Carbon Nanotubes(Cnts): Origin, Application, Preparation and Characterization by Transmission Electron Microscopy (Tem)
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Date
2018-08-04
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Addis Ababa University
Abstract
Carbon nanotubes (CNTs) are allotropes of carbon with a nanostructure that can
have a length-to-diameter ratio greater than 1,000,000. These cylindrical carbon molecules
have novel properties that make them potentially useful in many nanotechnology applications.
Their unique surface area, sti_ness, strength and resilience have led to much
excitement in the _eld of pharmacy. Carbon nanotubes are categorized as single-walled
carbon nanotubes (SWNTs) and multi-walled carbon nanotubes (MWNTs). Techniques
have been developed to prepare nanotubes in sizeable quantities, such as: arc-discharge,
laser-ablation, chemical vapor-deposition, silane-solution and ame-synthesis methods.
The properties of CNTs are still being researched heavily and scientists have barely begun
to tap the potential of these structures. They can pass through membranes, carrying
therapeutic drugs, vaccines and nucleic acids deep into the cell to targets previously unreachable.
Overall, recent studies regarding CNTs have shown a very promising glimpse of
what lies ahead in the future of nano-medicines. This project presents the unique atomic
structure, properties, application and problems of carbon nanotubes (CNTs). The electronic
band structure of carbon nanotubes along with their small size and low dimension
are responsible for their unique electrical, mechanical and thermal properties. More over
the project focuses on the preparation, puri_cation and characterization of CNTs by
Transmission Electron Microscope (TEM)
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Keywords
Carbon Nanotubes, Origin, Application, Preparation and Characterization, Transmission Electron Microscopy