User:Linh N Le/Notebook/2009/07/13: Difference between revisions
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*I will take down the annoying wire tomorrow since today I need to read up on the paper for the meeting | *I will take down the annoying wire tomorrow since today I need to read up on the paper for the meeting | ||
==OT== | |||
*Koch, Ant and I tethered some DNA and tried unzipping | |||
*There is a problem with the translator/piezzo | |||
**They seem to be misaligned because we get alot of "sliding" | |||
***Ex. the x translation works fine, but when you use the Y translator it has a diagonal movement wrt the microscope plane | |||
* We were able to find some tethers and pull on them | |||
**We feel that the trap is too weak since the beads keep coming out of the trap | |||
**it could also be a problem with the piezzo (misaligned and/or moving too fast) | |||
*Good note: 500nm beads are easy to see and very easily trapped (sometimes we get them when we dont want them) | |||
*We need to calibrate the tweezers tomorrow | |||
*Cool note: I think i saw dna unzip, but that result was unrepeatable | |||
**We turned on the trap near a tether, saw it move, then turned off the trap. | |||
***The bead "sprung back" to its original spot and oscillated a bit (like a block on a spring) | |||
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Revision as of 11:14, 14 July 2009
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