User:Samiye Yaman/Notebook/Lab 581/2013/04/03: Difference between revisions
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==Description== | ==Description== | ||
'''Part A: pH Analysis''' | |||
*Add 50μL of phenolphthalein to 5mg hydrogel in 1.5mL buffer prepared on 03/29/2013. | |||
*Add 25μL bromocresol purple to 5mg hydrogels in 1.5mL phosphate buffer. | |||
* Add 75μL 0.02% cresol red to 5mg hydrogels in 1.5mL phosphate buffer. Allow some time for hydrogels to absorb indicators. | |||
'''Part B: Create concentration gradient for fluroescence calibration of microscope''' | |||
* Add 10μL FluoSpheres carboxylate modified microspheres in to 100μL distilled water. This is solution one. Take 10μL from solution 1 and place in to a seperate falcon tube. Add 100μL distilled water. This is solution 2. Solution 3 is created by mixing 10μL of solution from solution 1 and 100μL distilled water. Repeat the same process for creating solution 4 and 5. (Diluting each solution by 10) | |||
'''Part C: Preparing dilutions of dye containing hydrogels''' | |||
* Dilute 2mg hydrogels containing 30μL R6G (supernatant was previously removed) with 400μL phosphate buffer (solution 1). | |||
-Dilute each solution by half. (take 200μL solution from solution 1 and mix it with 200 phosphate buffer to create solution 3.) | |||
* Dilute 200μL 2mg of hydrogel solution containing dye in 1.5mL phosphate buffer (from 3/22/13) (marked with heart) with 200μL phosphate buffer (solution 1) | |||
- Dilute each solution by half. (take 200μL solution from solution 1 and mix it with 200 phosphate buffer to create solution 3.) | |||
'''Part D: Synthesizing more hydrogels''' | |||
* Add 0.5g (89,000-98,000 g/mol) PVOH in 6mL phosphate buffer into 2 beakers labelled as A and B. | |||
* Add 0.5g (89,000-98,000 g/mol) PVOH in 6mL phosphate buffer with 300μL 1mM R6G into 2 beaker labelled as C and D. | |||
* Place the beakers on a heat block at 110°C for 15 minutes. | |||
*Let them cool to room temperature. | |||
*By using blender, mix each hydrogels with 40mL safflower oil for 1-2min on lower setting of blender. | |||
*Shock freeze the blended hydrogels with oil by using liquid nitrogen and place in freezer at -20°C for 24 hours. | |||
*After in freezer for 24 hours, take them into room temperature for 4 hours.(cycle 1). The cycles are required. | |||
==Data== | ==Data== | ||
==Notes== | ==Notes== |
Revision as of 15:21, 6 April 2013
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ObjectionsDescriptionPart A: pH Analysis
Part B: Create concentration gradient for fluroescence calibration of microscope
Part C: Preparing dilutions of dye containing hydrogels
-Dilute each solution by half. (take 200μL solution from solution 1 and mix it with 200 phosphate buffer to create solution 3.)
- Dilute each solution by half. (take 200μL solution from solution 1 and mix it with 200 phosphate buffer to create solution 3.) Part D: Synthesizing more hydrogels
DataNotes |