Similar Posts
Cellulose C-Dot separations
I used 100kD Millipore Celllulose membranes to separate the 2 C-dot particles. The results are similar to those I’ve obtained with pnc-Si; the 10nm particles pass while the 30nm ones do not. Cy5 10nm particles: Sulforhodamine 30nm particles: Here are the sieving ratios: Particle Ratio 10nm (abs) .60 10nm (fluor) .59 30nm (abs) .02 30nm…
Parylene Nanopockets using Nanosphere Lithography
This initial aim of this project was to obtain “pockets” with sub-100nm pores, while the top opening is much larger. Dr. Carter is the mastermind behind this project. The following simple fabrication process diagram explains the current approach. After initial failed experiments for obtaining very small openings, Marcela and I aimed for larger bead sizes…
Air-Blood Barrier TEER Results
I finished 3 independent experiments of air-blood barrier co-cultures – these consist of bEnd3 endothelial cells on 1 side and RLE-6TN lung epithelial cells on the opposite side of the membranes. We didn’t expect these cell types to potentiate TEER in anyway (like we expected glial cells to tighten endothelial barrier function). However, our collaborators…
W613 Discoloration
Given the mixed results of discoloration of RTPed samples from W613, which include no discoloration until 7 days (when the experiment was started within 2 hours of RTPing), and discoloration within 2 days (experiment started 8 days after RTP) I ran another discoloration test. This time I started the experiment within an hour of RTP,…
pH and Salt test on pncSi
We have been wondering about the reason for discoloration for a while. This could be due to the pH of the solution or the concentration of the salts in the solution. To narrow down our vision on this, first we tried using solutions with different pH values ranging from 4 to 9 in room temperature….
pnc-Si degrades into silicic acid
Over the past month, I’ve posted some results of a colorimetric assay for silicic acid. Previous posts are here and here. These results showed that the assay detected silicic acid after pnc-Si and PSi degraded. However, bare silicon wafers also yielded silicic acid, according to this assay. Since pnc-Si samples have the Si well-side surface,…