Monolithic Blood Analysis Micro-Biosensor


A new micro biosensor has been proposed and fabricated for the measurement of glucose concentration in whole blood. The proposed micro biosensor has been monolithically integrated with enzymatic metal microelectrode array in a micromachined chamber attached to a microsyringe. The fabricated micro biosensor has a high sensitivity of 470nA/cm2 mM for detecting glucose levels in a wide linear range of 0~50mM in photassium phosphate buffer solution (pH7.0).

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Figure 1. (a) Schematic diagram of the proposed micro biosensor (b) microphotograph of the fabricated micro biosensor.

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Figure 2. (a) SEM picture of the fabricated micro biosensor (b) calibration curve of the fabricated micro biosensor.