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Nanotechnology. 14,100. 7,220,000. “It would take an elephant, balanced on a pencil, to break through a sheet of graphene the thickness of Saran Wrap.” http://nanularity.com/default.aspx. y. a 1. a 2. x. SWNT. carbon allotropes.

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Presentation Transcript
slide4

“It would take an elephant, balanced on a pencil, to break through a sheet of graphene the thickness of Saran Wrap.”

http://nanularity.com/default.aspx

y

a1

a2

x

SWNT

carbon allotropes

NSF-funded researchers Richard Smalley, Robert Curl (both of Rice University) and Harry Kroto (University of Sussex, UK; non-NSF funded) shared the 1996 Nobel Prize in Chemistry for the discovery of "buckminsterfullerene." James Heath, then a graduate student at Rice and now a faculty member at UCLA, also played a key role.

nanotube

single walled carbon nanotubes
Single-Walled Carbon Nanotubes

Real timeNanotube length = 10 mm

slide8

Why is it so exciting?

  • Human Health
    • Gold nanoshells for cancer therapy
  • Environmental Health
    • Nanorust to clean drinking water

Live (green)/Dead (red) assays shows where immunotarged gold nanoshells and a near infrared laser destroyed prostate cancer cells

slide9
http://science.discovery.com/videos/brink-package-nano-water.htmlhttp://science.discovery.com/videos/brink-package-nano-water.html
optical vs electron microscopy
Optical vs. Electron Microscopy

Radiolarian (amoeboid protozoa)

Optical microscopy image

Electron microscopy image

Why do electron beams give superior resolution to light rays?

Shorter wavelength!

timeline of microscopy
Timeline of Microscopy

c. 1625

1938

SEM 1981

AFM 1986

http://www.nobel.se/physics/educational/microscopes/powerline/index.html

stm manipulating atoms
STM: Manipulating Atoms

Iron atoms on Copper surface

http://www.almaden.ibm.com/vis/stm/library.html#ref2l

scanning tunneling microscopy
Scanning Tunneling Microscopy

Nobel Laureates (1986) Heinrich Rohrer and Gerd Binnig

http://www.nobel.se/physics/educational/microscopes/scanning/index.html

slide17
AFM

http://www.nanotech-now.com/images/Art_Gallery/AS-AFM.jpg

what is nanotechnology
What is Nanotechnology?

Nanotechnology is the creation of functional materials, devices, and systems through control of matter on the nanometer length scale, exploiting novel phenomena and properties (physical, chemical, biological) present only at that length scale.

“If I were asked for an area of science and engineering that will most likely produce the breakthroughs of tomorrow, I would point to nanoscale science and engineering.”

Neal Lane

University Professor, Rice University

Former NSF Director

Assistant to President Clinton for Science and Technology

slide19

http://www.kqed.org/quest/television/view/189?gclid=CJnCjsCuxJ0CFSENDQodDmMxrQhttp://www.kqed.org/quest/television/view/189?gclid=CJnCjsCuxJ0CFSENDQodDmMxrQ

scanning electron microscopy
Scanning Electron Microscopy

http://mse.iastate.edu/microscopy/whatsem.html

http://mse.iastate.edu/microscopy/path2.html

http://www.mos.org/sln/sem/seminfo.html

transmission electron microscopy magnifies up to 50 million times hrtem
Transmission Electron Microscopy(magnifies up to 50 million times [HRTEM])

300 nm

http://www.nobel.se/physics/educational/microscopes/tem/index.html

CdSe quantum dot, Colvin

Trina Mandel and the TEM

Hollow colloidal ellipses, Colvin

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