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Synthetic versions might be exploited to perform photochemical switching functions in molecular computing and sensing technologies, or in bioactive molecules including drugs.

“For many years, people thought molecular computing involved taking what we do in silicon and mapping that onto molecules, which resulted in these elaborate Rube Goldberg devices,” Rubenstein says.

Next-generation molecular, computing, telemetry and observing technologies must also be developed and applied.

But molecular computing has mass production issues because — surprise! — molecules are teeny-tiny.

Tom Ran, a member of the research group that in 2009 , told BBC News that the DNA computer of the new work exhibited more "digital behaviour" than other molecular computing approaches and thus that "it may be more robust, reliable and scalable".