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Computing with motile bio-agents

Nicolau, Dan V. Jr, Burrage, Kevin, & Nicolau, Dan V. (2006) Computing with motile bio-agents. In Nicolau, Dan V. (Ed.) Biomedical Applications of Micro- and Nanoengineering III, SPIE, Adelaide, SA, 64160S-1-64160S-9.

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Abstract

We describe a model of computation of the parallel type, which we call 'computing with bio-agents', based on the concept that motions of biological objects such as bacteria or protein molecular motors in confined spaces can be regarded as computations. We begin with the observation that the geometric nature of the physical structures in which model biological objects move modulates the motions of the latter. Consequently, by changing the geometry, one can control the characteristic trajectories of the objects; on the basis of this, we argue that such systems are computing devices. We investigate the computing power of mobile bio-agent systems and show that they are computationally universal in the sense that they are capable of computing any Boolean function in parallel. We argue also that using appropriate conditions, bio-agent systems can solve NP-complete problems in probabilistic polynomial time.

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ID Code: 45992
Item Type: Conference Paper
Keywords: parallel type, protein molecular motors, mobile bio-agent
DOI: 10.1117/12.707691
ISBN: 9780819465245
Subjects: Australian and New Zealand Standard Research Classification > CHEMICAL SCIENCE (030000) > MEDICINAL AND BIOMOLECULAR CHEMISTRY (030400)
Divisions: Past > QUT Faculties & Divisions > Faculty of Science and Technology
Past > Schools > Mathematical Sciences
Deposited On: 15 Sep 2011 03:38
Last Modified: 15 Sep 2011 03:41

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