User:Allison K. Alix/Notebook/Thesis Research/2013/05/14

From OpenWetWare
Jump to navigationJump to search
The printable version is no longer supported and may have rendering errors. Please update your browser bookmarks and please use the default browser print function instead.
Project name <html><img src="/images/9/94/Report.png" border="0" /></html> Main project page
<html><img src="/images/c/c3/Resultset_previous.png" border="0" /></html>Previous entry<html>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</html>Next entry<html><img src="/images/5/5c/Resultset_next.png" border="0" /></html>

Objectives

  • React thiol-DNA/ThT/AuNP at 150:1 concentrations of thiol-DNA:AuNP
  • Run 2% agarose gel on thiol-DNA/ThT/AuNP synthesized on 04/23/2013
  • Take absorbance and fluorescence measurements of thiol-DNA/ThT before and after attaching AuNP

Procedures

  • New AuNP synthesized is 29.67nM with a diameter of 10nm

Previous concentrations used:

Initial Final
thiol-DNA 5.82μM 727.5nM
ThT 5μM 625nM
AuNP 19.4nM 9.7nM

To be used:

Initial Final
thiol-DNA 17.8μM 2.225μM
ThT 20μM 2.5μM
AuNP 29.67nM 14.835nM

Calculations:

Preparing 17.8μM thiol-DNA

original concentration of thiol-DNA- 53.1μM

53.1μM (x) = (17.8μM)(250μL) x= 83.8μL in 166.2μL buffer

Preparing 20μM ThT

original conc ThT= 5mM

5mM (x) = (0.02mM)(10mL) x=40μL in 9960μL H2O


Part 1: hybridizing thiol-DNA with ThT

1) Mix 250μL 17.8μM thiol-DNA with 250μL 20μM ThT

  • NEW concentrations: 8.9μM thiol-DNA and 10μM ThT

2) Heat at 75°C for ~25min

3) Cool to room temperature

4) Take UV-Vis/Fluorescence measurements of thiol-DNA/ThT sample

Part 2: Hybridizing thiol-DNA/ThT with AuNP

1)

Part 3: Gel Electrophoresis (2% Agarose)

Prepare the following:

1) 5μL 100bp ladder with 1μL loading buffer

2) 5μL thiol-DNA/ThT/AuNP with 1μL loading buffer

3) 5μL supernatant 1 with 1μL loading buffer

4) 5μL supernatant 2 with 1μL loading buffer

5) 5μL supernatant 3 with 1μL loading buffer