BME100 f2014:Group33 L5

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BME 100 Fall 2014 Home
Lab Write-Up 1 | Lab Write-Up 2 | Lab Write-Up 3
Lab Write-Up 4 | Lab Write-Up 5 | Lab Write-Up 6
Course Logistics For Instructors
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Name: Emigdio Ruiz Esquivel
Name: John Cunningham
Name: Wandasun Sihanath
Name: Chris Adams
Name: Tim Snelling
Name: Breanna Falcon



Smart Phone Camera Settings

  • Type of Smartphone:iPhone 5 S
    • Flash: N/A
    • ISO setting: Automatic
    • White Balance: N/A
    • Exposure: N/A
    • Saturation: N/A
    • Contrast: N/A


  1. To set up the fluorimeter, the excitation light needs to be turned on, which is the blue switch for the Blue LED light.
  2. Then the camera on the smartphone needs to be turned on.
  3. After the settings are adjusted on the smartphone, it is placed in the cradle at a right angle because it makes filtering easier in ImageJ. The height is also adjusted so that the camera can take a picture of the drop from the side.
  4. The distance is then adjusted between the smartphone and the cradle so that it is 4cm or more away from the slide so that the drop does not appear blurry.
  5. The distance between the drop and smartphone in the cradle is recorded by a ruler and should not be moved from its position because the light collected can change the image that is captured.

  • Distance between the smart phone cradle and drop = 5 cm

Solutions Used for Calibration

Placing Samples onto the Fluorimeter

  1. Place a 80* microliter drop of SYBR GREEN I in the middle of the first two rows with the pipettor. Then add 80* microliters of one solutions that is in the table above, which will make a sample
  2. Move the slide so that the blue LED light is focused on the side of the drop.
  3. Set the timer to take a picture after the light box is shut. The light box removes most of the stray light, so it is okay if a little gets in.
  4. Make sure the drop is in focus and take three pictures of the drop.
  5. Be cautious when removing the box, so that the distance between the smartphone is not tampered with. If the smartphone needs to be adjusted, use a ruler so that the exact position it was at can be returned to.
  6. Remove the 160 microliter drop from the slide with the pipettor and move the slide to the next two rows.
  7. Repeat steps 1-5 for the other concentrations that are listed in the table above.
  8. Several of the slides can be used, since they are inexpensive, if the calibration needs to be rerun or if a mistake happens.

Data Analysis

Representative Images of Negative and Positive Samples
Photo of Negative Sample droplet with circle around droplet
Above is a photo of the PCR TUBE Labeled Negative droplet on the Fluorimeter
Photo of Positive Sample droplet with circle around droplet
Above is a photo of the PCR TUBE Labeled Positive droplet on the Fluorimeter

Image J Values for All Calibrator Samples

Calibration curve

PCR Results Summary

  • Our positive control PCR result was 2.76 μg/mL
  • Our negative control PCR result was 0.4301 μg/mL

Observed results

  • Patient 31366 : 6.89 μg/mL; When the SYBR Green was added to the drop, the droplet reflected a green light
  • Patient 26606 : -3.23 μg/mL; When the SYBR Green was added to the drop, the droplet did not reflect a green light


  • Patient 31366 : This patient was positive because when the SYBR Green was added to the drop, it reflected a green light similar to that of the positive control. This patient has the Calf Thymus gene, therefore the light expressed a green reflection.
  • Patient 26606 : This patient was negative because when the SYBR Green was added to the drop, it did not reflect a green light, similar to that of the negative control. Different from Patient 31366, since this patient did not have the Calf Thymus gene, no green light was reflected.

SNP Information & Primer Design

Background: About the Disease SNP

  • Building block of DNA
  • A variation that is in DNA
  • The latin name is Homo Sapiens
  • 21:34370656
  • It is pathogenic
  • KCNW2
  • Long Qt syndrome
  • Potassium voltage-gated channel
  • An alternative form of a gene that may cause mutation
  • CTC
  • 34370656

Primer Design and Testing