. Author manuscript; available in PMC: 2010 Nov 1.

Published in final edited form as: Anal Chem. 2009 Nov 1;81(21):9129–9134. doi: 10.1021/ac9018022

TABLE 1.

Normal and cancer patient serum ranges, limit of detection (LD), and sensitivity of the immunosensor array

Biomarker	Normal range (ng mL⁻¹)	Cancer range (ng mL⁻¹)	LD (ng mL⁻¹)	Sensitivity (nA mL [ng protein]⁻¹ cm⁻²)	Ref.
PSA	1 – 4	4 – 10	1	44.1	3
PSMA	200 – 300	300 – 650	10	3.9	33
PF-4	2 – 10	10–500	1	49.9	34
IL-6	0.006 – 0.02	0.02 –1	0.03	1668.6	13a