24-06-2013, 03:54 PM
Nanotechnology and Aerospace
[attachment=55921]
What is nanotechnology?
A description
• Nanotechnology is the understanding and control of matter at
dimensions between approximately 1 and 100 nanometers, or
nanoscale.
• Unusual physical, chemical, and biological properties can
emerge in materials at the nanoscale. These properties may
differ in important ways from the properties of bulk materials
and single atoms or molecules.
• Encompassing nanoscale science, engineering, and
technology, nanotechnology involves imaging, measuring,
modeling, and manipulating matter at this length scale.
Why do we care?
• Quantum mechanics plays a
much more important role
• For example,
– A brick of gold is shiny and
“gold”-colored.
– A vial of gold nanoparticles in
solution can be a range of colors
depending on the size of the
nanoparticles.
– This is because of a phenomenon
know as quantum confinement.
Activity Description
• You have been assigned an area of nanotechnology research
to support.
• Go through this presentation and any other credible sources
to identify three benefits of research in nanotechnology
toward your area of interest and up to three potential risks
you perceive in your area of interest.
• As a group, we will weigh the risks and benefits of each area
to decide how much of our federal nanotechnology budget
should go to each research area.
[attachment=55921]
What is nanotechnology?
A description
• Nanotechnology is the understanding and control of matter at
dimensions between approximately 1 and 100 nanometers, or
nanoscale.
• Unusual physical, chemical, and biological properties can
emerge in materials at the nanoscale. These properties may
differ in important ways from the properties of bulk materials
and single atoms or molecules.
• Encompassing nanoscale science, engineering, and
technology, nanotechnology involves imaging, measuring,
modeling, and manipulating matter at this length scale.
Why do we care?
• Quantum mechanics plays a
much more important role
• For example,
– A brick of gold is shiny and
“gold”-colored.
– A vial of gold nanoparticles in
solution can be a range of colors
depending on the size of the
nanoparticles.
– This is because of a phenomenon
know as quantum confinement.
Activity Description
• You have been assigned an area of nanotechnology research
to support.
• Go through this presentation and any other credible sources
to identify three benefits of research in nanotechnology
toward your area of interest and up to three potential risks
you perceive in your area of interest.
• As a group, we will weigh the risks and benefits of each area
to decide how much of our federal nanotechnology budget
should go to each research area.