Week 8

Tons of SEM this week. I finished the 7 day samples and the 28 day samples. Because the biofilms are so thick at 28 days, they mostly obscure the plastic except where they are flaking off after air drying. I cannot put anything that flaky into the SEM, so I'm making sure to spray it off thoroughly, but I'm not happy with the results. I'm going to be using different protocols going forward. I'm excited to be extending the time study, and I want to get it right before we get to the 56 day samples. Below is a picture of some of our plastic disks mounted on studs. You can really see the flaking.