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Dynamic control and information processing in the Belousov-Zhabotinsky reaction using a coevolutionary algorithm (2008)
Journal Article
Toth, R., Stone, C., Adamatzky, A., De Lacy Costello, B., & Bull, L. (2008). Dynamic control and information processing in the Belousov-Zhabotinsky reaction using a coevolutionary algorithm. Journal of Chemical Physics, 129(18), 184708. https://doi.org/10.1063/1.2932252

We propose that the behavior of nonlinear media can be controlled dynamically through coevolutionary systems. In this study, a light-sensitive subexcitable Belousov-Zhabotinsky reaction is controlled using a heterogeneous cellular automaton. A checke... Read More about Dynamic control and information processing in the Belousov-Zhabotinsky reaction using a coevolutionary algorithm.

Highly sensitive room temperature sensors based on the UV-LED activation of zinc oxide nanoparticles (2008)
Journal Article
Richards, M., Ratcliffe, N. M., de Lacy Costello, B. P., de Lacy Costello, B., Ewen, R. J., Ratcliffe, N. M., & Richardson, M. (2008). Highly sensitive room temperature sensors based on the UV-LED activation of zinc oxide nanoparticles. Sensors and Actuators B: Chemical, 134(2), 945-952. https://doi.org/10.1016/j.snb.2008.06.055

This study describes novel work on the use of UV-light emitting diodes (LEDs) to enhance the room temperature gas sensitivity of thick film zinc oxide sensors. Sensors based on nanoparticulates of zinc oxide activated with a UV-LED of peak wavelength... Read More about Highly sensitive room temperature sensors based on the UV-LED activation of zinc oxide nanoparticles.

Coevolving cellular automata with memory for chemical computing: Boolean logic gates in the BZ reaction (2008)
Book Chapter
Stone, C., Toth, R., de Lacy Costello, B., Bull, L., & Adamatzky, A. (2008). Coevolving cellular automata with memory for chemical computing: Boolean logic gates in the BZ reaction. In G. Rudolph, T. Jansen, S. M. Lucas, C. Poloni, & N. Beume (Eds.), Parallel Problem Solving from Nature - PPSN X: 10th International Conference Dortmund, Germany, September 13-17, 2008, 579-588. Springer

A comparative study of the analysis of human urine headspace using gas chromatography-mass spectrometry (2008)
Journal Article
Ratcliffe, N. M., De Lacy Costello, B., Smith, S., Smith, S., Burden, H., Persad, R., …Probert, C. S. (2008). A comparative study of the analysis of human urine headspace using gas chromatography-mass spectrometry. Journal of Breath Research, 2(3), 037022. https://doi.org/10.1088/1752-7155/2/3/037022

First-void urine samples were obtained from 24 elderly, asymptomatic men (median age 62.9 years). The headspace above pH adjusted urine samples were extracted using a carboxen/polydimethylsiloxane solid phase micro-extraction fibre and the volatile o... Read More about A comparative study of the analysis of human urine headspace using gas chromatography-mass spectrometry.

An analysis of volatiles in the headspace of the faeces of neonates (2008)
Journal Article
Smith, S., Ratcliffe, N. M., Ewen, R., De Lacy Costello, B., de Lacy Costello, B., Ewen, R., …Smith, S. (2008). An analysis of volatiles in the headspace of the faeces of neonates. Journal of Breath Research, 2(3), 037023. https://doi.org/10.1088/1752-7155/2/3/037023

A gas chromatography/mass spectrometry (GCMS) analysis of the headspace from the faeces of neonates was undertaken to record the volatiles associated with preterm babies on a neonatal unit. The compounds ethanol, acetone, 2-ethyl-1-hexanol, 3-methylb... Read More about An analysis of volatiles in the headspace of the faeces of neonates.

A sensor system for monitoring the simple gases hydrogen, carbon monoxide, hydrogen sulfide, ammonia and ethanol in exhaled breath (2008)
Journal Article
de Lacy Costello, B. (2008). A sensor system for monitoring the simple gases hydrogen, carbon monoxide, hydrogen sulfide, ammonia and ethanol in exhaled breath. Journal of Breath Research, 2(3), 037011. https://doi.org/10.1088/1752-7155/2/3/037011

A sensor array system was constructed incorporating electrochemical sensors for hydrogen, carbon monoxide, hydrogen sulfide and ethanol, a ceramic sensor for total volatiles and a dye-based optical ammonia sensor. The system was calibrated using stan... Read More about A sensor system for monitoring the simple gases hydrogen, carbon monoxide, hydrogen sulfide, ammonia and ethanol in exhaled breath.

The characteristics of novel low-cost sensors for volatile biomarker detection (2008)
Journal Article
Richards, M., Ratcliffe, N. M., De Lacy Costello, B. P. J., de Lacy Costello, B., Ewen, R. J., Ratcliffe, N. M., & Richards, M. (2008). The characteristics of novel low-cost sensors for volatile biomarker detection. Journal of Breath Research, 2(3), 037017. https://doi.org/10.1088/1752-7155/2/3/037017

For breath analyses, volatile detectors capable of sensing extremely low concentrations in the sub-ppm range are required. Novel room temperature sensors were fabricated based on ultraviolet light activation of nanoparticulate metal oxide surfaces us... Read More about The characteristics of novel low-cost sensors for volatile biomarker detection.

