cellophane

[rsg]

hi, I heard of a technique to improve sporulation in culture /germinate by using cellophane sheets on top of the agar plate. I am searching the web for such cellophane sheets that will fit a 90mm petri dish but can't find. anyone know where I can find round cellophane sheets in this size?

thanks.

[JackBean]

why don't you make them by yourself?

[rsg]

thanks for the reply. if I cut them I will then have to autoclave them, I was hoping to avoid that.
I now think I managed to find two companies that sell cellophane discs (Bio-Rad andcannings packaging), need to check the sizes and sterility.

[JackBean]

the thickness may be crucial. In my last experient, nothing grew on the cellophane