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8/6/2019 Sees - Nanotechnology
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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