[Histonet] avidin/biotin blocking???

[Eva Permaul]

Good afternoon out there in histoland,
I am trying to find a cheaper alternative to the avidin/biotin blocking 
system we are using now so that we can use it for larger bulk staining 
cases. Right now we only use it for small hand staining cases.
I read somewhere that there are those who make these reagents 
themselves. Would anyone be willing to share their recipes and how do 
they compare to company bought ones?
Thanks for your help,
Eva Permaul
Georgetown University