Hi all,
I am currently planning an experiment that involves viewing E. coli cells tagged with gold-conjugated secondary antibodies using a scanning electron microscope, and I am running into the issue of cost for primary antibodies. I might have the option of using primary antibodies previously purchased for Western blots, but I am unsure if these antibodies can also be used for SEM imaging. I do not yet know enough about the chemistry and reactivity of antibodies to answer this question, thus I find myself here!
On a related note, if anyone has any recommendations of good websites to purchase primary antibodies for E. coli that work with SEM, I would love some! I have found a few websites, but each of them only has 2 or 3 antibodies for this purpose.
Thanks,
Joel
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Agree with Yannick. However, some antibodies work for both WB and imaging applications. A relatively easy way to test a primary ab for imaging is usually by light (fluorescence) microscopy, using applicable secondary ab (fluorophor conjugated). Also keep in mind that most ab do not bind after fixation with standard glutaraldehyde concentrations used for EM.
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