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Related Experiment Video

Updated: Jun 25, 2026

Separating Beads and Cells in Multi-channel Microfluidic Devices Using Dielectrophoresis and Laminar Flow

Separating Beads and Cells in Multi-channel Microfluidic Devices Using Dielectrophoresis and Laminar Flow

Published on: February 4, 2011

Elastic microphase separation produces robust bicontinuous materials.

Carla Fernández-Rico¹, Sanjay Schreiber¹, Hamza Oudich²

¹Department of Materials, ETH Zürich, Zürich, Switzerland.

Nature Materials

|October 26, 2023

Summary

This summary is machine-generated.

Elastic microphase separation (EMPS) offers a new method for creating bicontinuous materials. This technique uses matrix stiffness to control microstructure size, providing a robust alternative for bulk fabrication.

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Area of Science:

Materials Science
Polymer Science
Soft Matter Physics

Background:

Bicontinuous microstructures are crucial in natural and synthetic systems.
Existing synthesis methods include arrested phase separation and block copolymer self-assembly.

Purpose of the Study:

Introduce elastic microphase separation (EMPS) as a novel approach for synthesizing bicontinuous microstructures.
Demonstrate EMPS as a thermodynamically robust and versatile method for material fabrication.

Main Methods:

EMPS balances molecular demixing forces with large-scale elasticity.
Materials are formed by supersaturating an elastomeric matrix with a liquid.
Microstructure length scale is tuned by matrix stiffness.

Main Results:

EMPS produces uniform bicontinuous materials with controlled length scales.
The process is a continuous, reversible phase transition without hysteresis.
Fabricated materials exhibit superior mechanical properties, controlled anisotropy, and microstructural gradients.

Conclusions:

EMPS provides a robust and versatile alternative for the bulk fabrication of homogeneous bicontinuous materials.
This method offers precise control over microstructural features and material properties.