What is the difference between nanoscience and nanotechnology? How long have humans been using...

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).