The prefix “nano” is a Greek word which means “dwarf ”.
The word “nano” means very small or miniature size.
Carbon nano tubes: These are small macromolecules that are unique for their size, shape, and have unique physical properties.
Nano tubes have some special advantages over other drug delivery and diagnostic systems (Figure 3) due to their unique physical properties.
The advanced techniques of nanotechnology can help storage of energy, its conversion into other forms, ecofriendly manufacturing of materials and by better enhanced renewable energy sources.
Nanotechnology can be used for less expensive energy production and for renewal energies, in solar technology, nano-catalysis, fuel cells and hydrogen technology.
Nanotechnology deals with materials in the size of 0.1 to 100 nm; however it is also inherent that these materials should display different properties such as electrical conductance chemical reactivity, magnetism, optical effects and physical strength, from bulk materials as a result of their small size.
Nanotechnology works on matter at dimensions in the nanometer scale length (1-100 nm), and thus can be used for a broad range of applications and the creation of various types of nano materials and nano devices.
Applications of nano particles in drug delivery, protein and peptide delivery, cancer are explained.
Applications of various nano systems in cancer therapy such as carbon nano tube, dendrimers, nano crystal, nano wire, nano shells etc. The advancement in nano technology helps in the treatment of neuro degenerative disorders such as Parkinson’s disease and Alzheimer’s disease.