Microfluidic Droplet-Based Tool to Determine Phase Behavior of a Fluid System with High Composition Resolution

Blake J. Bleier, Shelley L. Anna, Lynn M. Walker

Research output: Contribution to journalArticlepeer-review

12 Scopus citations

Abstract

The goal of this work is to develop a simple microfluidic approach to characterizing liquid-liquid phase behavior in complex aqueous mixtures of organics and salts. We take advantage of the permeability of inexpensive microfluidic devices to concentrate aqueous solutions on chip. We demonstrate a technique that allows phase boundaries to be identified with high compositional resolution and small sample volumes. Droplets of single phase samples are produced on-chip and concentrated in the device beyond the phase boundary line to map system phase behavior. Results are demonstrated on ammonium sulfate and organic (poly(ethylene oxide)) aqueous solutions and compared with macroscopic and literature results.

Original languageEnglish (US)
Pages (from-to)4067-4076
Number of pages10
JournalJournal of Physical Chemistry B
Volume122
Issue number14
DOIs
StatePublished - Apr 12 2018
Externally publishedYes

Bibliographical note

Publisher Copyright:
© 2018 American Chemical Society.

Fingerprint

Dive into the research topics of 'Microfluidic Droplet-Based Tool to Determine Phase Behavior of a Fluid System with High Composition Resolution'. Together they form a unique fingerprint.

Cite this