User:Dhea Patel/Notebook/Experimental Biological Chemistry Notebook/2012/08/29: Difference between revisions
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|style="background-color: #EEE"|[[Image: | |style="background-color: #EEE"|[[Image:BDLlogo_notext_lr.png|300px]]<span style="font-size:22px;"> AU Biomaterials Design Lab</span> | ||
|style="background-color: #F2F2F2" align="center"|<html><img src="/images/9/94/Report.png" border="0" /></html> [[{{#sub:{{FULLPAGENAME}}|0|-11}}|Main project page]]<br />{{#if:{{#lnpreventry:{{FULLPAGENAME}}}}|<html><img src="/images/c/c3/Resultset_previous.png" border="0" /></html>[[{{#lnpreventry:{{FULLPAGENAME}}}}{{!}}Previous entry]]<html> </html>}}{{#if:{{#lnnextentry:{{FULLPAGENAME}}}}|[[{{#lnnextentry:{{FULLPAGENAME}}}}{{!}}Next entry]]<html><img src="/images/5/5c/Resultset_next.png" border="0" /></html>}} | |style="background-color: #F2F2F2" align="center"|<html><img src="/images/9/94/Report.png" border="0" /></html> [[{{#sub:{{FULLPAGENAME}}|0|-11}}|Main project page]]<br />{{#if:{{#lnpreventry:{{FULLPAGENAME}}}}|<html><img src="/images/c/c3/Resultset_previous.png" border="0" /></html>[[{{#lnpreventry:{{FULLPAGENAME}}}}{{!}}Previous entry]]<html> </html>}}{{#if:{{#lnnextentry:{{FULLPAGENAME}}}}|[[{{#lnnextentry:{{FULLPAGENAME}}}}{{!}}Next entry]]<html><img src="/images/5/5c/Resultset_next.png" border="0" /></html>}} | ||
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<!-- ##### DO NOT edit above this line unless you know what you are doing. ##### --> | <!-- ##### DO NOT edit above this line unless you know what you are doing. ##### --> | ||
==Objective== | |||
*to make stock solutions of HAuCl<sub>4</sub> and BSA. | |||
*to make 14 differently concentrated HAuCl<sub>4</sub> and BSA mixtures. | |||
==Description== | |||
# Calculations were made to determine how much HAuCl<sub>4</sub> was required to make 25mL of 10mM stock solution. | |||
# Calculations were made to determine how much BSA was required to make 10mL of 15μM stock solution. | |||
# The appropriate amounts of HAuCl<sub>4</sub> and BSA were massed separately and added to separate test tubes. | |||
# The appropriate amount of H<sub>2</sub>O were added to each test tube. (25mL to the HAuCl<sub>4</sub> test tube and 10mL to the BSA test tube.) | |||
# The test tubes were covered with parafilm. | |||
# The test tube containing HAuCl<sub>4</sub> was also completely covered in aluminum foil. | |||
# Then, using the m<sub>1</sub>v<sub>1</sub>=m<sub>2</sub>v<sub>2</sub> equation, the amount of each stock solution required to make 4mL mixtures with the Au<sup>3+</sup>/BSA concentration ratio of 60μM, 80μM, 100μM, 120μM, 128μM, 130μM, 132μM, 133μM, 134μM, 136μM, 138μM, 140μM, 160μM, and 170μM. | |||
# After the amounts of each stock solution was determined, the appropriate amounts of HAuCl<sub>4</sub>, BSA, and H<sub>2</sub>O were added to each test tube. | |||
# The test tubes were capped, covered in aluminum foil, labeled, and placed in the oven at 85°C at 4 hours. | |||
==Data and Calculations== | |||
* '''HAuCl<sub>4</sub> Stock''' | |||
'''FW HAuCl<sub>4</sub>''': 393.83 g/mol | |||
'''Theoretical Concentration of Stock''': 10mM | |||
'''Volume of Stock''': 25mL | |||
'''Theoretical Mass''': | |||
