nanoscale science and engineering how nanotechnology is impacting our everyday lives
Download
Skip this Video
Download Presentation
Nanoscale science and engineering: How nanotechnology is impacting our everyday lives

Loading in 2 Seconds...

play fullscreen
1 / 22

Nanoscale science and engineering: How nanotechnology is impacting our everyday lives - PowerPoint PPT Presentation


  • 164 Views
  • Uploaded on

Nanoscale science and engineering: How nanotechnology is impacting our everyday lives. Aldrin E. Sweeney, Ph.D. Associate Professor, Science Education Miami Science Museum May 2-3, 2008. A little bit about me… . Program Coordinator, Science Education at UCF

loader
I am the owner, or an agent authorized to act on behalf of the owner, of the copyrighted work described.
capcha
Download Presentation

PowerPoint Slideshow about 'Nanoscale science and engineering: How nanotechnology is impacting our everyday lives' - clem


An Image/Link below is provided (as is) to download presentation

Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author.While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server.


- - - - - - - - - - - - - - - - - - - - - - - - - - E N D - - - - - - - - - - - - - - - - - - - - - - - - - -
Presentation Transcript
nanoscale science and engineering how nanotechnology is impacting our everyday lives

Nanoscale science and engineering: How nanotechnology is impacting our everyday lives

Aldrin E. Sweeney, Ph.D.

Associate Professor, Science Education

Miami Science Museum

May 2-3, 2008

a little bit about me
A little bit about me…
  • Program Coordinator, Science Education at UCF
  • Academic background in biochemistry, organic chemistry and science education
  • Work with colleagues at UCF and worldwide on issues relating to science and engineering education (elementary-undergraduate)
  • Current research efforts in nanoscale science and engineering education (NSEE)
overview how nanotechnology is impacting our everyday lives
Overview: How nanotechnology is impacting our everyday lives

Defining nanoscale science and engineering (“nanotechnology”)

Why the excitement about nanotechnology? Examples of “nanotech” in current research … and everyday life

U.S. National Nanotechnology Initiative and NSEE

Examples of NSEE research

what is nanoscale science engineering
What is nanoscale science & engineering?

The study of materials and associated

physical, biophysical and biochemical

phenomena on the scale of ~1-100 nm.

The primary appeal of nanotechnology is the

potential to manipulate matter at

the nanoscale. This leads to the

possibility of preparing novel materials

(nanomaterials) that have specific,

manipulable physical properties and

functions.

slide7
What makes the nanoscale special?
  • High density of structures is possible with small size.
  • Physical and chemical properties can be different at the nano-scale (e.g. electronic, optical, mechanical, thermal, chemical).
  • The physical behavior of material can be different in the nano-regime because of the different ways physical properties scale with dimension (e.g. area vs. volume).

Prof. Richard Feynman

“There’s plenty of room at the bottom”

physical chemical properties can change as we approach the nano scale
Physical/chemical properties can change as we approach the nano-scale

Melting point of gold particles

Fluorescence of semiconductor

nanocrystals

Decreasing crystal size

K. J. Klabunde, 2001

M. Bawendi, MIT: web.mit.edu/chemistry/nanocluster

Evident, Inc.: www.evidenttech.com

By controlling nano-scale (1) composition, (2) size, and (3) shape, we cancreate new materials with new properties  New technologies

popular perceptions of nanotechnology
Popular perceptions of nanotechnology

I, Robot (2004)

Outer Limits: The New Breed (1995)

Star Trek: TNG (1987-1994)

slide11
Nanotechnology is estimated to become a trillion dollar market by ~2010

Areas in which nanotechnologies are expected to impact our everyday lives:

  • Mechanical engineering
  • Aerospace
  • Environmental remediation
  • Pharmaceuticals & drug delivery
  • Biotechnology -- CdSe nanocrystals
  • Electronics
  • Photonics (communications & computing using photons)
  • Information storage
  • Energy storage/transport
  • Materials engineering
  • Textiles
slide14
Research area 1: Lightweight, multi-functional nano-fibers and materials
  • Research area 2: Battle suit medicine
  • Research area 3: Blast and ballistic protection
  • Research area 4: Chem/bio materials science (detection & protection)
  • Research area 5: Nanosystems integration
nanofibres help nerves in brain regrow
Nanofibres help nerves in brain regrow
  • Researchers at MIT, US, Hong Kong University and Fourth Military Medical University, China, have used a nanofibre scaffold to help nerve cells regenerate in the brains of hamsters.
  • Peptide nanofibre solution injected into the animals' brains; fibres self-assembled into a network in the void in the brain caused by injury; technique restored at least some sight to ~75% of the animals.
  • Technique being tested on spinal cord injuries; plans to launch trials in primates and eventually in humans; technique ultimately could help people who have suffered traumatic brain injuries, spinal cord injuries and stroke.
  • Ellis-Behnke et al, 2006, PNAS
what is the national nanotechnology initiative
What is the National Nanotechnology Initiative?

Federal R&D program that coordinates multiagency efforts in nanoscale science, engineering, and technology.

Launched in 2001 after approval by U.S. Congress in November 2000 ($422 million in funding, 2001 fiscal year)

23 federal agencies comprise the Initiative, 11 of which have a nanotechnology R&D budget.

2004 fiscal year … $961 million in funding; 2007 fiscal year …. ~$1,445 million in funding; 2009 budget, $1.5 billion in funding

www.nano.gov

societal implications of nanoscience and nanotechnology
Societal implications of nanoscience and nanotechnology

* National and global economics

* Environmental sustainability

* Development of pharmaceuticals

* Human lifespan and quality of life

* Education/workforce preparation

-- Future of K-16 science/engineering education

k 16 science engineering education
K-16 science & engineering education
  • Estimated that up to 2 million workers will be needed worldwide in various nanotechnology fields within the next 10-15 years (M. Roco, NSF, International Journal of Engineering Education, 2002).
  • Fields with greatest immediate anticipated needs: biomedical applications, microelectromechanical systems (MEMS), microfluidics, opto-electronics, information storage, pharmaceuticals and microelectronics (S. Fonash, Pennsylvania State University, Journal of NanoparticleResearch, 2001).
questions comments suggestions

QUESTIONS, COMMENTS, SUGGESTIONS:

Aldrin E. Sweeney, Ph.D.

Associate Professor & Program Coordinator, Science Education

[email protected]

ad