Please use this identifier to cite or link to this item:
Type: Artigo de periódico
Title: Experimental evidence of the chaotic regime in a salicylate biosensor
Author: Kubota, LT
Kleinke, MU
Mello, C
Bueno, MI
Neto, GD
Abstract: In a biosensor for salicylate, developed using a modified carbon paste electrode with silica gel coated with Meldola's Blue and salicylate hydroxylase, the current time series presented a complex oscillatory pattern, for salicylate and NADH concentrations close to 2.0 X 10(-5) and 3.6 X 10(-5) mol l(-1), respectively. These experimental results suggest that the biosensor response presents chaotic characteristics. The complex temporal behavior of these series was diagnosed as deterministic chaos by measurement of the Grassberger-Procaccia dimension, and the calculation of the first Lyapunov exponent. The value determined for the correlational dimension is lower than 5. These results suggest a coupling of five or six differential equations to describe the redox reactions of the biosensor system.
Country: Holanda
Editor: Elsevier Science Bv
Citation: Chemical Physics Letters. Elsevier Science Bv, v. 264, n. 6, n. 662, n. 666, 1997.
Rights: fechado
Identifier DOI: 10.1016/S0009-2614(96)01391-7
Date Issue: 1997
Appears in Collections:Unicamp - Artigos e Outros Documentos

Files in This Item:
File Description SizeFormat 
WOSA1997WE06800017.pdf328.74 kBAdobe PDFView/Open

Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.