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Enzyme-Based T-Flip-Flop Memory System
Kevin MacVittie, Jan Halámek and Evgeny Katz

The enzyme system was used to mimic the T-flip-flop memory unit. In this system the enzyme, horseradish peroxidase, was activated by H2O2 (T-input) oxidizing 3,3′, 5,5′-tetramethylbenzidine and resulting in different optical characteristics of the solution, depending on the initial state of the system. The present system offers a new approach to the realization of the T-flip-flop system which is easy for integration with sophisticated biocatalytic cascades operating as the logic networks performing various computing steps.

Keywords: Biocomputing, enzyme logic, logic gate, binary logic, flip-flop, memory

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