Hi all, After nearly a month of troubleshooting the fabrication of Whitesides Chamber we finally have the capability to generate a steady and linear gradient of molecules. In the presented case, we have generated a gradient of rhodamine 6G (R6G),…
Hi all, After nearly a month of troubleshooting the fabrication of Whitesides Chamber we finally have the capability to generate a steady and linear gradient of molecules. In the presented case, we have generated a gradient of rhodamine 6G (R6G),…
Hi all, this is Henry. Leeanna Hyacinth, an undergraduate student from the McNair program, has recently completed a joint project between the Waugh, Palis, and McGrath Lab to create a bioreactor to amplify the number of mature red blood cells.…
Hi all, After a brief hiatus from winter break and my paper writing Mike and i have resumed our work on fabricating the counetrflow system, and we do have a success. Fabrication: The counterflow system is constructed based on oxide-layer…
Hi all, the technique of UV Ozone bonding (of PDMS to glass, Si or pnc-Si) is now complete, serendipitously. Hsin from Miller lab want to bond PDMS to glass, they tried plasma oxidation treatment and it worked. The method is…
Hi all, For quite some times we have been trying to design a diffusion-based chemotaxis chamber that operates under an environment of 37 degrees Celsius in temperature. One main obstacle that we face is the evaporation of the 2 uL…
Hi all, After experimenting with UV ozone bonding of PDMS to glass, Si, and pnc-Si for the past few weeks with Mike, we have reached the following conclusions: 1. The bonding of PDMS to glass is always stronger than the…
Hi all, you might have read that we (Mike and i) have 100 % bonding efficiency in our latest PDMS-Si wafer bonding. On that same trial we have also successfully bonded PDMS to the new pnc-Si that Dave made for…
Hi All, Recently we have good results showing that we can bond PDMS to both glass and Si-wafer with UV Ozone treatment. We can even bond the PDMS to pnc-Si directly, although it is not clear whether the sealing is…