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Gas-Fueled Active Coacervate Droplets With Gas-Programmable Temporal Dynamics.

Xin Liang1, Yulian Zhang1, Qiang Yan1

  • 1State of Key Laboratory of Molecular Engineering of Polymers, Department of Macromolecular Science, Fudan University, Shanghai, China.

Small (Weinheim an Der Bergstrasse, Germany)
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PubMed
Summary
This summary is machine-generated.

Researchers created active coacervate droplets using gas fuels for dynamic adaptation. These droplets exhibit life-like temporal behaviors, opening new avenues for dissipative coacervation.

Keywords:
frustrated lewis pairgas fuelliquid–liquid phase separationnonequilibrium self‐assemblytransient coacervate

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Area of Science:

  • Chemical Engineering
  • Materials Science
  • Biomimetic Chemistry

Background:

  • Synthetic droplets mimic natural membraneless condensates, serving as protocell models.
  • Engineering active droplets with fuel-driven cycles enables control over dynamics far from equilibrium.

Purpose of the Study:

  • To develop a transient coacervate droplet system powered by gas molecules.
  • To explore dynamic adaptation and life-like functions in synthetic systems.

Main Methods:

  • Utilized complementary frustrated Lewis pair polymers (FLPPs) as precursors.
  • Induced transient coacervation via CO2 gas cross-linking through dynamic gas-bridged bonds.
  • Leveraged FLPPs' catalytic activity for CO2 depletion via carboxylation reactions.

Main Results:

  • Demonstrated temporal regulation of coacervation cycles by varying gas parameters and substrate structures.
  • Achieved complex temporal behaviors, including pulse-type dynamics, using dual gas fuels (CO2 and SO2).
  • Showcased intrinsic catalytic dissociation of coacervates through CO2 consumption.

Conclusions:

  • Gas fuels can drive dissipative coacervation, enabling life-like functions in synthetic droplets.
  • Competitive gas binding and tunable catalysis contribute to complex kinetic behaviors.
  • This approach inspires new methods for creating adaptive materials and protocells.