Scanning Motions of an Atomic Force Microscope Tip in Water
نویسندگان
چکیده
منابع مشابه
High Resolution Image with Multi-wall Carbon Nanotube Atomic Force Microscopy Tip (RESEARCH NOTE)
In this paper, a simple and reproducible approach for attaching the multi-wall carbon nanotubes (MWNTs) to the apex of the atomic force microscope probe has been proposed. For this purpose, the dielectrophoresis method was applied due to its simple performance, cheapness and reliability. In this method, various parameters such as voltage, frequency, concentration of carbon nanotubes solution an...
متن کاملA New Type of Atomic Force Microscope
6 Local flow variation (LFV) method of nonlinear time series analysis is applied to 7 develop a chaotic motion based atomic force microscope (AFM). The method is 8 validated by analyzing time series from a simple numerical model of a tapping mode 9 AFM. For both calibration and measurement procedures the simulated motions of 10 the AFM are nominally chaotic. However, the distance between a tip ...
متن کاملAtomic force microscopy of DNA in aqueous solutions.
DNA on mica can be imaged in the atomic force microscope (AFM) in water or in some buffers if the sample has first been dehydrated thoroughly with propanol or by baking in vacuum and if the sample is imaged with a tip that has been deposited in the scanning electron microscope (SEM). Without adequate dehydration or with an unmodified tip, the DNA is scraped off the substrate by AFM-imaging in a...
متن کاملHydration force in the atomic force microscope: A computational study.
Using a hard sphere model and numerical calculations, the effect of the hydration force between a conical tip and a flat surface in the atomic force microscope (AFM) is examined. The numerical results show that the hydration force remains oscillatory, even down to a tip apex of a single water molecule, but its lateral extent is limited to a size of a few water molecules. In general, the contrib...
متن کاملFrequency response of an atomic force microscope in liquids and air: Magnetic versus acoustic excitation
We discuss the dynamics of an amplitude modulation atomic force microscope in different environments such as water and air. Experiments, analytical expressions, and numerical simulations show that the resonance curves depend on the excitation method used to drive the cantilever, either mechanical or magnetic. This dependence is magnified for small force constants and quality factors, i.e., belo...
متن کامل