25mL × 10<sup>-3</sup> L/mL × 10mM × 10<sup>-3</sup> mol/mmol × 393.83 g/mol = 0.0985 g HAuCl<sub>4</sub> | |||
'''Measured Mass''': 0.0971 g HAuCl<sub>4</sub> | |||
'''Calculated Concentration''': 9862 μM | |||
0.0971g × (1/393.83 g/mol) × (1/25E-3 L) × 10<sup>6</sup> μM/mol = 9862 μM | |||
*'''BSA Stock''' | |||
'''FW BSA''': 66430 g/mol | |||
'''Theoretical Concentration of Stock''': 15μM | |||
'''Volume of Stock''': 10mL | |||
'''Theoretical Mass''': | |||
10mL × 10<sup>-3</sup> L/mL × 15μM × 10<sup>-6</sup> mol/mmol × 66430 g/mol = 0.00996 g BSA | |||
'''Measured Mass''': 0.0105 g BSA | |||
'''Calculated Concentration''': 15.806 μM | |||
0.0105g × (1/66430 g/mol) × (1/10E-3 L) × 10<sup>6</sup> μM/mol = 15.806 μM | |||
*'''Volumes of HAuCl<sub>4</sub>, BSA, H<sub>2</sub> required for various 4mL HAuCl<sub>4</sub>/BSA mixtures''' | |||
{| {{table}} | |||
| align="center" style="background:#f0f0f0;"|'''uM Ratio [Au/BSA]''' | |||
| align="center" style="background:#f0f0f0;"|'''''' | |||
| align="center" style="background:#f0f0f0;"|'''Volume [uL]''' | |||
| align="center" style="background:#f0f0f0;"|'''''' | |||
| align="center" style="background:#f0f0f0;"|'''''' | |||
|- | |||
| BSA||HAuCl4||BSA [μL]||HAuCl4||H2O [mL] | |||
|- | |||
| 1||60||253.07||147.93||3.5990 | |||
|- | |||
| 1||80||253.07||197.24||3.5497 | |||
|- | |||
| 1||100||253.07||246.55||3.5004 | |||
|- | |||
| 1||120||253.07||295.86||3.4511 | |||
|- | |||
| 1||128||253.07||315.58||3.4313 | |||
|- | |||
| 1||130||253.07||320.52||3.4264 | |||
|- | |||
| 1||132||253.07||325.45||3.4215 | |||
|- | |||
| 1||133||253.07||327.91||3.4190 | |||
|- | |||
| 1||134||253.07||330.38||3.4166 | |||
|- | |||
| 1||136||253.07||335.31||3.4116 | |||
|- | |||
| 1||138||253.07||340.24||3.4067 | |||
|- | |||
| 1||140||253.07||345.17||3.4018 | |||
|- | |||
| 1||160||253.07||394.48||3.3525 | |||
|- | |||
| 1||170||253.07||419.14||3.3278 | |||
|- | |||
| | |||
|- | |||
| ||||||4341.75||Total uL | |||
|} | |||
==Notes== | |||
*The stocks were made with the incorrect concentrations, so the reaction did not occur properly. | |||
*The stocks were made without the parafilm protection on the spatula. | |||
==Image of the Solutions Produced== | |||
[[Image:All.jpg]] | |||
*All the solutions from August 29, ranging from 60μM to 170μM Au/BSA concentration. The solution was made without the parafilmed spatula. THe solution spent 4 hours in a 85°C oven. |
Revision as of 12:14, 12 September 2012
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Objective
Description
Data and Calculations
FW HAuCl4: 393.83 g/mol Theoretical Concentration of Stock: 10mM Volume of Stock: 25mL Theoretical Mass: 25mL × 10-3 L/mL × 10mM × 10-3 mol/mmol × 393.83 g/mol = 0.0985 g HAuCl4 Measured Mass: 0.0971 g HAuCl4 Calculated Concentration: 9862 μM 0.0971g × (1/393.83 g/mol) × (1/25E-3 L) × 106 μM/mol = 9862 μM
FW BSA: 66430 g/mol Theoretical Concentration of Stock: 15μM Volume of Stock: 10mL Theoretical Mass: 10mL × 10-3 L/mL × 15μM × 10-6 mol/mmol × 66430 g/mol = 0.00996 g BSA Measured Mass: 0.0105 g BSA Calculated Concentration: 15.806 μM 0.0105g × (1/66430 g/mol) × (1/10E-3 L) × 106 μM/mol = 15.806 μM
Notes
Image of the Solutions Produced
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