[mems-talk] Bubble formation in mircochannels.

[Laura Malatto]

Torsten Wagner wrote:

> That's a common problem not only for microchannels but also for 
> standard tubes. It will help if you construct a debubbler before the 
> microchannels. Heat up the liquid which you like to pump across your 
> microchannels slightly. This will dissolve gas inside the liquid which 
> might prevent bubbles later. You can use one of your microchannels 
> covered by a gas-permeable membrane and heat up this  structure by a 
> peltier element. Thus, the bonded gas in your liquid can dissolve and 
> pass the membrane.
>
> Thats at least a method I'm aware of in some commercial devices.


Hi Torsten!

What kind of gas-permeable membrane could be used? Are them commercial 
available?
I suffered same problems. If you have any link / paper related would be nice
Thanks

Laura