User:Moira M. Esson/Notebook/CHEM-581/2013/03/01: Difference between revisions
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==Microspheres== | ==Microspheres== | ||
*After the freeze | *After the three cycle freeze thaw method, the microsphere samples were removed from the freezer. | ||
*The microsphere samples were allowed to sit outside of the freezer for approximately 1 week. During this time two distinct layers formed, a layer of the aqueous microspheres formed the lower most layer and a top layer of organic safflower oil formed. | |||
*In order to obtain the microspheres the safflower oil needed to be removed from the vials. | |||
<br> | |||
General Protocol for decanting the microspheres: | |||
# All microsphere samples were placed on a flat surface and allowed to settle for approximately 15 minutes. | |||
# Without touching the vial or moving the vial containing the microspheres(so as not to disturb the fine particles), a glass pipette was used to carefully removed the safflower oil. The safflower oil was placed in an appropriate waste container. | |||
<br> | |||
==Observations== | |||
*Many of the prepared microspheres became a gel rather than retaining their sphereical shape due to the fact a higher ratio of PVA was present in the PVA safflower oil emulsion. In the future, very small amounts of PVA will be placed in the vials. | |||
*DSC will be run on both the microspheres and the gels. | |||
Revision as of 11:16, 14 March 2013
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> </html>Next entry<html><img src="/images/5/5c/Resultset_next.png" border="0" /></html> | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Objectives
Pressure tests using an unmodified pipette
Figure 1. Fluorescence of hydrogel samples modified with Lamponite clay using an unmodified pipette for pressure testing Figure 2. Fluorescence of hydrogel samples modified with NaMT clay using an unmodified pipette for pressure testing Figure 3. Fluorescence of all hydrogel samples using and unmodified pipette for pressure testing
Microspheres
Observations
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