On logical universality of Belousov-Zhabotinsky vesicles

Belousov-Zhabotinsky (BZ) excitable chemical medium exhibits a rich variety of spatial patterns of excitation. In a sub-excitable light-sensitive chemical medium, an asymmetric disturbing or excitation, causes formation of localized travelling excitation wave-fragments. When two or more wave-fragmen...

Full description

Saved in:
Bibliographic Details
Published inInternational journal of general systems Vol. 43; no. 7; pp. 757 - 769
Main Authors Adamatzky, Andrew, De Lacy Costello, Benjamin, Dittrich, Peter, Gorecki, Jerzy, Zauner, Klaus-Peter
Format Journal Article
LanguageEnglish
Published Abingdon Taylor & Francis 03.10.2014
Taylor & Francis LLC
Subjects
Belousov-Zhabotinsky reaction
Chemicals
collision-based computing
Computational mathematics
wave-fragments
Online AccessGet full text

Cover

More Information
Summary:Belousov-Zhabotinsky (BZ) excitable chemical medium exhibits a rich variety of spatial patterns of excitation. In a sub-excitable light-sensitive chemical medium, an asymmetric disturbing or excitation, causes formation of localized travelling excitation wave-fragments. When two or more wave-fragments collide, they annihilate or merge into new wave-fragment. The wave-fragments can be thought as elementary units of information and their interaction sites as a logical gates. Size and life span of a wave-fragment depends on a level of medium's illumination. By encapsulating BZ reaction into a lipid vesicle, we can manipulate the BZ-derived logical gates. By interpreting wave-fragments as values of Boolean variables, we design a collision-based polymorphic logical gate in BZ vesicles. The gate implements operation xnor for low illumination, and it acts as nor gate for high illumination.
ISSN:0308-1079
1563-5104
DOI:10.1080/03081079.2014.921000