M2 | Nanotechnology

Nanotechnology - Convergence of science, technology, and engineering where the observation, characterization, design and controlled fabrication of materials and devices are at a scale of nanometers.

10^-9 meters - How many meters is one nanometer?

Nanopores, Dendrimers, Nanotubes, Quantum Dots, Nanosheets - Give examples of Nanodevices

Single Human Hair - Nanofibers are smaller than?

Antibodies, Virus - Nanomaterials are about the same size as?

Lighter, Stronger, Faster, Smaller, More Durable - Nanotechnology is already making todays products…

Carbon Nanotubes (CNTs)

Carbon Nanotubes - Are 4nm in width, 100x stronger than steel and 1/6 its weight, thermally/electrically conductive, metallic & semi-conductive.

4nm - What is the width of Carbon Nanotubes

100x and 1/6 its weight - How different is it from steel?

Yes - Can it either be thermally/electrically conductive?

Both - Is it metallic or semi-conductive?

Approaches to Nanotechnology

Top-Down Approach, Bottom-Up Approach - What are the approaches to Nanotechnology?

Top-Down Approach - Bulk materials are broken down into smaller and smaller particles.

Bottom-Up Approach - Nanoparticles are built up to form an atom/molecule at a time.

Transparent Conductive Coating

Indium Tin Oxide (ITO) - What are transparent conductive coating made of?

CRTs, Photographic Films, Touch Screens - Examples of transparent conductive coating

Magnetic Recording Tapes

Audiocassettes, Videocassettes, Data Storage Tapes, Floppy Disks, Hard Disks - What can magnetic storage tapes magnetically store?

Fe Oxide or Co-Fe Oxide - What do magnetic recording tapes use?

Sunscreen

TiO2 & ZnO Particles - These nano provide broad-spectrum UV protection in a transparent formulation.

UVB Exposure - Sunburn and Carcinoma

UVA Exposure - Melanoma and Premature Aging

Imaging and Diagnostics

Silica-Coated Surface Enhanced Raman Scattering (SERS) - Active metal nanoparticles allow robust, ultrasensitive, highly-multiplexed biomarker quantitation in any biological matrix, including blood.

Nanoplex Biomarker Detection - What type of nanodevice is is the SERS?

Photocatalysis

Photocatalytic Reactions - These reactions can purify water, air, surfaces, and fabrics.

TiO Nanocrystals/Films - A nanodevice that that uses photocatalytic reactions.

Propellants

(True) Nanoscale Al powder have higher burn rates.

16% - Of the 502,126kg of propellant used in the solid rocket boosters of the Space Shuttle, __% is atomized Al powder.

Drug Delivery and Disease Treatment

Drug Delivery and Disease Treatment - Potential to revolutionize cancer treatment.

Nanocrystals - Can be effective agents for selective targeting and destruction of cancer cells.

Nanocrystals - They have smaller particle sizes, surface functionalization is possible, with unique properties (magnetically, optical).