[Histonet] brazilin

Geoff McAuliffe mcauliff <@t> umdnj.edu
Tue Aug 30 11:34:28 CDT 2011

Hi Vanessa:

I tried "Brizilliant" several years ago. I purchased the dry powder 
since I have been mixing my own stains since the 1970's. I even called 
the vendor as I was unsure about the identity of some of the 
ingredients. The results on formalin fixed, paraffin embedded rodent 
tissues were disappointing, a dull orange not bright red. You might have 
better results with the pre-mixed stain. Perhaps they wills send you a 
small sample to try on your material.


On 8/30/2011 9:15 AM, Vanessa Orsini wrote:
> Hi everyone,
> I'm Vanessa and i'm quite new in the histology field so i need some help...
> i'm having problems with a LacZ staining on mouse fresh frozen tissue. I managed to get a nice staining also if I think it's a bit variable but I cannot find a good counterstain!!
> I tried the nuclear fast red but it's not stable in an aqua-based mounting medium and if I do the acohol row before mounting with pertex the morphology of the sections is damaged and the lacz staining is a bit washed away (a problem if the Bgal expression is low)
> I then tried with ematoxilin, the staining is stable but it's more difficult to discriminate between the blue of the lacZ and the blue of ematoxilin.
> I find out that the brazilin is a red ematoxilin so i decided to try this one but once the powder arrived i didn't received any instruction for dilution with it I couldn't find anything on the net.
> Does someone have experience with brazilin?
> or do you know some other red counterstaining that I could use?
> Thanks a lot
> Vanessa
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Geoff McAuliffe, Ph.D.
Neuroscience and Cell Biology
Robert Wood Johnson Medical School
675 Hoes Lane, Piscataway, NJ 08854
voice: (732)-235-4583
mcauliff <@t> umdnj.edu

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