Klapperich Lab:Notebook/Lab Meeting Notes/2010/02/11: Difference between revisions
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* Start planning R01 for Submission on '''6/5/10.''' MM, JD, CMK. <br> | * Start planning R01 for Submission on '''6/5/10.''' MM, JD, CMK. <br> | ||
* HDA mix in dried form - Cathie found it<br> | * HDA mix in dried form - Cathie found it<br> | ||
* LOD tests | * HDA in tube works up to 69C. Negative at 70C. 65C is best. No temps below 65C tested. Confirms manufacturer papers and protocol (MM) <br> | ||
* LOD tests completed by MM on chip/in cup for 10ng, 0.3ng, 0.03ng, 0.003ng, 0.0003ng. Amplicon present down to 3pg, though very faint. Negative at 0.3pg <br> | |||
* HDA negative water reactions all have primer dimers/non-specific band at 70bp for c diff HDA (MM)<br> | * HDA negative water reactions all have primer dimers/non-specific band at 70bp for c diff HDA (MM)<br> | ||
* 2nd HDA design - "microSPE" + "Flu primer" + "HDA in a cup" + "Detection kit from Biohelix"<br> | * 2nd HDA design - "microSPE" + "Flu primer" + "HDA in a cup" + "Detection kit from Biohelix"<br> | ||
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* New design transfered to COP <br> | * New design transfered to COP <br> | ||
* Air resistance in the air channel is too large: <br> | * Air resistance in the air channel is too large: <br> | ||
** Air pressure: 50 psi, Flow rate: 53 uL/hr, in room temperature. This is very slow <br> | ** Air pressure: 50 psi, Flow rate: 53 uL/hr, in room temperature. ie. evaporated 633 uL in 12hr. This is very slow <br> | ||
* Redesign channel to reduce air resistance: see video <br> | * Redesign channel to reduce air resistance: see video <br> | ||
** Required samples of porous Teflon tubing, need advice on tube/chip format <br> | ** Required samples of porous Teflon tubing, need advice on tube/chip format <br> | ||
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* Hussam Runs chip with RNA (confirm procedure is correct) [update]<br> | * Hussam Runs chip with RNA (confirm procedure is correct) [update]<br> | ||
* Jessie will run chips with serial virus dilutions from 1:1 to 1:1,000,000 to re-do previous dilution experimnent with WHO SYBR green assay on chip.<br> | * Jessie will run chips with serial virus dilutions from 1:1 to 1:1,000,000 to re-do previous dilution experimnent with WHO SYBR green assay on chip.<br> | ||
* Jessie | * Jessie tried 4 2mm channels with 4uL SPE on Black Beauty. Only one sucessful elution with 70uL in two fractions. Got 1E6 copies compared to 8E6 previously. <br> | ||
* Sonali | * Sonali completed 5 total patients (BUMC and BIDMC) extracted and RT-PCR'd successfully using new RNA protocol and small SPE channel chips. All samples selected based on Qiagen kit extractions having low Cts at 15-20 cycles <br> | ||
* Sonali gave Qingqing 3 of these patient RNAs extracted on chip SPE for testing on-chip RT-PCR with SuperScript vs Qiagen one-Step kit. <br> | |||
† integrated chip for flu(SPE+RT+PCR) (Lead: Qingqing) <br> | † integrated chip for flu(SPE+RT+PCR) (Lead: Qingqing) <br> | ||
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<br> | <br> | ||
'''‡C. diff Project''' (Cathie, Sonali, Satish Singh, Lisa J., His post doc )<br> | '''‡C. diff Project''' (Cathie, Sonali, Satish Singh, Lisa J., His post doc )<br> | ||
* See email notes. | * See email notes. <br> | ||
* See HDA notes above for styrofoam cup/chip work (MM) | |||
† PCR of C.Difficile DNA (Qingqing)<br> | † PCR of C.Difficile DNA (Qingqing)<br> | ||
* ATCC C.dif DNA with Negative patient sample works on chip | * ATCC C.dif DNA with Negative patient sample works on chip | ||
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<br> | <br> | ||
'''‡ Agilent Automated Sample Preparation (Lead: Alex)'''<br> | '''‡ Agilent Automated Sample Preparation (Lead: Alex)'''<br> | ||
* Paper on HotDog | * Paper on HotDog (Draft) - still working on it. But almost done. <br> | ||
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'''‡ PATH Grant (Lead:Cathie, Team:Frank, Sean, Mark, Jake Trueb (ME))''' <br> | '''‡ PATH Grant (Lead:Cathie, Team:Frank, Sean, Mark, Jake Trueb (ME))''' <br> | ||
* Submitted Gantt Document to PATH 11/25. <br> | * Submitted Gantt Document to PATH 11/25. <br> | ||
* Frank: | * Frank: Eluting/PCR on extra-drying one-week samples. Also extracting/eluting/PCRing appropriate controls (stored in-solution, then straw extraction before PCR).<br> | ||
* Sean: Started making straws for the new experiments we talked about (DNA weights of 1ng, 10ng, and 100ng through 700nm at SPE 100 monolith at 0-day time point). New straw pieces are finished, but they may need some modification before they will fit in the Blackbird fixture. <br> | * Sean: Started making straws for the new experiments we talked about (DNA weights of 1ng, 10ng, and 100ng through 700nm at SPE 100 monolith at 0-day time point). New straw pieces are finished, but they may need some modification before they will fit in the Blackbird fixture. <br> | ||
* Mark: as of | * Mark: as of 18 Feb. has loaded 6 and 4 month trials with 10ng/straw. Results of the 1ng/straw 0-day trial inconclusive, redo possible. Sticking with 10ng/straw for remaining tests. Loaded 2 month trial on Tuesday 2/2. 1-week trial eluted Monday 2/15 again inconclusive - most likely there was a problem with the straws, a bad lot (same lot as the 1ng/straw test). To redo 1-week trial in the future with new lot of straws. Straw fabrication ongoing.<br> | ||
<br> | <br> | ||
'''‡ IIH Senior Project.'''<br> | '''‡ IIH Senior Project.'''<br> | ||
* | * Progress Report 1 completed | ||
* | * Began making 100 micron chips with revised design | ||
** Initial imaging shows cleaner cuts but still difficult to distinguish layers | |||
** | |||
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Revision as of 07:20, 18 February 2010
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11 February 2010 Lab MeetingJaephil Presentation. ‡ Announcements
† HDA (Lead: Jaephil, Team:Sonali)
† Sample Concentration (Lead: Jane, Team: Jaephil)
† SPE Column Optimization for DNA/RNA. (Lead: Sonali, Team: Hussam, Jessie, Brendan)
† integrated chip for flu(SPE+RT+PCR) (Lead: Qingqing)
† PCR of C.Difficile DNA (Qingqing)
* wrong size products(55bp). * no designed size product.
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