Fig. 6.
The specificity of the AuNP detection system prepared via the UV-NBS method was tested by measuring the cluster formation of AuNPs that are functionalized with PSA specific antibodies; B731M and B728M in the presence of non-specific targets such as A) BSA, B) transferrin, and C) hemoglobin instead of PSA. As expected, cluster formation was not observed, with non-specific protein targets utilizing anti-PSA immobilized AuNPs.