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Team:Harvard/Dailybook/Week5/Widgetry
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** Run test with 1 day vs. 2 day old Shewie to determine if there is an effect | ** Run test with 1 day vs. 2 day old Shewie to determine if there is an effect | ||
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=Tuesday: July 22, 2008= | =Tuesday: July 22, 2008= | ||
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** mtrB culture to be used as 2-day culture on Thursday | ** mtrB culture to be used as 2-day culture on Thursday | ||
*troubleshoot LabVIEW | *troubleshoot LabVIEW | ||
| + | ** Resistances were measured to be different as expected in the past experiment | ||
| + | ** Some as low as 160 ohms | ||
| + | ** Perhaps the resistance of the chambers are less than we expected? | ||
=Wednesday: July 23, 2008= | =Wednesday: July 23, 2008= | ||
| + | * Started another mtrB culture | ||
| + | ** To be used as 1 day culture in experiment on Thursday | ||
| + | * LabVIEW | ||
| + | ** Determined that resistance should be measured before connecting to the fuel cells | ||
| + | ** Resistance of chambers is the same as what we measured initially | ||
| + | |||
=Thursday: July 24, 2008= | =Thursday: July 24, 2008= | ||
| + | * mtrB 1 day vs. 2 day experiment | ||
| + | ** 6 chambers | ||
| + | *** 3 chambers with 1-day old mtrB | ||
| + | *** 3 chambers with 2-day old mtrB | ||
| + | *** Injected lactate after the initial current spike came down | ||
| + | ** Hypothesis | ||
| + | ***2-day cultures will have lower (if any) current production | ||
| + | |||
=Friday: July 25, 2008= | =Friday: July 25, 2008= | ||
[[Image:mtrb_1dv2d.jpg | 600px]] | [[Image:mtrb_1dv2d.jpg | 600px]] | ||
Latest revision as of 19:22, 29 October 2008
Contents |
Goals for the Week
- Last week, had experiment with no current at all
- Hypothesized that cells were dead?
- Run test with 1 day vs. 2 day old Shewie to determine if there is an effect
Tuesday: July 22, 2008
- started mtrB and wt cultures
- mtrB culture to be used as 2-day culture on Thursday
- troubleshoot LabVIEW
- Resistances were measured to be different as expected in the past experiment
- Some as low as 160 ohms
- Perhaps the resistance of the chambers are less than we expected?
Wednesday: July 23, 2008
- Started another mtrB culture
- To be used as 1 day culture in experiment on Thursday
- LabVIEW
- Determined that resistance should be measured before connecting to the fuel cells
- Resistance of chambers is the same as what we measured initially
Thursday: July 24, 2008
- mtrB 1 day vs. 2 day experiment
- 6 chambers
- 3 chambers with 1-day old mtrB
- 3 chambers with 2-day old mtrB
- Injected lactate after the initial current spike came down
- Hypothesis
- 2-day cultures will have lower (if any) current production
- 6 chambers
Friday: July 25, 2008
mtrB: Overnight versus 2 Day Liquid Cultures
What we did:
-Ran 1-day old mtrB versus 2-day old mtrB
Results:
-The shapes of the curves were all very similar.
-Overnight cultures had slightly higher current production than 2-day old cultures.
