Nuclear stain like DAPI and Hoechst stains nuclei and also reveals the presence of mycoplasma. So, my question is does PI stain along with staining the nucleus tell us the presence of mycoplasma?
I think the answer is not.
Mycoplasma is so small that it can't be easy detected under microscopy. Maybe mycoplasma isolation kits are more efficient.
Thanks Snow!
In general white opaque plates are recommended for luminescence, transparent for absorbance and black for fluorescence assays respectively. My question is if we can use black bottom plates for...
08 September 2019 5,934 4 View
I have to co-culture cancer cells with normal cells to check the efficacy to drugs target to cancer cells. In this regard, I am looking for a cell surface marker which can stain only cancer cells...
04 May 2019 7,392 1 View
I have to perform fluorescence based assays in 96-well plate using HEK-293 cells. The experimental procedure involves transfection in cells and then treatment with drugs for testing drug efficacy....
04 May 2019 5,056 10 View
I recently coated the 96 well plates with 0.1 % w/v (1:10) dilution of Poly-L-Lysine for seeding the HEK-293T cells. However, I found that the attachment of the cells to the surface is not...
04 May 2019 6,263 2 View
Hi, I wanted to know how much percentage of proteases constitutes in an enzyme family
03 April 2019 2,606 3 View
Enzymes are synthesised as zymogens and then make a transition to active form when required, is this true for every enzyme or are there any exceptions to that?
02 March 2019 1,554 4 View
I have expressed EGFP-N1 plasmid (1ug) in MCF-7 cells. Upon taking the confocal images under 40x oil I have seen the expression all over the cell? What is the possible reason for that? Can anyone...
01 February 2019 2,508 6 View
Why some cell lines are easy to transfect and some hard to transfect?
31 December 2018 9,583 3 View
Have to see protein-protein interaction in HEK-293 cells, where the donor GFP tagged protein and acceptor is RFP tagged protein. Please suggest me some good tips that I should keep in mind for...
31 December 2018 9,469 1 View
I have a vector pET23b with monomeric EGFP-6X His tagged cloned in that. The plasmid is transformed in BL21(DE3) cells. Kindly suggest me some good literature for the purification of the GFP-His...
31 December 2018 461 4 View
I am staining some brain sections stored in cryoprotectant that express a Histone H2B- GFP fusion protein that were generated ~10 years ago. I know I need to enhance signal with an anti-GFP...
07 August 2024 5,338 2 View
To compare positive and negative cell populations in flow cytometry, should I compare unstained cells with antibody stained cells? Or with the isotype control? Most papers show comparison with...
06 August 2024 6,728 6 View
Hi all, I was just wondering if anyone has experience with multiplexing a mouse monoclonal primary and a rat primary. I'm trying to multiplex by incubating them in the same well but was told by a...
06 August 2024 9,710 1 View
After immunohistochemistry of previously fixed in PFA and EtOH and then frozen 20 μm sections of zebrafish brain, DAPI staining is very weak (right) compared to the same sections stained without...
05 August 2024 9,637 2 View
Hi guys If anyone is currently working on aging cells, you guys would like to give me some advice. I'm testing against biomarker (SA-beta-Gal), I encountered a false positive in the control group...
02 August 2024 6,735 1 View
I am using a Bruker 600M solid-state NMR spectrometer with a Micro 2.5 microimaging system. The test sample is a tube of 1M LiCl aqueous solution, and the nucleus detected is 1H. I am trying to...
01 August 2024 9,227 1 View
Dear researchers. I tried using the IHC PROFILER in image j to quantify nuclear DAB staining. I followed the instructions in the original article by "Varghese F, Bukhari AB, Malhotra R, De A...
29 July 2024 2,229 0 View
Hello everyone, I am currently using washed human platelets to stain Annexin V as a procoagulant marker. Additionally, I am staining with PerCP-CD61 to identify platelet cells. So far, I have...
29 July 2024 8,624 1 View
I am running a western on HIV envelope protein. The size is around 50Kda and I am using rat anti-HA for the first stain and a second stain of mouse anti-CA. Primary antibody dilution is 1: 1000...
29 July 2024 6,484 5 View
Greeting How many events should be counted for the analysis of apoptosis with nuclear staining with Hoechst 33342 whit microscopy ? Are 100 events count sufficient and three repetitions for...
25 July 2024 7,520 0 View