Nanofluidic chromatography using a vibrating atomic force microscope tip

Reconstitution of phospholipid bilayer by an atomic force microscope tip.

Nuno C. Santos,* Evgeny Ter-Ovanesyan, Joseph A. Zasadzinski, and Miguel A. R. B. Castanho* Centro de Quı́mica-Fı́sica Molecular, Complexo I, Instituto Superior Técnico, Lisboa, Portugal; Departamento de Quı́mica e Bioquı́mica, Faculdade de Ciências da Universidade de Lisboa, Lisboa, Portugal; and Department of Chemical and Nuclear Engineering, University of California, Santa Barbara, California 93...

Tip-Jump Response of an Amplitude-Modulated Atomic Force Microscope

The dynamic behaviors of an Atomic Force Microscope are of interest, and variously unpredictable phenomena are experimentally measured. In practical measurements, researchers have proposed many methods for avoiding these uncertainties. However, causes of these phenomena are still hard to demonstrate in simulation. To demonstrate these phenomena, this paper claims the tip-jump motion is a predic...

Scanning Motions of an Atomic Force Microscope Tip in Water

Accessing Time-Varying Forces on the Vibrating Tip of the Dynamic Atomic Force Microscope to Map Material Composition

In dynamic atomic force microscopes the primary physical quantities being measured are the amplitude/phase or amplitude/frequency of the vibrating force probe. Topographic images with spatial resolutions down to the atomic scale can be obtained by mapping these measurements across the sample surface under feedback control. During the imaging process the vibrating tip is observing tip–sample int...

Atomic tunneling from a scanning-tunneling or atomic-force microscope tip: dissipative quantum effects from phonons.

We study the effects of phonons on the tunneling of an atom between two surfaces. In contrast to an atom tunneling in the bulk, the phonons couple very strongly and qualitatively change the tunneling behavior. This is the first example of Ohmic coupling from phonons for a two-state system. We propose an experiment in which an atom tunnels from the tip of an scanning-tunneling microscope, and sh...