What is the difference between nanoscience and nanotechnology?
How long have humans been using nanoparticles?
Key Questions
Activity 1: Relative Sizes of Objects
1. Go to L1.2 Activity 1 on Google Drive and find the sheet with your name.
2. Use the website http://htwins.net/scale2/ to find the size of the objects and complete the worksheet.
Nanoscience vs NanotechnologyNanoscience vs Nanotechnology
What’s the difference?
Nanoscience or Nanotechnology. What do you think?
http://youtu.be/oSCX78-8-q0
Activity 2: Brainstorm
• What comes to mind when you hear the word “science” and the word “technology”?
• Add your ideas to the Google Doc (L1.2 Activity 2 on Google Drive).
• It is okay for an idea to appear in both columns.
Nanoscience
• The study of structures and unique properties of matter at the nanoscale
• An interdisciplinary field of science combining physics, materials science, chemistry, and related disciplines.
• First example of a liquid crystal• Studied in 1888• Unusual properties (two melting
points)• Unusual interaction with light• No interest at the time
Nanotechnology
• The design, characterization, production, and application of structures, devices, and systems by controlled manipulation of size and shape at the nanometer scale
• Further research into liquid crystals led to molecules being fine tuned to give properties suitable for the production of LCD screens.
Is doesn’t need to be either/or…
NANOSCIENCE NANOTECHNOLOGY
• Identification of physical and chemical properties
• Design• Application• Learning how to control and
mass produce the material.
Nanosilver studied with a scanning tunneling microscope
Antibactierial properties of nanosilver are used in a number of products.
History of NanoHistory of Nano
How long have we been using nanoscience?
Activity 3: The History of Nano
Scientist/Technology Year Summary
Who and what have made major contributions to the progress of nanoscience and nanotechnology?
• Find your table in the Google Presentation (L1.2 Activity 3 on Google Drive)
• Use the website http://www.discovernano.northwestern.edu/whatis/History/
• Prepare a summary of 5 scientists and 3 technologies that have prompted advances in the fields of nanoscience/nanotechnology
Home Learning
• Select one scientist and one technology from your list to study in more detail.
• Prepare six PowerPoint slides that meet the following criteria.– Slide 1: Title slide– Slides 2 and 3: Chosen Scientist (combined max. 80 words)– Slides 4 and 5: Chosen Technology (combined max. 80 words)– Slide 6: References
• You may use pictures/diagrams to enhance your presentation.
• Upload your presentation to the RAFL (Realsmart).