You can use a solvent on top of your fluid to lower surface tension and the
bubbles may be released.

Presumably the bubbles are in their at 1 atmosphere. If the fluid you are
working with cures to a solid, you can cure it under pressure. The bubbles will
collapse under a small increase in pressure.

Regards
Steve Adamson

-----Original Message-----
From: "Jesse D Fowler" 
To: "General MEMS discussion" 
Sent: 3/18/08 8:16 AM
Subject: Re: [mems-talk] Numerous bubbles in microPIV particle solution

You can either boil it, or put it under vacuum.


Vishwa  writes:

HI,

I use 1um fluorescent particles from invitrogen for my microPIV experiments.
I mix the particle solution in nanopure water. The nanopure water is
sonicated for about an hour using Branson 1510 soncator. I then add a bit of
Tween20 to the solution and then mix the particles into this liquid. The
problem is that there are way too many tiny air bubbles in the solution.
Have any one of you faced this problem and what can I do to get rid of
this problem.