Rate-independent constructs for chemical computation.
basic_science · Level V
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- Record sourced from PubMed, PMID 21738654.
- Also identified by DOI 10.1371/journal.pone.0021414 and PMC identifier PMC2947873.
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Abstract
This paper presents a collection of computational modules implemented with chemical reactions: an inverter, an incrementer, a decrementer, a copier, a comparator, a multiplier, an exponentiator, a raise-to-a-power operation, and a logarithm in base two. Unlike previous schemes for chemical computation, this method produces designs that are dependent only on coarse rate categories for the reactions ("fast" vs. "slow"). Given such categories, the computation is exact and independent of the specific reaction rates. The designs are validated through stochastic simulations of the chemical kinetics.