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Photochromic molecular implementations of universal computation.

Jack C Chaplin1, Natalio Krasnogor2, Noah A Russell3

  • 1Neurophotonics Lab, Schools of Biology, and Electrical and Electronic Engineering, University of Nottingham, Nottingham NG7 2RD, UK; Institute for Advanced Manufacturing, Faculty of Engineering, University of Nottingham, Nottingham NG7 2RD UK.

Bio Systems
|October 7, 2014
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Summary

This study demonstrates universal computation using NitroBIPS, a biocompatible molecular switch. This breakthrough enables dynamic repurposing of photochromic devices for embedded interfacial computation in biological systems.

Keywords:
Elementary cellular automataMolecular switchesPhotochromic moleculesTuring machinesUnconventional computing

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Area of Science:

  • Unconventional computing
  • Biocompatible materials
  • Molecular electronics

Background:

  • Novel materials and paradigms are explored for unconventional computing.
  • NitroBIPS, a biocompatible molecular switch, has previously been used to implement registers, logic gates, and circuits.
  • NitroBIPS's ability to modify biological processes suggests potential for embedding computation within biological systems.

Purpose of the Study:

  • To demonstrate universal computation using NitroBIPS.
  • To expand on previous proof-of-principle work.
  • To explore the dynamic repurposing of photochromic computational devices.

Main Methods:

  • Implementation of parallel registers using NitroBIPS.
  • Demonstration of Turing machine tapes using parallel registers.
  • Implementation of elementary cellular automata using parallel registers and logic circuits.

Main Results:

  • Universal computation was successfully implemented using NitroBIPS.
  • Both Turing machines and elementary cellular automata were realized using the same hardware.
  • Homogenous photochromic computational devices demonstrated dynamic repurposing without invasive reconfiguration.

Conclusions:

  • NitroBIPS enables universal computation, paving the way for embedded interfacial computation.
  • The dynamic repurposing capability is crucial for flexible computational devices.
  • This work is a significant step towards realizing computation in biological systems and other unconventional environments.