Teaching Materials (1-20 of 30)

1. MATE 370 Virtual Lab: Exploring Diffusion through nanoHUB Defect- coupled and Concentration-dependent Diffusion Tools

   Teaching Materials | 24 Sep 2020 | Contributor(s):: Mohsen B Kivy, Crystal Ipong

   This lab explores the kinetics of solid-state diffusion using nanoHUB tools.

2. Simulating a Controlled Drug Delivery System

   Teaching Materials | 11 Jun 2020 | Contributor(s):: Rebekah Ravgiala, NNCI Nano

   In this activity, students will learn about alternative drug delivery methods and then prepare a controlled drug delivery system using sodium alginate and glucose to mimic the behavior of a controlled release drug delivery system. The purpose of this investigation is to model a controlled drug...

3. When a Cell Talks, Everyone Listens!

   Teaching Materials | 06 May 2020 | Contributor(s):: Nicole Harper, NNCI Nano

   This is a two part lesson focused on diffusion and cell communication.  In Part 1, students will use the classic starch iodine diffusion activity. This activity can be done in any life science class. It can be used as an introduction to diffusion or as a refresher activity for advanced...

4. Understanding Movement of Molecules across the Cell Membrane

   Teaching Materials | 17 Apr 2020 | Contributor(s):: Brandi Childress, NNCI Nano

   This lesson uses a macro-model to demonstrate the diffusion of molecules across the cell membrane.  A deshelled egg serves as the cell model to observe movement in and out of the “cell”.  Students will learn that the cell membrane is composed of a complex nano-structured...

5. Linear Diffusion and Cell Signaling

   Teaching Materials | 17 Apr 2020 | Contributor(s):: NNCI Nano

   In this activity, students explore the concept of diffusion as a component of cell communication.  Specifically, students will explore how the rate of diffusion varies with distance and concentration gradient. They will use a pipet with water and dye to observe a macro-model of diffusion....

6. Multifaceted Microfluidics: Three simple methods to create a microfluidic device

   Teaching Materials | 07 Apr 2020 | Contributor(s):: Dixie Kullman, NNCI Nano

   This module is open-ended to allow for use in a number of classroom settings. The importance here is to permit the teacher to choose the technique provided and tailor the technique to the scientific principle. The students will create their own microfluidic devices and utilize their devices in...

7. Make a Microfluidic Device to Investigate Properties of Solutions

   Teaching Materials | 07 Apr 2020 | Contributor(s):: Greg Hair, NNCI Nano

   This lesson focuses on having students design and test a microfluidic device to investigate the properties of solutions. The lesson activities combine concepts learned in the previous semester (energy, frequency, wavelength, and bonding) together with the aforementioned concepts of solutions to...

8. Doping to Create a Semiconductor: Changing conductive properties through diffusion

   Teaching Materials | 14 Jan 2020 | Contributor(s):: Kaye Sheets, NNCI Nano

   In the semiconductor industry scientists take advantage of diffusion to “dope” or introduce atoms into a silicon wafer to change its conductive properties. The lesson simulates the diffusion of a gas phase substance (ammonia) into a solid substrate (gelatin)  and compares the...

9. How Catalysts Work - A Nanoscale Phenomenon

   Teaching Materials | 13 Jan 2020 | Contributor(s):: Manueal Casillas, NNCI Nano

   This activity helps students understand how catalysts work on the nanoscale. Catalyst are more efficient when on the nanoscale because of the large amount of surface area in comparison to volume. This is a great way to introduce or review reactants, catalysts, and adsorption, desorption, and...

10. Visualizing Diffusion in Real Time and on a Macroscle

    Teaching Materials | 06 Jan 2020 | Contributor(s):: Ryan Stuart, NNCI Nano

    This lesson has been designed to help students visualize how diffusion occurs by creating a macro version of a permeable membrane. The goal is to have students see how molecular size (atomic radii) impact diffusion at the nanoscale. In addition, they will observe diffusion rates of iodine with...

11. Solid Oxide Hydrogen Fuel Cell

    Teaching Materials | 29 Aug 2019

    Solve the steady-state radial diffusion equation in a cylinder to calculate the flux through a tubular fuel cell, then set up the equations to calculate the oxygen concentration field inside the fuel cell and the total power produced.

12. Growth of Precipitate Particle from Super Saturated Solid Solution

    Teaching Materials | 22 Aug 2019 | Contributor(s):: Matthew John M. Krane

    Use integral analysis to derive growth paramters for a precipitate particle during heat treatment.

13. Nitriding of an Iron Thin Film

    Teaching Materials | 19 Aug 2019 | Contributor(s):: Adam Powell

    Calculate nitrogen concentration profile during diffusion into a finite thin film of iron using error function and Fourier series solutions.

14. Iron Oxidation

    Teaching Materials | 19 Aug 2019 | Contributor(s):: Adam Powell

    During iron oxidation, calculate the oxide layer thickness over time, and compare to the case with 1% titanium added.

15. Decarburization of Solid Low-Carbon Steel

    Teaching Materials | 01 Aug 2019 | Contributor(s):: Adam Powell

    Calculate carbon concentration profile vs. time in low-carbon steel sheet in a decarburizing atmosphere at high Biot number.

16. Drive-in Diffusion of Semiconductor Dopant

    Teaching Materials | 01 Aug 2019 | Contributor(s):: Adam Powell

    Sketch concentration profiles and calculate depth vs. time of n-type layer growing by drive-in diffusion.

17. Application of Integral Analysis to Semi-infinite Diffusion Couple

    Teaching Materials | 01 Aug 2019 | Contributor(s):: Matthew John M. Krane

    Apply integral analysis to semi-infinite diffusion couple.

18. Chemical Vapor Deposition

    Teaching Materials | 28 May 2019 | Contributor(s):: Adam Powell

    Calculate boundary layer sizes and deposition rate profiles along substrates on the bottom of a box-type chemical vapor deposition chamber.

19. Dimensional Analysis: Catalytic Combustion of Carbon Monoxide

    Teaching Materials | 16 May 2019 | Contributor(s):: Adam Powell

    Use dimensional analysis to understand how parameters and material properties determine uniformity of reactant gas concentration across porous spheres coated with catalysts.

20. Heat Conduction and Diffusion in Alloy Casting

    Teaching Materials | 16 May 2019 | Contributor(s):: Adam Powell

    Derive temperature and liquid concentration profiles during die casting of a roughly plate-shaped alloy part.