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Using Synthetic Biology to Engineer Living Cells That Interface with Programmable Materials

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A readily programmable, fully reversible shape-switching material.

Matthew K McBride¹, Alina M Martinez², Lewis Cox³

¹Department of Chemical and Biological Engineering, University of Colorado Boulder, 596 UCB, Boulder, CO 80309, USA.

Science Advances

|August 29, 2018

Summary

This summary is machine-generated.

Researchers developed light-activated dynamic covalent chemistry (DCC) for programming liquid crystalline elastomers (LCEs). This method allows for controllable, reversible shape changes in LCEs without irreversible modifications, enabling complex form transformations.

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Area of Science:

Polymer Science
Materials Science
Chemistry

Background:

Liquid crystalline elastomers (LCEs) offer large-scale reversible shape changes.
Current LCE programming methods are intensive and irreversible.
Controllable actuation in LCEs requires advanced programming techniques.

Purpose of the Study:

To implement photoinduced dynamic covalent chemistry (DCC) for programming LCEs.
To enable controllable and reversible shape changes in LCEs.
To explore the versatility of light-activated DCC for LCE applications.

Main Methods:

Synthesis and characterization of DCC-functional LCEs.
Application of light to activate DCC for chemical annealing.
Programming LCEs in various liquid crystalline and isotropic phases.

Main Results:

Successfully implemented light-activated DCC for LCE programming.
Achieved predictable, complex, and fully reversible shape changes.
Demonstrated orthogonality between DCC and LC phase behavior.

Conclusions:

Photoinduced DCC provides a readily shape-programmable approach for LCEs.
This technique allows LCEs to be annealed in any LC phase or isotropic phase.
Enables precise control over LCE shape transformations for diverse applications.