After a few more revisions of the micro pump, I performed a significantly more thorough characterization. Flow rate was determined as before using a horizontal capillary of known volume and a stop watch. A extremely small thermocouple was inserted into the PDMS substrate directly adjacent to the fluid outlet channel emptying the…
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), which is a fluorophore that allows us to visualize and confirm the existence of the…
Finally on Friday all the pieces came in that we ordered to connect the peristaltic pump tubing to the 238umOD capillary tubing. This is our first order, after last weeks meeting we ordered a smaller OD capillary tubing (164um) with the same 100umID. I connected all the pieces and attached the micropump to make sure…
