Fluorescence Sensing Platforms for Epinephrine Detection Based on Low Temperature Cofired Ceramics

Fluorescence Sensing Platforms for Epinephrine Detection Based on Low Temperature Cofired Ceramics

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A novel fluorescence-sensing pathway for epinephrine (EP) detection was investigated.The ceramic-based miniature biosensor was developed through the immobilization of an enzyme (laccase, tyrosinase) on a polymer—poly-(2,6-di([2,2′-bithiophen]-5-yl)-4-(5-hexylthiophen-2-yl)pyridine), based on low temperature cofired ceramics joico lumishine 10n technology (LTCC).The detection procedure was based on the oxidation of the substrate, i.e.

, in the presence of the enzyme.An alternative enzyme-free system utilized the formation of a colorful complex between Fe2+ ions and epinephrine molecules.With the optimized conditions, the analytical performance illustrated high sensitivity and selectivity in a broad linear range with a detection limit of 0.14−2.

10 nM.Moreover, the strategy was successfully used for an EP tfh sarees with price injection test with labeled pharmacological samples.