[5]‐arenes and perfluorinated diacids. a) A schematic of a glass‐capillary flow‐focusing microfluidics device that can create phase‐separated dextran droplets containing the P5, and the subsequent addition of PFDA to stable droplets then yields vesicle‐like structures at the droplet interface. b) After the droplet production and addition of perfluorinated diacid, the droplets do not show coalescence and remain separated even when in contact with each other, and (bʹ) corresponding epifluorescence micrographs show that fluorescently tagged dextran remains sequestered within the shell. Scale bars in (a) 100 µm; in (b) and (bʹ) 200 µm.

Article Snippet: A number of these capillaries and some square outer capillaries (1D 1.0 mm, Vitrotubes, CM Scientific Ltd.) were hydrophobized by plasma cleaning for 60 s and immersion in a solution of 1% v/v 1,2‐dimethyloctadecyl‐3‐aminopropylsilane (DMOAP, 42% in methanol, Sigma Aldrich) in water for 15 min with gentle shaking before being thoroughly rinsed with MilliQ water (resistivity 18.2 MΩ cm) and dried in an oven at 105 °C overnight.

Techniques: