This week in lab, we prepared our first samples of hydrogels. First, we created a solution of sodium alginate by mixing it in water. Since no scales were available, the amount used was estimated in order to try to approximate a 1% solution. This solution was added to the calcium chloride to produce beads. The experiment was immediately successful, despite the fact that precise measurements and tools were not used. We acquired more familiarity with how to create hydrogels and will be able to use that knowledge to be able to perform the large amount of mixtures we will need to do when we perform our actual experiments with precise, varying concentrations.
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| This is a bead produced from mixing sodium alginate, calcium chloride, and tap water displayed at the tip of a pipette |
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| Glen showed off the gel forming in the test tube. |
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| The gel was removed from the test tube and placed in the cap. |
