A MINIATURISED SENSOR BASED ON MICROFLUIDIC PLATFORM FOR CAFFEINE DETECTION FROM FOOD SAMPLES

摘要

The present invention provides a low cost miniaturized sensor based on microfluidic platform for caffeine detection from food samples. The device consists of inter-digitized (IDEs) gold electrode sensor with a PMMA well on top for the sample volume requirement in micro liters. It is fabricated using conventional photolithography techniques in a two step process. The prepared sensor has excellent sensitivity for CAF samples, with a detection limit of 0.01 mM L-1. The final product can be formulated in the form of a kit that can be utilized fof quantification of various non-toxic caffeine beverages.