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From chemical soup to computing circuit: transforming a contiguous chemical medium into a logic gate network by modulating its external conditions.


ABSTRACT: It has been shown that it is possible to transform a well-stirred chemical medium into a logic gate simply by varying the chemistry's external conditions (feed rates, lighting conditions, etc.). We extend this work, showing that the same method can be generalized to spatially extended systems. We vary the external conditions of a well-known chemical medium (a cubic autocatalytic reaction-diffusion model), so that different regions of the simulated chemistry are operating under particular conditions at particular times. In so doing, we are able to transform the initially uniform chemistry, not just into a single logic gate, but into a functionally integrated network of diverse logic gates that operate as a basic computational circuit known as a full-adder.

SUBMITTER: Egbert M 

PROVIDER: S-EPMC6769298 | biostudies-literature | 2019 Sep

REPOSITORIES: biostudies-literature

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From chemical soup to computing circuit: transforming a contiguous chemical medium into a logic gate network by modulating its external conditions.

Egbert Matthew M   Gagnon Jean-Sébastien JS   Pérez-Mercader Juan J  

Journal of the Royal Society, Interface 20190911 158


It has been shown that it is possible to transform a well-stirred chemical medium into a logic gate simply by varying the chemistry's external conditions (feed rates, lighting conditions, etc.). We extend this work, showing that the same method can be generalized to spatially extended systems. We vary the external conditions of a well-known chemical medium (a cubic autocatalytic reaction-diffusion model), so that different regions of the simulated chemistry are operating under particular conditi  ...[more]

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