NANOTECHNOLOGY“A small science with a huge potential”

Nanotechnology

Nanotechnology: The creation of functional materials, devices and systems through control of matter on the nano Scale(10^-9).

Why Nanotech? Small particles are ‘invisible’ : Transparent Coatings are attainable Small particles are very weight

efficient and Uniform coverage : Surfaces can be modified with minimal

material.

Components

Different types of Nanomaterials

Nanopowder Nanotube Nanomaterial in Biological Sciences

Nanopowder Applications

Useful in manufacturing inhalable drugs.

Particles in the micrometer scale often, leads to clumping problems.

Could use smaller nanoparticles to prevent clumping by forcing spacing.

Nanotube

Carbon Nanotube(CNT) Used to build nanoscale electronic and mechanical devices

Nanotubes are Used to detect the presence, and exact location, of altered genes.

Nanotube applications The IBM used nanotubes to make a

"voltage inverter" circuit, also known as a "NOT"

Structural elements in bridges, buildings, towers, and cables

Material for making lightweight vehicles for all terrains

Open-ended straws for chemical probing and cellular injection

Nanoelectronics including batteries capacitors and diodes

Nanostructures in Biological Systems

Two major concerns 1. To be large enough they don’t just pass through the body. 2. Need to be small enough they don’t accumulate in vital organs and don’t

create toxicity problems.

Cancer Detection and Diagnosis

Currently done by physical examination or imaging techniques won’t detect

molecular changes exactly. Need to detect changes in small

percentage of cells, need very sensitive technology, “enter” nanostructures

Improvements in Diagnostics Nanodevices could exam tissue or cell samples without physically altering

them.

Perform multiple tests simultaneously.

Leading to faster, more efficient, and less sample consuming diagnostic tests.

Thank You!