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Issue 9, 2017

Chemical memory with states coded in light controlled oscillations of interacting Belousov–Zhabotinsky droplets

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Abstract

The information storing potential of droplets, in which an oscillatory, photosensitive Belousov–Zhabotinsky (BZ) reaction proceeds, is investigated experimentally. We consider coupled oscillations in pairs and triplets of droplets. Droplets are surrounded by a solution of lipids in decane. Oscillations synchronize via diffusion of an activator through a lipid bilayer. The reaction in each droplet can be individually controlled by illumination with blue light through an optical fiber. We found that in pairs of BZ droplets, only the in-phase and the forcing oscillation modes are stable, however switching between these modes is not reliable. In triplets of droplets, switching between two different, stable rotational modes (clockwise and anticlockwise) can be easily implemented. Therefore, such a system is an excellent candidate for a light controlled, reliable, one bit chemical memory unit.

Graphical abstract: Chemical memory with states coded in light controlled oscillations of interacting Belousov–Zhabotinsky droplets

Article information


Submitted
01 Nov 2016
Accepted
07 Feb 2017
First published
07 Feb 2017

Phys. Chem. Chem. Phys., 2017,19, 6519-6531
Article type
Paper

Chemical memory with states coded in light controlled oscillations of interacting Belousov–Zhabotinsky droplets

K. Gizynski and J. Gorecki, Phys. Chem. Chem. Phys., 2017, 19, 6519 DOI: 10.1039/C6CP07492H

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