Life Sciences Commons^™

Gelatin Diffusion Experiment, Jennifer Welborn

Nanotechnology Teacher Summer Institutes

In this activity, nanotech participants will:

- See how food dyes and gelatin are used to model the delivery of nanoscale medicines to cells in the human body - Measure diffusion distances of 3 different colors of food dye by: Eye, photo image on a computer, ADI software (Analyzing Digital Images) Some useful websites:

• http://www.echalk.co.uk/Science/biologyContent.htm Life Processes and Cells
• http://workbench.concord.org/database/activities/321.html Molecular Workbench Database. Diffusion, osmosis, ...

Powers Of Ten: From Meters To Nanometers And Beyond, Rob Snyder

Nanotechnology Teacher Summer Institutes

The goal of this activity is to guide students toward an understanding of nanoscale dimensions by:

• Making a number of measurements using meter sticks, magnifiers, microscopes and spectrometers so students can make observations and generate their own data.

• Using scientific notation to compare the measurements they have made with the dimensions of very small structures