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Microfluidic Pneumatic Cages: A Novel Approach for In-chip Crystal Trapping, Manipulation and Controlled Chemical Treatment

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Fluid mediated communication among flexible micro-posts in chemically reactive solutions.

Moslem Moradi¹, Oleg E Shklyaev¹, Wenzheng Shi²

¹Department of Chemical Engineering, University of Pittsburgh, Pittsburgh, PA, 15261, USA. balazs@pitt.edu.

Materials Horizons

|October 17, 2024

Summary

Synthetic materials mimic biological communication using chemical reactions to create self-driven fluid flow and coordinated motion. This system enables autonomous remote control without external electronics, relying solely on chemical reactants.

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Generating Controlled, Dynamic Chemical Landscapes to Study Microbial Behavior

Generating Controlled, Dynamic Chemical Landscapes to Study Microbial Behavior

Published on: January 31, 2020

Area of Science:

Biomimetic materials science
Soft robotics
Chemical engineering

Background:

Biological communication relies on enzymatic reactions within fluid-filled, elastic bio-channels.
Fluid flow, driven by chemical to mechanical energy conversion, interacts with channel walls, creating feedback loops.
Synthetic materials can be engineered to replicate these complex chemo-hydro-mechanical feedback systems.

Purpose of the Study:

To computationally model chemo-hydro-mechanical feedback in biomimetic micro-post arrays.
To investigate the emergent cooperative motion and communication capabilities of these synthetic systems.
To explore autonomous remote control in synthetic materials without external power sources.

Main Methods:

Development of computational models for micro-post arrays in fluid-filled chambers.
Simulation of enzymatic reactions triggering chemo-hydro-mechanical feedback.
Analysis of fluid-structure interactions and emergent collective behaviors.

Main Results:

Enzymatic activation generated diverse long-range cooperative motion, including self-oscillations and non-reciprocal interactions.
The micro-post array demonstrated signal propagation, interpretation, and system-wide coordinated responses.
Autonomous remote control was achieved, functioning solely with chemical reactants.

Conclusions:

Engineered biomimetic materials can exhibit complex, self-driven communication and regulation through integrated feedback loops.
This approach offers a novel pathway for creating autonomous synthetic systems for signal processing and remote control.
The findings highlight the potential for developing electronic-free, chemically powered smart materials.