Figure 3From: Characterization of single 1.8-nm Au nanoparticle attachments on AFM tips for single sub-4-nm object pickupTEM micrographs of the modified AFM probe. (a) TEM micrograph of the new AFM probe. (b) Following application of a 2-V pulse to the Au-NP for 32 ns, most of the probes presented no visible Au-NP. After conjugating these probes with a QD, (c) 44% of tips were able to pick up single QDs (red arrow) and (d) 56% of tips were unable to pick up anything.Back to article page