HORTICULTURE SCIENCE
APPLICATION OF NANO TECHNOLOGY
Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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view nonconductive objects like DNA
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view only conductive materials like copper
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view only transparent objects
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view only nanoparticles
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Detailed explanation-1: -Atomic-force microscopy (AFM) is a powerful technique that can image almost any type of surface, including polymers, ceramics, composites, glass, and biological samples. AFM is used to measure and localize many forces, including adhesion strength, magnetic forces, and mechanical properties.
Detailed explanation-2: -Abstract. Atomic force microscopy (AFM) is a microscopy technique that uses a sharp probe to trace a sample surface at nanometre resolution. For biological applications, one of its key advantages is its ability to visualize substructure of single molecules and molecular complexes in an aqueous environment.
Detailed explanation-3: -The AFM can be used to image and manipulate atoms and structures on a variety of surfaces. The atom at the apex of the tip “senses” individual atoms on the underlying surface when it forms incipient chemical bonds with each atom.
Detailed explanation-4: -Unlike STM or scanning electron microscopy it does not require a conductive sample. However there are limitations in achieving atomic resolution. The physical probe used in AFM imaging is not ideally sharp.