Hi all,

   Is it advisable to treat the surface of PDMS with H2O2 + H2SO4 (1:1) to
utilise the nascent O2 for changing its surface from hydrophobic to
hydrophilic? I am getting some problem with this procedure. Possibly some
surface reaction is taking place.

   Please give some suggestions.

   Thanks in advance,
   Debashis Maji.



On 9/24/08, Mohd. Yusuf  wrote:
>
> HI,
>
>     If you dont have O2 Plasma or anything similar RIE equipment then best
> is to keep that sample under water for few hours or days. This helped me
> to a certain extent but not much.
>
> Regarding SU8 i tried that too but could not get good results. I think
> you will need O2 plasma exposure for 30-60sec to get SU8 on PDMS.
>
> All the best.
>
> Yusuf

--
Debashis Maji, JRF,
School of Medical Science & Technology,
IIT Kharagpur, INDIA - 721302.