24 Questions
What happens to the surface area when the radius of a particle is decreased by a factor of two?
It doubles
How does crushing a 1cm particle into nanoparticles affect the surface area?
It increases thousands of times
In what way does particle size affect the color of gold particles?
Smaller particles are darker in color
What are some examples of different nano-architectures mentioned in the text?
Nanostar, Nanosponge, Nanorods, Nanowire
What leads to new properties in materials according to the text?
Decreasing size to the nano-scale
How can we visually represent nano-size materials?
By employing electron microscopes or scanning probe microscopes
What is the primary focus of Nanotechnology?
Creating new or improved products at extremely small scales
Which of the following correctly describes the nanometer scale?
1 - 100 nm
What is one of the key focuses when studying Nanotechnology?
Describing different nano-architectures based on sizes
Which statement accurately represents the role of nanomaterials in fighting COVID-19?
Nanomaterials are used for point-of-care diagnostics, carriers for therapeutics, and vaccine development
In what ways can nanotechnology benefit society?
Developing new treatment modalities for diseases
What makes the nanometer scale unique compared to macro scales?
Nanometer scale involves manipulating matter at extremely small scales, whereas macro scales deal with large scales of matter manipulation
What is the smallest object you can resolve with a regular optical microscope?
1000 - 2000 nm
Why do we need special microscopes to see nanoscale objects?
Particles on the nanoscale interact differently with light.
Which type of microscope uses a beam of electrons to visualize specimens?
Transmission electron microscope
What is the approximate size range of particles classified as nanoscale?
10 - 100 nm
Who should typically make decisions about the use of nanotechnologies?
A combination of experts, policymakers, and stakeholders
Should doctors use nanosilver catheters for infection prevention?
Yes, but only in specific cases
How much area would a teaspoon of paint cover if painted one nanometer thick?
The size of a football field
What percentage of Americans reported hearing 'nothing at all' about nanotechnology?
44%
How much have Americans heard about nanotechnology compared to previous years according to the National Science Board's Science and Engineering Indicators 2012?
Increased by 4 percentage points
Which field is NOT mentioned in the interdisciplinary endeavor related to nanoscience and nanotechnology?
Astronomy
Did scientists 'create' nano?
No, it was already in nature
What is one potential benefit of harnessing new behaviors at the nanometer scale?
Making new technologies
Explore the correct terminology, nano-architectures, applications, and societal impacts of Nanotechnology. Discuss the usefulness of Nanotechnology in modern applications such as fighting COVID-19.
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