Abstract
In this paper, we present novel electrical microfluidic biosensors with artificially-made recognition elements for detection of Neutrophil gelatinase-associated lipocalin (NGAL) protein, which is a biomarker of acute renal failure (AKI). By using molecularly-imprinted polymer electricpolimerized on electrode, we can identify different concentration of NGAL protein. The results shows that in the specific region of current density and voltage, the polymerized electrodes can distinguish different concentrations of protein well. It can also recognize concentrations in ppb level(50~600 ng/mL). Also, the performance of sweeping frequency reveals low frequency can show more capacitance difference in all concentration, may promote the detect efficiency.