In 1991 the field of carbon nanotube research was launched by the initial investigational observation of carbon nanotubes by transmission electron microscopy (TEM). Carbon nanotubes (CNTs) are cylinder-shaped macromolecules with a few nanometers of radius, which can be grown up to 20 cm in length. Carbon nanotubes (CNTs) are measured as a new form of pure carbon. In nature there are two types of carbon nanotubes exist: single-walled carbon nanotube (SWNT) and multi-walled nanotube (MWNT). Nanoscale dimension (1-D) of carbon nanotubes have been well-known over the past 15 years.
Carbon nanotubes can usually be produced using arc discharge, laser ablation and chemical vapor diposition (CVD). Iijima in 1991 when he was studying the synthesis of fullerenes by using electric arc discharge technique, the molecules were first discovered. Carbon nanotubes have been introduced recently as a novel carrier system for both small and large therapeutic molecules. Carbon nanotubes have been introduced recently as a novel carrier system for both small and large therapeutic molecules.
Many potential applications have been planned for carbon nanotubes, including drug delivery, cellular imaging, antibacterial, gene transfection, etc. The transporting capabilities of carbon nanotubes combined with their unique physicochemical properties and appropriate surface modifications show great assure as an ideal carrier for target drug delivery systems for cancer therapies.
Keywords: Nanotubes, Gene Transfection, Transmission Electron microscopy, Cellular Imaging.