2024 NSTA New Orleans • EDVOTEK® Workshops

04 - Put the M into STEM: Quantitative Techniques for Biotechnology

Experimental Results and Analysis

Electrophoresis Results:

Lane

Tube

Sample

Molecular Weights (in bp)

1

A

DNA Standard

6751, 3652, 2827, 1568

Markers

1118, 825, 630

2

B

0 cycles

No bands

3

C

5 cycles

2999

4

D

10 cycles

2999

5

E

20 cycles

2999

6

F

30 cycles

2999

ELISA Results: The color intensity of each well reflects the initial concentration of whey. This ELISA experiment demonstrates the quantification of varying concentrations of antigens as detected by the inten - sity of the color reaction due to the accumulation of products. We prepared serial dilutions to determine the concentration of two antigens through comparison. A STEM extension quantifies the data using image analysis software.

1

2

3

4

C

E

Well

1

2

3

4

Dilution

---

1:4

1:8

0

Concentration

20

5

2.5

0

µg/mL

µg/mL

µg/mL

µg/mL

50

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