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.
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 Nanoelectronicsincluding 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.