cDNA library immunoscreening

[Rhonda Davey]

Hi

I'm having trouble immunoscreening my cDNA expression library.  I always seem 
to have agarose from the plaques sticking to the nitrocellulose filter, even 
when the plates have been chilled for an hour after the incubation has 
finished.  The agarose then reacts with my secondary antibody, and everything, 
including my vector control comes up positive.  The filters I overlay on the 
plates have been saturated with ITPG or TBS, and then blotted dry.

Can I leave the filter on overnight in the cold room to stop the plaques 
lifting? 

Thanks

Rhonda Davey