Immunofluorescence

( www.abnova.com ) - Immunofluorescence is a technique to visualize a specific protein or antigen in cells or tissue sections by binding a specific antibody chemically conjugated with a fluorescent dye. We use the indirect immunofluorescence staining to perform cells fixed on slides and examine under a fluorescence microscope. More videos at Abnova www.abnova.com

[@missroua6862]

simple and clear, thanx a lot

[@noratiqahjusril6981]

how to deal with cells culture at different concentrations using this method?

[@roaahashim9373]

amazing ! lots of thanks

[@wiraniaritiasnitha9419]

Thank you

[@redSHIFT69]

thanks abnova

[@alexandreluizborgessilva6018]

to fix the antigen, can I replace the paraformaldehyde with formaldehyde?

[@BaughbeSauce]

wow. so many steps!

[@bish4008]

Thanks

[@danmiller2177]

Thanks!!!

[@saivikra]

thanks

[@moshiif]

Thanks a lot :)

[@user-qh5ch3wy3e]

Could u please tell me what is the membrane applied for antibody incubation?

[@ericwang1245]

parafilm

[@boyinalabcoatboyinalabcoat393]

Why to use blocking solution before the primary antibodies? Is there not a chance you will be blocking the protein you want to find? Or it is just worth it, because even if you block some of the target proteins, the primary antibody will just do better in finding the not blocked target proteins, than finding inespecific conections?

[@TahseenRaza_KT1983]

If you do Blocking properly you will get good result with nonspecific background. so better do blocking and you will get the clean result and you do not have to worry about unspecific binding that may give you false positive result. hope you will get it. Thanks

[@strivingforexcellency]

To make epitope more visibility

[@hlainghlaingmyint645]

Thanks! Tokyo Institute of Technology

[@flowehghr108]

Thanks! What is the white thing you put the cover slip against at 1:20?

[@yfn9408]

parafilm

[@rajinashakya1800]

@@yfn9408 m confused, if parafilm is placed on top of the cells ...then how primary antibody will interact with the cells crossing parafilm??

[@rehabhamdy3341]

thanksssssssss a lot

[@catalinarubio8850]

thank u ! why do u use parafin?

[@andreas.chrysostomou]

Catalina Rubio PFA is used to fix the cells and its inner structures so you can target with antibodies and be able to see them under the lens

[@jakku71]

Just before mounting, do the cover slips have to be dried? Or can we mount the coverslips wet?

[@Daniel-wb6yl]

do you have the answer already now bro? I’m also having the same question :(

[@dr.tranngocthien]

same question

[@Daniel-wb6yl]

It's best to leave it wet. maybe if there's a lot of water (maybe, a drop?) on the opposite side of the cell side, you can tap that side lightly to a kimwipes so the droplet won't affect your mounting. If we were to leave it too dry, the cells can be destroyed, sheared or shrunk. hope it helps. @@dr.tranngocthien

[@jujetaly322]

Wats the pink solution that is removed at the beginning of the video?

[@tenzinglobsang8587]

The culture media most probably

[@RohithBasu]

kool !!

[@HKheir]

this is very helpfull,thank u soo much :)

[@aaryashkushwaha9450]

Hiii

[@neuroudec]

mmmm I'm gonna follow this exact protocol right now

[@shash1810]

what do u mean by primary and secondary antibody

[@iNailHD]

A first antibody is needed in order to recognize the protein you want to observe. Then, you use a specific second antibody which is gonna recognize the first antibody. In the second antibody, there is a fluorochrome ( it is fluorescent in the microscope ). I think i didn't say something wrong, but i'm not sure, also sorry if my english is quite bad :)

[@SoulBladeM]

weird, this is nothing like the stuff in my micrioblogy textbook.

[@TwiSTeDBeAnS]

Probably because this is a mounting procedure for immunostaining eukaryotic cells. Prokaryotes don't have any organelles or other large structures inside the cell to fluorescently label and look at under a microscope so there is no need to go through with a permealization procedure like this. Even if you wanted to label something in the cell membrane/wall, bacteria are small enough that it would be very hard to distinguish puncta with the resolution of traditional microscopes, so you wouldn't really get much useful information by immunostaining. In a microbiology setting, it is typically much more useful, cheaper, and easier to place cells directly from culture to a slide, fix them to the slide with a bunsen burner, and use common stains (carbol fuschion, crystal violet, malachite green) to see bacteria and any potential structures.

[@TJ__23]

th u :)

[@shagunsharma2812]

Wooooow ♥️

[@marinaveras5156]

Muito bom, show, #Br

[@TheJdhisto]

Thanks

[@afshinpirnia1848]

thanks