Hi Joe,

we used thin SU-8 films on glass substrate and observed a significant
background fluorescence strongly dependent on the SU-8 thickness. Use as thin
SU-8 layers as possible in order to increase the signal to noise ration.

Marie R., et al., "Immobilisation of DNA to polymerised SU-8 photoresist",
Biosensors and Bioelectronics, Article in Press (2005)

cheers!
Silvan

On Thursday 14 April 2005 21.22, [email protected] wrote:
> Hello, I'm sure this question has been asked before, but I was wondering if
> anyone has any knowledge about background fluorescence issues with SU8 or
> PDMS. Is background fluorescence a problem for either of these materials if
> I want to view fluorescent particles flowing on top of them?