Sushrut Institute of Pharmacy

ABOUT AUTHOR:
K.Shailaja, Tahseen Sameena, S.P.Sethy, Prathima Patil, Md. Owais Ashraf,
Department Of Pharmaceutics.
Sushrut Institute of Pharmacy
Taddanpally (V), Pulkal (M), Medak-502293
shilu.kolmani@gmail.com

ABSTRACT:-
Carbon nanotubes have unique physical and chemical properties that chemists are trying to better understand through laboratory research. One of the physical properties of carbon nanotubes is that it’s possible to make them only a single atomic layer thick. This means that they can be about 1/50,000^th the thickness of a human hair. Because of the bonding characteristics of carbon atoms, the physical appearance of carbon nanotubes can often resemble rolled up chicken wire. One of the interesting physical properties about carbon nanotubes is that when you have two of them which have slightly different physical structures and they are joined together, the junction (gap or small space) between them can function as an electronic device. This electronic behavior depends upon the structure of the two tubes. Currently scientists are trying to make carbon nanotubes in large amounts (high yield) with a high degree of purity (little or no material defects)so that the physical structures are all the same. If they have similar physical and chemical properties then it becomes easier to predict their behavior which would ultimately make them more useful for possible nano sensors. These nano sensors could behave like semiconducting materials in microelectronic circuits, or detect small changes in electric current, or register chemical reactivity, or changes in air pressure or temperature For a more detailed outline of the possible applications of carbon nanotubes see the further sections of this document. Since carbon nanotube science is relatively new, scientists from the fields of chemistry, physics and the material sciences are just beginning to unlock its mysteries and hypothesize about its potential applications.