Which are the incubation conditions for a biotinylated antibody with a streptavidin coating?

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Which is the best mitochondrial potential dye for primary cells?

Hi! I am wondering if someone can recommend me a good dye for measuring mitochondrial potential. I have used TMRE with good results in the past, but I have heard also about Mitoview. I would use...

12 January 2021 4,200 4 View

How to analyze sodium lauryl sulfate using HPLC-RID?

Hi, I am analyzing the content of anionic surfactant: sodium lauryl sulfate (SLS) in commercial detergents using HPLC-RID/refractive index detector. I used column Agilent Zorbax Eclipse XDB C-18...

15 November 2020 1,405 2 View

How do I test for gender differences in Spearman rho correlations?

I want to explore if there is a gender difference in a correlation between two ordinal items. I have calculated spearman rho within gender for the items, but I now need to test if the correlation...

09 October 2020 970 13 View

How to get rid of Matrigel during enteroid passaging?

Hello. I am trying to generate monolayers from cow enteroids. The protocol I am following involves 0.5uM EDTA and Trypsin-EDTA 0.05%, each enzyme is applied in two different steps. But for some...

10 March 2020 1,805 1 View

Is there a way to edit the citations in MENDELEY so it's in the order of citation in the text body instead of Author?

Does anyone know how to change the citation style in Mendely in order to sort the references according to the order of citation in the paper? So that in the text is displayed only the number (eg....

01 January 2020 746 2 View

How to avoid impurities in immunoprecipitation with magnetic beads?

Hello, I need to extract an antigen from human serum. I tried with streptavidine-coated magnetic beads and a pair of biotinylated antibodies. Then I followed the elution procedure, as recommended...

09 September 2019 6,947 4 View

How to analyze alkyl distribution of Methyl Ester Sulfonate / Sulfonated Methyl Ester?

I need to analyze the alkyl distribution of Methyl Ester Sulfonate to know the molecular weight of my sample. I tried to use gas chromatography to do this. My method was to reflux the sample first...

14 July 2019 2,133 4 View

Can you recommend me some articles that dealing with the electronic transitions of toluene?

Hello! I'm working on assigning absorption bands to UV-vis spectra of unknown matrix. I think some are due to the presence of toluene, but I can't find any article that describes the electronic...

19 March 2019 8,119 3 View

What are these spheres created by genetically modified Ralstonia eutropha after fermentation of hemp?

Hello microbiology researchers working with Ralstonia eutropha. The organism we have created contains two genes that allow R. eutropha to ferment hemp and produce P4HB. When we began the culture...

13 November 2018 3,838 3 View

Why Protein standards in SDS-PAGE are not aligned in molecular weight?

Hi everyone, I wanted to compare 2 protein standards (from the same company) to decide which one to use but after I found that the location of molecular weights of the two different standards does...

08 August 2018 6,562 5 View

Why does blocking with my immunogenic peptide cause nuclear fluorescence in ICC?

Hi all, I am validating a polyclonal antibody raised against human ANT4, through WB and ICC. In most of my controls, the antibody shows very little off-target binding, but when I pre-incubate the...

03 March 2021 5,999 3 View

Buffer to disrupt platelet alpha granules for PF4 quantification?

Hello! I want to quantify by ELISA the secreted (from platelets poor plasma) and the non-secreted (from platelet lysate) PF4 before and after TRAP stimulation. I will use the ELISA from R&D...

03 March 2021 1,499 2 View

Does the pressure(-600 mmHg) affects pH?

When I conducted the degassing experiment using decompression under anaerobic condition(and I used ferrous based chelating agent), the oxidized ferric were observerd. So, could you tell me the...

03 March 2021 4,892 5 View

Buffer Exchange using column packed with sephadex G-25 effect on protein concentration?

Hello, If i am doing a buffer exchange for an antibody of 1mg/mL, does the elution lose protein in the process of buffer exchange? For example, if i flow through 500 uL of 1mg/mL sample, and...

03 March 2021 6,299 3 View

Have someone successfully used the ER alpha (Santa Cruz sc-8002) antibody in immunostaining ?

Santa Cruz now recommends this new antibody (F-10) but I can't find a publication using this reference. I'm working on human et non human primate hypothalamus and so far, it doesn't work. Is...

02 March 2021 10,003 2 View

Sample dilution for quantitative analysis using ELISA?

If the detection range is in ng/ml but the reference range is in ug/ml for a molecule or protein in serum or plasma .how to dilute and what is the initial volume to be taken for quantitative analysis

02 March 2021 7,670 3 View

How optimize the Size Exclusion Chromatography?

Hello! I'll do a size exclusion chromatography, but I only have an open column, and I'll perform the peptide extraction from yeast, using buffer lysis (sodium phosphate 50 mM/NaCl 30 mM/DNAse and...

01 March 2021 2,215 2 View

Issues with Permeabilization during Flow Cytometry?

Hello Everyone. Currently I am working to characterize macrophages in the myocardium after ischemia-reperfusion injury in rats. Due to the low total cell number isolated from rat hearts I can...

01 March 2021 3,867 3 View

Does anyone know an alternative product for cardiac Troponin T antibody for Immunofluorescence (Thermo # MA512960)?

We have been using Thermo Fisher anti-cardiac Troponin T antibody for immunofluorescence staining in FFPE mouse heart sections but it was recently discontinued. The literature shows it to be the...

01 March 2021 4,937 1 View

Why are my bands weird in this Agarose gel?

Can someone please give me some possible things that could go wrong? Here is my recipe: 0.5g Agarose 50 mL of TAE 1x 1 uL ethyl bromide. Gel was run at 100V for 1 hour. The buffer used is also TAE.

01 March 2021 9,952 3 View