BME103:T930 Group 4

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BME 103 Fall 2012 Home
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Lab Write-Up 1
Lab Write-Up 2
Lab Write-Up 3
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OUR TEAM

Name: Alex Hoang
Role(s): Open PCR Machine Engineer; DNA Measurement Operator
Name: Bobby Ryan
Role(s): Open PCR Machine Engineer; ImageJ Software Processor
Name: Sabrina Freeman
Role(s): Experimental Protocol Planner; Sample Preparation & Application
Name: Sheanah Conneen
Role(s): Experimental Protocol Planner; Data Compiler & Analyzer
Name: Hayden Hilliard
Role(s): Research and Development Scientist

LAB 1 WRITE-UP

Initial Machine Testing

The Original Design
https://myasucourses.asu.edu/courses/1/2012Fall-T-BME103-86053-86055-86054/groups/_185910_1//_7694078_1/Open%20PCR.png


Experimenting With the Connections

When we unplugged PCB Board of LCD from PCB of open PCR Circuit Board, the LCD display would turn off.

When we unplugged the white wire that connects PCB of open PCR Cicuit Board to the temperature sensor wire, the temperature reading of the machine dropped drastically.


Test Run

10/25/12

Testing the Open PCR for the first time was more complicated than we expected. Our Open PCR had technical difficulties that hindered its performance. Our samples took over 2 hours to cycle completely compared to other Open PCRs which took about 1 1/2 hours. In the end, the machine performed its task successfully. The software interface of the Open PCR was easy to understand and use. The LCD screen display also made it easy to monitor the progress of the test.




Protocols

Polymerase Chain Reaction

Polymerase Chain Reaction (PCR) is a process used to amplify DNA by making millions of copies of a particular sequence.

  1. Prepare DNA samples and reagents in their respective containers.
  2. Create three copies of each original DNA sample. Be sure to label each container explicitly.
  3. Place samples in the PCR machine.
    • Start the PCR machine.
    • The samples will be heated to 95°C to unwind the helix.
    • The temperature will drop to 57°C to activate the primer and strand pairing.
    • The temperature will then rise to 72°C to activate the DNA polymerase for replication.
  1. Remove the sample from the PCR machine and store them until it is time to take flourimeter measurements.

The PCR master mix is GoTaq® Colorless Master Mix, a premixed ready-to-use solution containing bacterially derived Taq DNA polymerase, dNTPs, MgCl2 and reaction buffers at optimal concentrations for efficient amplification of DNA templates by PCR.

Reagent Volume
Template DNA (20 ng) 0.2 μL
10 μM forward primer 1.0 μL
10 μM reverse primer 1.0 μL
GoTaq master mix 50.0 μL
dH2O 47.8 μL
Total Volume 100.0 μL


Flourimeter Measurements

(Add your work from Week 3, Part 2 here)




Research and Development

Specific Cancer Marker Detection - The Underlying Technology

(Add a write-up of the information discussed in Week 3's class)

(BONUS points: Use a program like Powerpoint, Word, Illustrator, Microsoft Paint, etc. to illustrate how primers bind to the cancer DNA template, and how Taq polymerases amplify the DNA. Screen-captures from the OpenPCR tutorial might be useful. Be sure to credit the source if you borrow images.)




Results

Sample Integrated Density DNA μg/mL Conclusion
PCR: Negative Control E6 F6 G6
PCR: Positive Control E7 F7 G7
PCR: Patient 1 ID #####, rep 1 E8 F8 G8
PCR: Patient 1 ID #####, rep 2 E9 F9 G9
PCR: Patient 1 ID #####, rep 3 E10 F10 G10
PCR: Patient 2 ID #####, rep 1 E11 F11 G11
PCR: Patient 2 ID #####, rep 2 E12 F12 G12
PCR: Patient 2 ID #####, rep 3 E13 F13 G13


KEY

  • Sample =
  • Integrated Density =
  • DNA μg/mL =
  • Conclusion =