Pattern formation in reaction-diffusion enzyme transistor circuits

Masahiko Hiratsuka, Takafumi Aoki, Tatsuo Higuchi

Research output: Contribution to journalArticlepeer-review

10 Citations (Scopus)


This paper explores a possibility of constructing massively parallel molecular computing systems using molecular electronic devices called enzyme transistors. The enzyme transistor is, in a sense, an artificial catalyst which selects a specific substrate molecule and transforms it into a specific product. Using this primitive Junction, various active continuous media for signal transfer/processing can be realized. Prominent examples discussed in this paper are: (i) Turing pattern formation and (ii) excitable wave propagation in a two-dimensional enzyme transistor array. This paper demonstrates the potential of enzyme transistors for creating reaction-diffusion dynamics that performs useful computations in a massively parallel fashion.

Original languageEnglish
Pages (from-to)1809-1817
Number of pages9
JournalIEICE Transactions on Fundamentals of Electronics, Communications and Computer Sciences
Issue number9
Publication statusPublished - 1999 Jan 1


  • Molecular computing
  • Molecular devices
  • Nonlinear signal processing
  • Parallel processing
  • Pattern formation
  • Reaction-diffusion dynamics

ASJC Scopus subject areas

  • Signal Processing
  • Computer Graphics and Computer-Aided Design
  • Electrical and Electronic Engineering
  • Applied Mathematics


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