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Related Concept Videos

Two Components: Liquid–Liquid Systems01:27

Two Components: Liquid–Liquid Systems

A pressure-composition phase diagram explicitly describes the behavior of an ideal solution of two volatile liquids under varying pressures and compositions. A pressure-composition diagram has two main curves. The bubble point curve represents the plot of pressure versus liquid mole fraction. It indicates the pressure at which the first bubble of vapor forms from the liquid phase as the system pressure decreases.The dew point curve is the pressure versus vapor mole fraction. It indicates the...
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Cell Co-culture Patterning Using Aqueous Two-phase Systems
10:11

Cell Co-culture Patterning Using Aqueous Two-phase Systems

Published on: March 26, 2013

Microfluidics with aqueous two-phase systems.

Steffen Hardt1, Thomas Hahn

  • 1Center of Smart Interfaces, TU Darmstadt, Petersenstr. 32, D-64287 Darmstadt, Germany. hardt@csi.tu-darmstadt.de

Lab on a Chip
|September 8, 2011
PubMed
Summary
This summary is machine-generated.

Microfluidic systems leverage aqueous two-phase systems (ATPSs) for efficient biological material separation. This research reviews flow patterns, phase recovery, mass transfer, and droplet microflows for advanced applications.

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Area of Science:

  • Biotechnology
  • Microfluidics
  • Separation Science

Background:

  • Aqueous two-phase systems (ATPSs) are traditionally used for biological material separation and purification.
  • Microfluidic implementations offer flow-through processes, replacing traditional batch methods.
  • Research explores ATPSs in microfluidic setups for enhanced separation and purification.

Purpose of the Study:

  • To provide an overview of research activities utilizing ATPSs in microfluidic systems.
  • To discuss stability, phase recovery, mass transfer, and applications of microfluidic ATPSs.
  • To review droplet microflows of ATPSs for diverse applications.

Main Methods:

  • Co-flowing immiscible aqueous phases in microchannels for continuous separation.
  • Analysis of diffusive mass transfer and partitioning between phases.
  • Application of electric fields to accelerate transport and enable size-selective filtration.
  • Generation and manipulation of ATPS droplets in microfluidic devices.

Main Results:

  • Stable flow patterns and efficient phase recovery in microfluidic ATPSs are achievable.
  • Diffusive mass transfer and partitioning are key for sample separation.
  • Electric fields enhance transport and can create size-selective interfaces.
  • Droplet microflows demonstrate versatility in separation, purification, and surface patterning.

Conclusions:

  • Microfluidic ATPSs offer a powerful platform for biological separations and purification.
  • Flow stability, mass transfer, and electric field effects are critical parameters.
  • Droplet-based microfluidic ATPSs expand applications in biological research and material science.