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Droplets in underlying chemical communication recreate cell interaction behaviors
Agustin D Pizarro1, Claudio L A Berli2, Galo J A A Soler-Illia1
1Instituto de Nanosistemas, UNSAM-CONICET, Av. 25 de Mayo 1021, 1650 San Martín, Buenos Aires, Argentina.
Nature Communications
|June 1, 2022
Summary
Intelligent droplet interactions emerge on nanoporous films, mimicking cellular behaviors like attack and engulfment. This breakthrough enables autonomous microfluidic systems and protocell models.
Area of Science:
- Physical Chemistry
- Biophysics
- Microfluidics
Background:
- Living systems exhibit sensory-motor interactions, but replicating "recognize and attack" in inanimate systems is difficult.
- Controlling droplet dynamics on surfaces is crucial for microengineering and biomedical applications.
Purpose of the Study:
- To investigate intelligent inter-droplet interactions on nanoporous thin films.
- To explore emergent cellular-like behaviors in a simple two-droplet system.
Main Methods:
- Utilizing a nanoporous thin film surface to host droplet interactions.
- Observing and analyzing droplet shape instability and projection dynamics.
- Investigating the role of nanopore-driven communication and chemical activity.
Main Results:
- Demonstrated chemospecific stimulus-response inter-droplet autonomous operation.
- Observed an attacker-victim-like non-reciprocal interaction leading to shape instability and selective coupling.
- Identified droplet projection resembling pseudopod emission and phagocytic-like functions.
Conclusions:
- Basic cellular phenomenologies can emerge from a simple two-droplet framework on nanoporous surfaces.
- Nanopore-driven communication and chemical activity are key to the observed intelligent interactions.
- This research advances microfluidic smart robotics and origin-of-life protocell models.
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