fluorescin or rhodamine are very bright but you have to get these
from a bio-reagent supplier (try aldrich or sigma). If you are
in a hurry you can get food coloring for about $1.25 from your local
grocery store. You can mix these with water.

                                        -C. H. Mastrangelo
                                        -University of Michigan

On Wed, 10 Mar 1999, Sung Jin wrote:

> Dear MEMS community,
>
> I would like to test a microfluidic device.  For this I would
> like to render the fluid very visible, to a camera, like many
> famous pictures of coloured or fluorescent liquid in capillaries.
>
> My problem is that I do not know what kind of liquid does that.
> If anybody knows the answer, please help me.
> I would appreciate knowing the commercial name of the agent,
> and if there is any special procedures to use it (is it mixed
> in water?  or alcohol?).
>
> Thank you very much!
>
> Get Your Private, Free Email at http://www.hotmail.com
>
>