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  • Logical and arithmetic circuits in Belousov-Zhabotinsky encapsulated disks.

Logical and arithmetic circuits in Belousov-Zhabotinsky encapsulated disks.

Physical review. E, Statistical, nonlinear, and soft matter physics (2011-12-21)
Julian Holley, Ishrat Jahan, Ben De Lacy Costello, Larry Bull, Andrew Adamatzky
ABSTRACT

Excitation waves on a subexcitable Belousov-Zhabotinsky (BZ) substrate can be manipulated by chemical variations in the substrate and by interactions with other waves. Symbolic assignment and interpretation of wave dynamics can be used to perform logical and arithmetic computations. We present chemical analogs of elementary logic and arithmetic circuits created entirely from interconnected arrangements of individual BZ encapsulated cell-like disk. Interdisk wave migration is confined in carefully positioned connecting pores. This connection limits wave expansion and unifies the input-output characteristic of the disks. Circuit designs derived from numeric simulations are optically encoded onto a homogeneous photosensitive BZ substrate.

MATERIALS
Product Number
Brand
Product Description

Supelco
Density Standard 1251 kg/m3, H&D Fitzgerald Ltd. Quality
Sigma-Aldrich
Sodium bromide, BioXtra, ≥99.0%
Sigma-Aldrich
Sodium bromide, ≥99.99% trace metals basis
Sigma-Aldrich
Sodium bromide, BioUltra, ≥99.0% (AT)
Sigma-Aldrich
Sodium bromide, ACS reagent, ≥99.0%
Sigma-Aldrich
Sodium bromide, ReagentPlus®, ≥99%