Team:Harvard/Dailybook/Week5/Widgetry

= 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

=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.