Difference between revisions of "20211106 microfluidics"
From mn.fysikk.laglivlab
(Tag: Visual edit) |
|||
| Line 8: | Line 8: | ||
=== Adding new PDMS to wafer === | === Adding new PDMS to wafer === | ||
- Used 43.70g PDMS and 3.68 g curing agent. | - Used 43.70g PDMS and 3.68 g curing agent. | ||
| + | |||
| + | |||
| + | === Troubles with microfluidic chips === | ||
| + | We had a few problem with punching the chips: starting with Anniken's (?), after some time after plasma it seemed that the chip closed itself (the part facing the air, approx half way in the ). We then tried to re-punch holes out *from the top* which seemed to work. | ||
| + | To be sure, we cut out another chip (Thomas') but after plasma it turned out to be the same problem. We still managed to get tubes in, watertight. | ||
| + | |||
| + | ==== Why? ==== | ||
| + | - these PDMS chip were coming from the same wafer (broken BTW), which was covered which a very thick layer of PDMS | ||
Revision as of 16:13, 11 June 2021
Contents
Preparing the chip & plasma cleaning
- Cut out Vilde and Dag's chip designs.
- Made 1.6mm holes in the inlets&outlets
- Plasma cleaned
Adding new PDMS to wafer
- Used 43.70g PDMS and 3.68 g curing agent.
Troubles with microfluidic chips
We had a few problem with punching the chips: starting with Anniken's (?), after some time after plasma it seemed that the chip closed itself (the part facing the air, approx half way in the ). We then tried to re-punch holes out *from the top* which seemed to work. To be sure, we cut out another chip (Thomas') but after plasma it turned out to be the same problem. We still managed to get tubes in, watertight.
Why?
- these PDMS chip were coming from the same wafer (broken BTW), which was covered which a very thick layer of PDMS
