SOLGEL ELECTRODE FOR DETECTING BODY ANALYTES

摘要

The present invention provides a hybrid solgel modified electrode. It is anon-enzymatic biosensors that targets bio-molecules present in body fluids. The electrode comprises a base substrate [20] in the form of a bowl and a screen printed conductor [22] layer in the substrate. A hybrid solgel composite [24] is layered to cover the conductor [22] and substrate [20] layer, which is sensitive to body analytes by selective voltammetric oxidation of the bio-molecules. The hybrid solgel composite layer comprises tetraethylorthosilicate (TEOS), methyltriethoxysilane, phenyltriethoxysilane, carbon material, and ferrocene compounds [26, 28]. A method to fabricate the composite layer is also described. The typical analytes considered among the most important for medical diagnosis by analysis of blood, urine and sweat includes glucose, cholesterol, uric acid, creatine, urea and lactate. This electrode can be used in routine medical screening for both sick and healthy people.