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NanotechnologyWhat is a nanometer?

What things are measured in nanoscale?

What are some nano products?How is nanomedicine fighting cancer?

By Janice Sees

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Remember when

http://www.cartoonstock.com

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Remember when

http://www.lukegibbs.com

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A meter stick is based on

Powers of 10

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Pictures showing powers of 10.

http://powersof10.com

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A nanometer is

one billionth of a meter

What does this mean?

How many zeroes are inone billion?

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What things are measured in

nanoscale (1nm 1,000nm)? DNA

Genes

Amino acids

Proteins

Atoms

Molecules

Carbon nanotubes

Carbon buckyballs

Gold nanoshells

Gold nanotubes

Bucky Balls consists of 60 carbon atoms.

http://www.osti.gov

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Which one is measured in the

nanoscale, a bacterium or a virus?

http://www.lifesci.ucsb.edu

HIV

http://www.healthinitiative.org

Answer: The virus is nanometer in

length. Bacteria are micrometer in

length. This means that bacteria are

around 1,000 times larger that viruses.

A bacterium

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Water molecule to Tennis Ball

http://www.cancer.gov

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Nano Products

Tennis balls

Tennis rackets

Golf balls Ski wax

Car wax

Pant DVD

Play Station

X-Box

Game Boy

Palm pilots Flash drives

Digital cameras

Cell phones Socks

Bowling balls

http://www.nnin.org/nnin_nanoproducts.html

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Nanomedicine

Nano sized materials, such as nanoshells,

nanotubes, and nanoparticles can be used

to attach and selectively destroy cancer

cells and not affect surrounding healthy

tissue. Magnetized beads can also be

engineered to specifically attach to cancer

cells and cause destruction. Thesetechnologies, along with many others,

offer hope in the war against cancer.

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Gold Nanoshells

http://www.pbs.org/wgbh/nova/sciencenow/3209/03-canc-nf.html

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Nanotubes

http://www.pbs.org/wgbh/nova/sciencenow/3209/03-canc-nf.html

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Dendrimers

http://www.pbs.org/wgbh/nova/sciencenow/3209/03-canc-nf.html

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Liposomes

http://www.pbs.org/wgbh/nova/sciencenow/3209/03-canc-nf.html

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Quantum Dots

http://www.pbs.org/wgbh/nova/sciencenow/3209/03-canc-nf.html

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Fullerenes

http://www.pbs.org/wgbh/nova/sciencenow/3209/03-canc-nf.html

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Gold Nanoparticles

http://www.pbs.org/wgbh/nova/sciencenow/3209/03-canc-nf.html

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Nanopores

http://www.pbs.org/wgbh/nova/sciencenow/3209/03-canc-nf.html

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Nanocantilever

http://www.pbs.org/wgbh/nova/sciencenow/3209/03-canc-nf.html

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Nanowire

http://www.pbs.org/wgbh/nova/sciencenow/3209/03-canc-nf.html

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Magnetic Beads Attached to Lung

Cancer Cells

Marik, J., Lau, D., Song, A., Wang, X., Liu, R., and K. Lam. 2002.

Magnetization of large polystyrene peptide beads for capturing and

expanding cancer cells. Journal of Magnetism and Magnetic

Materials 264 (2003): 153-157.

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Magnetized Beads Attached to

Leukemic Cells

Ueno, S. and M. Sekino. 2006. Biomagnetics and bioimaging

for medical applications. Journal of Magnetism and Magnetic

Materials 304 (2006): 122-127.

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Acknowledgements

Drexel/Penn RET NANO 2007

Program Coordinators: James McGonigleand Holly Burnside

This work was supported by the NationalScience Foundation.

Grant Number: EEC-0402045