BME103 s2013:T900 Group6 L2: Difference between revisions

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'''Single-Drop Fluorimeter'''<br>
'''Single-Drop Fluorimeter'''<br>
''The single-drop fluorimeter is a fluorescence-based DNA detection device that aids in bringing to light PCR-Amplified DNA. The DNA sample is placed on a plate placed upon the machine and shined with a blue LED light. When shone upon, the sample's DNA begins to emit a green light; able to be captured with a cell phone camera.''<br>
''The single-drop fluorimeter is a fluorescence-based DNA detection device that aids in bringing to light PCR-Amplified DNA. The DNA sample is placed on a slide upon the machine and shined with a blue LED light. When the light hits the sample, the sample's DNA emits a dim green glow. From there, under a controlled, light-limited environment, a camera (specifically a camera on a phone) can be used to capture the green light.''<br>





Revision as of 21:48, 1 April 2013

BME 103 Spring 2013 Home
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Lab Write-Up 1
Lab Write-Up 2
Lab Write-Up 3
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OUR TEAM

Name: Dale Franco L. Caagbay - Protocol
Name: Cyril Wassef - Background Information
Name: Emmanuel Casildo - Background Information
Name: student
Name: student
Name: student


LAB 2 WRITE-UP

Background Information

SYBR Green Dye
SBYR green dye is a nucleic acid-sensitive gel dye that is useful in pinpointing double stranded DNA in samples within open PCR machines and other utilities such as the single-drop fluorimeter.


Single-Drop Fluorimeter
The single-drop fluorimeter is a fluorescence-based DNA detection device that aids in bringing to light PCR-Amplified DNA. The DNA sample is placed on a slide upon the machine and shined with a blue LED light. When the light hits the sample, the sample's DNA emits a dim green glow. From there, under a controlled, light-limited environment, a camera (specifically a camera on a phone) can be used to capture the green light.


How the Fluorescence Technique Works
[In your own words, a summary of the information from page 9 of the worksheet]



Procedure

Smart Phone Camera Settings

  • Iphone 5
    • Flash: None
    • ISO setting: NA
    • White Balance: NA
    • Exposure: NA
    • Saturation: NA
    • Contrast: NA

Calibration

Photo of Fluorimeter


  • Distance between the smart phone cradle and drop = 8cm


Solutions Used for Calibration

Calf Thymus DNA solution concentration (microg/mL) Volume of the 2X DNA solution (uL) Volume of the SYBR GREEN I Dye Solution (uL) Final DNA concentration in PicoGreen Assay (ng/mL)
0 80 80 blank
.25 80 80 .125
.5 80 80 .25
1 80 80 .5
2 80 80 1
5 80 80 2.5


Placing Samples onto the Fluorimeter

  • Obtain waterproof slides, a Micropipette, and vials of various DNA samples along with a 200 ml vial of SYBR Green solution.
  • Insert slide into fluorimeter
  • Turn on blue fluorescent light and make sure that the beam is shined between the first two rows of the dotted slide.
  • Take 80 micro-liters of SYBR Green solution into micropipette
  • Release all of the 80 micro-liters of SYBR Green fluid onto the slide, then ensure that the beam of light hits the droplet.
  • Take another 80 micro-liters of DNA Sample and extract into the SYBR Green droplet. Make sure the drops form a ball and doesn't spread around making individual droplets all over the slide.
  • After the photo shoot is complete, calibrate the micropipette to 160 micro-liters and extract all of the sample on the slide.
  • Repeat the same steps for the additional DNA Samples.
  • Clean Up Workstation


Data Analysis

Representative Images of Samples

[Show an IMAGE where you drew a circle around the droplet with the freehand tool for a sample with no DNA]

[Show an IMAGE where you drew a circle around the droplet with the freehand tool for a sample with DNA (positive signal)]


Image J Values for All Samples [See worksheet page 5]

row 1 cell 1 row 1 cell 2 row 1 cell 3 row 1 cell 4 row 1 cell 5
row 2 cell 1 row 2 cell 2 row 2 cell 3 row 2 cell 4 row 2 cell 5
row 3 cell 1 row 3 cell 2 row 3 cell 3 row 3 cell 4 row 2 cell 5

[Add more rows as needed]


Fitting a Straight Line
[Place an IMAGE of your Excel plot with a line of best fit here. See worksheet page 8]