Artificial Pancreas

[kbmcgill]

I'm trying to make the artificial pancreas project into an experiment ( i.e Hypothesis which can be tested) and need some help.

Thank you.

Kerry

[norman40]

Hello Kerry,

I’m assuming that you are asking about the project described here:

https://www.sciencebuddies.org/science- ... ml#summary

This is an engineering project in which the goal is to build a pump that automatically responds to a chemical reaction. As such, the project doesn’t include an experiment like you would have in a science project.

Solution conductivity is the principle used to make the automated pump work. You might consider experiments to explore or use conductivity. For example, a project that uses a conductivity sensor is described here:

https://www.sciencebuddies.org/science- ... p053.shtml

In the artificial pancreas project the pump and sensor system is designed to shut off when enough vinegar is pumped into a baking soda solution to neutralize it. This is also known as an acid-base titration. Another titration is the topic of the project described here:

https://www.sciencebuddies.org/science- ... p044.shtml

If you are interested in sugars in foods and relating this to diabetes, you might want to take a look at the following projects.

https://www.sciencebuddies.org/science- ... p049.shtml

https://www.sciencebuddies.org/science- ... lism.shtml

https://www.sciencebuddies.org/science- ... p073.shtml

I hope this helps. Please post again if you have more questions.

A. Norman

[kbmcgill]

Thank you for your informative reply. I have the artificial pancreas set up but when the conductor is in the neutralized solution i cannot adjust the pump to turn it off using the potentiometers. I have replaced most of the parts and the pump still cannot be turned off.

Thank you.

KBMCGILL

[kbmcgill]

The pump will not shut off unless one of the alligator clips are removed. Even when its in the base solution. Not sure what the issue is.

Thank you.

kbmcgill

[kbmcgill]

The pump will not shut off unless one of the alligator clips are removed. Even when its in the base solution. Not sure what the issue is.

Thank you.

kbmcgill

[LeungWilley]

Hi kbmcgilll,
Based on your description, It sounds like the circuit is shorted / bypassing the potentiometers. Can you confirm the circuit path between the battery and the pump, just to be certain?
Thanks!
Willey