Gore-Tex is one commercially available.

Otherwise, when using any liquid through micro-channels, you want to degas
it as much as possible. One way is to put it into an ultrasonic bath for a
while while heating.

You might also use a surfactant to help the bubbles move along if they're
getting stuck to the channel features.

Mike


Dr. Michael H. Beggans
Naval Surface Warfare Center, Indian Head
101 Strauss Ave. Bldg. 302            Phone: (301) 744-1927
Indian Head, MD 20640                  Fax:    (301) 744-6406

-----Original Message-----
From: Laura Malatto [mailto:laura@inti.gov.ar]
Sent: Thursday, October 12, 2006 2:44 PM
To: General MEMS discussion
Subject: Re: [mems-talk] Bubble formation in mircochannels.


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