Figure 8: Cyclic Voltammetry the GC electrode in the pressence of 0.5mM Fe (CN) 6 -3/ Fe (CN)6 -3 (scan rate 100.0 mVs-1) ;(a) bare GC electrode (b) after functionalization with SWCNT-COOH (c) after immobilization of SWCNT-antibody (d) after the formation of antigen-antibody complex.