A sensor system for monitoring the simple gases hydrogen, carbon monoxide, hydrogen sulfide, ammonia and ethanol in exhaled breath (2008)
Journal Article
Ratcliffe, N. M., Costello, B. P. L., de Lacy Costello, B., Ewen, R. J., & Ratcliffe, N. M. (2008). A sensor system for monitoring the simple gases hydrogen, carbon monoxide, hydrogen sulfide, ammonia and ethanol in exhaled breath. Journal of Breath Research, 2(3), https://doi.org/10.1088/1752-7155/2/3/037011

A sensor array system was constructed incorporating electrochemical sensors for hydrogen, carbon monoxide, hydrogen sulfide and ethanol, a ceramic sensor for total volatiles and a dye-based optical ammonia sensor. The system was calibrated using stan... Read More about A sensor system for monitoring the simple gases hydrogen, carbon monoxide, hydrogen sulfide, ammonia and ethanol in exhaled breath.

On logical gates in precipitating medium: Cellular automaton model (2008)
Journal Article
Costello, B. D. L., Martínez, G. J., Martinez, G. J., Adamatzky, A., & de Lacy Costello, B. (2008). On logical gates in precipitating medium: Cellular automaton model. Physics Letters A, 372(31), 5115-5119. https://doi.org/10.1016/j.physleta.2008.05.087

We study a two-dimensional semi-totalistic binary cell-state cellular automaton, which imitates a reversible precipitation in an abstract chemical medium. The systems exhibits a non-trivial growth and nucleation. We demonstrate how basic computationa... Read More about On logical gates in precipitating medium: Cellular automaton model.

Computation by competing patterns: life rule B2/S2345678 (2008)
Book Chapter
Martinez, G. J., Adamatzky, A., McIntosh, H. V., & de Lacy Costello, B. (2008). Computation by competing patterns: life rule B2/S2345678. In A. Adamatzky, R. Alonso-Sanz, A. Lawniczak, G. J. Martinez, K. Morita, & T. Worsch (Eds.), Automata 2008: Theory and Applications of Cellular Automata, 356-367. Luniver Press

Patterns, originating from different sources of perturbations, propagating in a precipitating chemical medium do usually compete for the space. They sub-divide the medium onto the regions unique for an initial configuration of disturbances. This sub-... Read More about Computation by competing patterns: life rule B2/S2345678.

Towards unconventional computing through simulated evolution: Control of nonlinear media by a learning classifier system (2008)
Journal Article
Bull, L., Budd, A., Stone, C., Uroukov, I., Costello, B. D. L., & Adamatzky, A. (2008). Towards unconventional computing through simulated evolution: Control of nonlinear media by a learning classifier system. Artificial Life, 14(2), 203-222. https://doi.org/10.1162/artl.2008.14.2.203

We propose that the behavior of nonlinear media can be controlled automatically through evolutionary learning. By extension, forms of unconventional computing (viz., massively parallel nonlinear computers) can be realized by such an approach. In this... Read More about Towards unconventional computing through simulated evolution: Control of nonlinear media by a learning classifier system.

Initial results from the use of evolutionary learning to control chemical computers (2008)
Journal Article
Budd, A., Stone, C., Masere, J., Adamatzky, A., de Lacy Costello, B., & Bull, L. (2008). Initial results from the use of evolutionary learning to control chemical computers. International Journal of Unconventional Computing, 4(1), 13-22

The behaviour of pulses of Belousov-Zhabotinski (BZ) reaction diffusion waves can be controlled automatically through machine learning. By extension, a form of chemical network computing, i.e., a massively parallel non-linear Computer, can be realise... Read More about Initial results from the use of evolutionary learning to control chemical computers.

Universal computation with limited resources: Belousov-Zhabotinsky and physarum computers (2008)
Journal Article
Adamatzky, A., De Lacy Costello, B., & Shirakawa, T. (2008). Universal computation with limited resources: Belousov-Zhabotinsky and physarum computers. International Journal of Bifurcation and Chaos, 18(08), 2373-2389. https://doi.org/10.1142/S0218127408021750

Using the examples of an excitable chemical system (the Belousov-Zhabotinsky medium) and plasmodium of Physarum polycephalum we show that universal computation in a geometrically unconstrained medium is only possible when resources (excitability or c... Read More about Universal computation with limited resources: Belousov-Zhabotinsky and physarum computers.

Non-linear media based computers: chemical and neuronal networks through machine learning (2008)
Report
Bull, L., Adamatzky, A., de Lacy Costello, B., Husbands, P., O’Shea, M., Purcell, W., & Taylor, A. (2008). Non-linear media based computers: chemical and neuronal networks through machine learning

There is growing interest in research into the development of hybrid wetware-silicon devices focused on exploiting their potential for 'non-linear computing'. The aim is to harness the as yet only partially understood intricate dynamics of non-linear... Read More about Non-linear media based computers: chemical and neuronal networks through machine learning.