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|
|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.|
|Editor:||Elsevier Science Bv|
|Citation:||Chemical Physics Letters. Elsevier Science Bv, v. 264, n. 6, n. 662, n. 666, 1997.|
|Appears in Collections:||Unicamp - Artigos e Outros Documentos|
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.