nano.seminar

Slide 1: 

WELCOME

NANO TECHNOLOGY : 

NANO TECHNOLOGY G.sinkaravelan. Second EEE “A” Periyar maniammai university

BASIC FACTS ABOUT NANOTECHNOLOGY: : 

BASIC FACTS ABOUT NANOTECHNOLOGY: Nano (Greek : dwarf) refers to length scales that are of the order of one billionth of a metre. Or 1/80000th the size of human hair

Slide 4: 

Nano technology simply refers to devices and materials fabricated on this type of scale. To manipulate each individual atom of an object is the basic idea of Nanotechnology. Such devices and materials can be built in two ways using Macroscopic Fabrication techniques.1)Bottom up approach2) Top Down approach Nano technology is not confined to limited number of fields. Every area of industry, Health and environment can be improved using this.

CONCEPTS OF NANO : 

CONCEPTS OF NANO 1 nm = 1 billionth of a meter usage in physics , chemistry , biology space research In medicine Future’s future

Working of Nanotechnology: : 

Working of Nanotechnology: Atoms are the building blocks for all matter in our universe. You and everything around are made of atoms. Nature has perfected the science of manufacturing matter molecularly. For instance, our bodies are assembled in a specific manner from millions of living cells. Cells are nature’s nanomachines. Nanotechnology is a hybrid science combining engineering and chemistry. Atoms and molecules stick together because they have complementary shapes that lock together, or charges that attract. Just like with magnets, a positively charged atom will stick to a negatively charged atom.

Slide 7: 

The most disruptive future changes may occur as a result of molecular manufacturing, an advanced form of nanotechnology.

NANO MATERIALS : 

NANO MATERIALS Applications with morphological features less than one tenth of a micrometer Fullerences – allotropes of carbon graphene sheets rolled – mechanical strength Nano particles – special properties Bending of bulk copper – suspension of materials.

APPLICATIONS : 

APPLICATIONS MEDICINE CHEMISTRY & ENVIRONMENT ENERGY COMMUNICATION HEAVY INDUSTRIES CONSUMER GOODS MEMORY STORAGE

INFORMATION & COMMUNICATION : 

INFORMATION & COMMUNICATION Memory storage – cross bar switch Novel semi conductors – GMRR , TMR Novel opto electrics – bandwidth more & high capacity and displays

IMPLICATIONS : 

IMPLICATIONS Effect on society Possible dangers Untraceable destructive weapons Industrial scale projects Exacerbate wealth gap

HEALTH RISKS : 

HEALTH RISKS Silver causes unintended consequences Research in rats Inflammation & stress May cause incurable diseases

NANO IN INDIA : 

NANO IN INDIA First World Nano-Economic Conference (WNEC), Mumbai, 29 March 2006. When it comes to NT, good science and good governance are needed.

FUTURE OF NANO : 

FUTURE OF NANO Eco friendly products Agricultural productivity energy generation Clean manufacturing Smart appliances Improved medicine

CONCLUSION : 

CONCLUSION Nanotechnology is an umbrella term that covers many areas of research dealing with objects that are measured in nanometers. In the next 50 years, machines will get increasingly smaller.. Nanomachines to manufacture consumer goods at the molecular level, piecing together one atom or molecule at a time to make baseballs, telephones and cars (which is the goal of nanotechnology). As televisions, airplanes and computers revolutionized the world in the last century, scientists claim that nanotechnology will have an even more profound effect on the next century.

Slide 17: 

Societal Impacts Time Steam Engines Computers Railways Automobiles (Middle Ages) Nanotechnology

Slide 18: 

THANK YOU