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Comparison of the regeneration between aptamer-based biosensor and antibody-based biosensor by EDTA. IgE (100 μg/L) was applied to the gold surface for detection. The regeneration reagent was 30 mmol/L EDTA solution. The relative frequency shift (%) was the frequency shift measured relative to the response for the first measurement. The cycles of x-axis mean the number of the regeneration test.
