Figure 7From: Nanomechanical characterization of chemical interaction between gold nanoparticles and chemical functional groupsPlot of binding affinity ratio between AuNPs and chemically functionalized surfaces (AuNP- S A and AuNP- S D ). The binding affinity ratios are obtained from experiments such as SEM image, cantilever assay, and LFM. This analysis indicates that DOPA molecules are approximately 1.5 times stronger than amino groups in their adhesion property for the immobilization of AuNPs.Back to article page