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One of the major limitations for Atomic Force Microscopy (AFM) based nanoparticle pushing is that AFM only has one sharp tip as the end-effector. The interaction force between the nanoparticle and the tip is applied through a single point, which often leads the AFM tip to slip-away from the nanoparticle due to their small touch area. Then several minutes is needed to relocate the missed nanoparticle...
Bovine insulin molecular aggregates, a nano-scale bio-entity, has been manipulated using P-NUVO (programmable nanomanipulation using vibration-mode operation AFM) method. This method uses the amplitude of an AFM cantileverpsilas vibration as real-time feedback information to detect the boundary of the nano-entities under manipulation. This amplitude signal changes as a function of the distance between...
A novel method is developed to effectively manipulating nano-entities to predefined positions and orientations autonomously. In this method, the nanomanipulation process is programmed by planning and executing the AFM tip's movement, and the amplitude of probe-tip's vibration is measured in real-time to detect the boundary of the nano-entities under manipulation - which will change as a function of...
A novel method based on vibration-mode of the atomic force microscope (AFM) for nanoimaging and nanomanipulation is introduced in this paper. With this approach, the amplitude of OMSPV (opto-electronic measurement signal of probe vibration) can be used as a feedback signal to detect and control the operation state under vibration-mode. By controlling the amplitude of AFM probe, the tip-sample interaction...
Nanomanipulation and nanoimaging with Atomic Force Microscopes (AFM) is a popular technique for nano-manufacturing. However, under ambient conditions without stringent environment control, nanomanipulation tasks are difficult to complete because various system drift can cause uncertainties of the spatial relationship between the AFM probe tip and the nano-entities to be manipulated. Researchers have...
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