Fig. 6From: Complementation of ELISA and an Interdigitated Electrode Surface in Gold Nanoparticle Functionalization for Effective Detection of Human Blood Clotting Defectsa Detection of FIX in human serum. Human serum was diluted from 1:20 to 1:1280. FIX was detected in human serum diluted 1:640 (figure inside indicates the schematic representation). b Spiking of FIX (0.125 to 8 nM) into 1:640 dilution of human serum. With increments in the FIX concentration, the absorbance was increased. Figure insets display the visual resultsBack to article page