Re: AW: [Histonet] Chemicals that inactivate the primary antibody

2009-05-16 Thread TF
But the heat also damage the fluorescnece... u need specific amplication kit anyway. 2009-05-17 TF 发件人: Gudrun Lang 发送时间: 2009-05-17 02:00:18 收件人: ti...@foxmail.com 抄送: histonet@lists.utsouthwestern.edu 主题: AW: [Histonet] Chemicals that inactivate the primary antibody For doublest

AW: [Histonet] Chemicals that inactivate the primary antibody

2009-05-16 Thread Gudrun Lang
For doublestaining the primary undergoes denaturation through a second HIER-step. The second secondary ab doesn't bind to the first primary. Therefore the binding sites must have been destroyed by heat in retrieval-buffer. Gudrun -Ursprüngliche Nachricht- Von: histonet-boun...@lists.utsou

Re: RE: Re: [Histonet] 70% alcohol fixation of brain

2009-05-16 Thread TF
I did try the frozen section from fresh tissue...and fix them in cold acetone for 10 min, transfer to cold PBS for 30 min, then wash in PBS at RT, begin IHC. But the tissue quality is really to bad. You always saw pieces of tissues floating, fall in to small pieces and gone when you wash

Re: Re: [Histonet] Chemicals that inactivate the primary antibody

2009-05-16 Thread TF
Hi, but I dont want to destory everything I am trying to see if I can prevent the binding of another 2nd antibody to the primary antibody for the first antigen! There fore you can perform double staining from same sepecies-derived primary antibodies! 2009-05-17 TF 发件人: Rene J Buesa

RE: [Histonet] CD25

2009-05-16 Thread Patsy Ruegg
The NSH IHC Resource Group is also a good source for info on IHC, NSH members can join the group online at www.ihcrg.org Patsy Ruegg, HT(ASCP)QIHC IHCtech, LLC Fitzsimmons BioScience Park 12635 Montview Blvd. Suite 215 Aurora, CO 80010 P-720-859-4060 F-720-859-4110 email pru...@ihctech.net websi

RE: [Histonet] Embeeding frozen tissue in paraffin

2009-05-16 Thread Patsy Ruegg
No you need to thaw/fix in formalin or alcoholic fixative in order to process and embed in paraffin. Patsy Patsy Ruegg, HT(ASCP)QIHC IHCtech, LLC Fitzsimmons BioScience Park 12635 Montview Blvd. Suite 215 Aurora, CO 80010 P-720-859-4060 F-720-859-4110 email pru...@ihctech.net website www.ihctech.

RE: Re: [Histonet] 70% alcohol fixation of brain

2009-05-16 Thread Patsy Ruegg
U would be better off freezing the brain unfixed than trying to fix in alcohol and freeze it, alcohol fixation is not recommended for freezing tissue. Just freeze slices of the brain or a whole rat or mouse brain and then make sections and fix the sections in alcohol/acetone mixture. Sectionin

Re: [Histonet] Chemicals that inactivate the primary antibody

2009-05-16 Thread Rene J Buesa
Try bleach and you will destroy everything! René J. --- On Sat, 5/16/09, TF wrote: From: TF Subject: [Histonet] Chemicals that inactivate the primary antibody To: "Histonet@lists.utsouthwestern.edu" Date: Saturday, May 16, 2009, 12:48 PM Hi all, just wonder what kind of treatments/chemicals

[Histonet] Chemicals that inactivate the primary antibody

2009-05-16 Thread TF
Hi all, just wonder what kind of treatments/chemicals can complete block the binding of 2nd antibody to binded primary antibody on antigen? I tried HCl , but does not damage all the primaryantibody binding sites - i can still see staining pattern finally. 2009-05-17 TF _