Figure 4.
Calibration curves for ELISA tip colorimetric multiplexed detection of (A) PSA, (B) VEGF, (C) IGF-1, and ((D) CD-14. Absorbance was measured at 450 nm in a plate reader (n = 4).
Calibration curves for ELISA tip colorimetric multiplexed detection of (A) PSA, (B) VEGF, (C) IGF-1, and ((D) CD-14. Absorbance was measured at 450 nm in a plate reader (n = 4).