This week, we continued testing from the previous week. A control group of ordinary loaded calcium alginate beads were placed in a neutral and acidic environment as well; it serves as a baseline for our chitosan-coated beads. A video demonstrating the diffusion rate was recorded as the final deliverable, but if there is time, we would like to increase the number of beads tested to achieve more visible results. We also worked on the final presentation; currently, only the introduction and methodology were completed.
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| The four groups: Alginate beads in water, Chitosan beads in water, Alginate beads in lemon juice, Chitosan beads in lemon juice |
As it can be seen, the alginate beads diffuse the fastest in water. Alginate beads also diffuse at a reasonable rate in lemon juice, although slower than water. Chitosan beads diffuse a little bit in lemon juice, but they don't diffuse at all in water.
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| Chitosan Beads in Lemon Juice |
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| Chitosan Beads in Water |
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| Alginate Beads in Lemon Juice |
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