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MEMSnet Home: MEMS-Talk: flowing in rhodamine in pdms channel
flowing in rhodamine in pdms channel
2009-09-20
김태진
2009-09-20
Peng Li
2009-09-20
Hong Chen
2009-09-21
Dirk Renckens - TNW
2009-09-20
Depue, Clayton - In-Q-Tel
2009-09-20
amit asthana
flowing in rhodamine in pdms channel
Peng Li
2009-09-20
I think you can try to use fluorophore labeled micro beads. The porosity
of PDMS is often much smaller than the diameter of these beads.


On Sun, 20 Sep 2009 09:03:00 +0900, 김태진  wrote:
> Hi all,
>
> I've been trying to flow in fluorescence die (Rhodamine) in a PDMS
> microfluidic channel to do some flow characterizations.
>
> The problem is, the vicinity of the pdms channel became bright as well
> after about 5 minutes.
>
> It almost seemed like that the fluoresent die was diffused into the pdms.
>
> Is there a way to solve this problem?
>
> Thanks!
>
> TJ

Peng Li
Research Assistant
Department of Mechanical Engineering & Applied Mechanics
University of Rhode Island
133D Kirk, 92 Upper College Road,
Kingston, RI  02881
Phone: (401) 874-2247
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