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Information Processing with Chemical Excitations—from Instant Machines to an Artificial Chemical Brain
J. Gorecki and J.N. Gorecka

Logical operations can be performed by a nonlinear chemical medium. We illustrate it considering three examples showing potential applications of excitable chemical systems for information processing.We demonstrate that the shortest path in a labyrinth can be found using the natural properties of pulses propagating in a spatially distributed reaction-diffusion medium. Considering a nonhomogeneous medium composed of regions with different excitability levels we can construct chemical devices that perform complex logical functions as, for example, counting. Finally we discuss the perspectives of creating networks composed of chemical “neurons ”and programmable signal channels.

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