|
Objective
- Time to attempt making more beads
- We're ditching yesterdays attempts and going to try expand on Eleni's group. They were able to create ribbons of PVA-Clay however we would like to form beads. Here is their procedure notes.
Description
- A column was set up with Glutaraldehyde and hexane. Air is being bubbled through the column so in the attempt to mix the two
- PVA-Clay will be dropped down the column
Hexane Trial
- the PVA-Clay formed beads within the hexane and floated down the column. They did not crosslink fast enough if at all and they dissolved into the Glutaraldehyde.
Acetylnitrile Trial
- We needed a solvent that would still form beads with the PVA-Clay while being miscible in water. The PVA-Clay however was not forming beads within the solute but rather clumps.
Organic-Glutaraldehyde Solution
- We attempted to add acetone to Glutaraldehyde and then add hexane to get rid of the solvent layers. The solution was not hydrophobic enough to form beads however. When only a slight layer of hexane and stirring were applied, it yielded no good results.
- We have decided to abandon the beads and begin synthesis of ribbons
- We filled a column with acetone and 1.5mL of Glutaraldehyde
- we then dropped in the PVA-Clay
Data
Notes
This area is for any observations or conclusions that you would like to note.
Use categories like tags. Change the "Course" category to the one corresponding to your course. The "Miscellaneous" tag can be used for particular experiments, as instructed by your professor. Please be sure to change or delete this tag as required so that the categories remain well organized.
| 
Biomaterials Design Lab
Main project page
Previous entry Next entry
