Nano technology n n n Definition of nano

Nano technology n n n Definition of nano technology Nano shell Nano particles Carbon nano tubes &its application. Application of nano technology

What’s Nano technology? . . is a science that deals with the study, control, development and alteration of structures of less than 100 nanometers (one nanometer is a billionth of a meter; Nano technology may able to create many new materials with a vast range of applications such as in medicine, electronics, biomaterials& energy production. Nano scale** Making a material Nano scale change its melting point &physical properties

The perfix nano means one bilionth 1 nm=10 -9 meter. n 80. 000 nano particles in a raw are the width of a human hair

Formation of Nano shells

Preparation : coper, silver salts , oxides put together &heated to 6000 c Deep Dish, Spain Zn. O coated glass, Ti. O 2 in paints.

scanning electron micrograph shows a carbon nanotube sheet pic 2**/. An artificial muscle made from a sheet of these carbon

Application of nano technology 1 - In medicine n n a-binding 5 -fu drug to the CU (drug delivery) Pill camera has video chip& lab system ship

1 - in medicine n n 1. 2. B- nano material for making creams to treat skin They use (Zn. O) as a nano particle why? Block u. v light Appear clear

Nano tubes based sensor that detect bacteria in drinking water, then happen treatment

Future possibilities Artificial white blood cells n Encapsulation of transplanted islet cells protect them from external environment &rejection by the body -Encapsulate biologically active materials such as enzymes, peptides& hormones n DNA repair Nano robot. n

Mechanism of robotic white blood cells ( Artificial white blood cells) n n Swim through circulatory system Ingesting , destroying pathogens& converting them into non toxic substance

• References transition elements book application of Nano tech workshop in faculty of science **http: //www. chemicalelements. com/eleme nts/ag. html n n n http: //www. medicine. mcgill. ca/artcell/2005 Nature. R ev. pdf http: //www. understandingnano. com/nanotubescarbon. html http: //www. nanoforum. org/nf 06~modul~showmore ~folder~99999~scc~news~scid~4235~. html? action =longview&