Preparation of EDTA-
Citric acid solution in water.
They do not react chemically.
As a former management practitioner, I recall a generally accepted view that changing organisational culture is difficult, so you should only attempt it if the organisational change that you are...
27 February 2021 2,595 8 View
Hello, I am running a sandwich-type ELISA where I am trying to inhibit a protein-protein interaction using small molecules. For each experiment, I determine my Z' (Z-prime) to determine the...
23 February 2021 7,429 1 View
Hello, I am performing a western blot of my SARS-CoV-2 Spike-pseudotyped lentiviral particles. I denature my virus by adding concentrated virus to 2X Laemmli buffer at 1:1, then boiling for...
17 February 2021 4,844 4 View
Hello, I want to control the temperature of my ELISA plate during incubations to get consistent results. In general, what is the best temperature to coat the plate with antibody? I have been...
16 February 2021 2,377 7 View
Hi, I'm trying to merge files from a data base of 20 files, each containing about 4000 subjects. Unfortunately the ID numbers are actually a combination of numbers and letters (e.g., b1458219)....
15 February 2021 5,833 3 View
Good Evening, My name is David Marshall and I am Doctor of Management Student at Colorado Technical University Online. I just recently received approval from the IRB to start data collection on...
08 February 2021 346 7 View
I know colorimetry has been the standard way by way of measuring the concentration of a particular compound (solute) in a colored solution (solvent or measure quantities of a particular compound...
08 February 2021 2,673 1 View
Hello, I have recently run a western of Vero cells for ACE2. I detected ACE2 at the correct size, but it presents as a double band. The sample was prepared by lysing cells in 1X Laemmli...
07 February 2021 6,973 3 View
Hello, I am western blotting SARS-CoV-2 spike protein from lentiviral using an antibody against S1. To prepare samples, I mixed concentrated lentivirus 1:1 with 2X Laemmli buffer and boiled...
07 February 2021 3,643 4 View
Hello, In my sandwich-type ELISA which is testing for small molecule inhibition of a protein-protein interaction, it seems that DMSO percentage and dilution protocol are important. I...
31 January 2021 6,771 1 View
I'm involved in a study of odor control technologies for municipal wastewater treatment plant. One of the control options involves a chemical 2-stage (acid/alkaline) packed bed scrubber. The...
03 March 2021 3,661 2 View
I am try to make the Paal Knorr reaction between 2.5 hexnedione and 6-amino hexanoic acid, my problem is type of solvent to use, because 6-hexaminohexanoic acid is soluble in water but I am not...
02 March 2021 4,443 2 View
Hi all, I need to cleave the ester in Ethyl 2-amino-1H-imidazole-5-carboxylate to make the carboxylic acid and retrieve the product from solution to use in downstream applications of linking to...
01 March 2021 8,766 3 View
Also when RHAMM binds hyaluronic acid, they get internalized, will RHAMM also be degraded? Or both CD44 and RHAMM will be transferred back to the cell membrane? Asking for breast cancer cell line...
01 March 2021 8,169 2 View
I am doing a acid and a chiral amino alcohol reaction using DCC and HOBT in DCM or THF? Can anyone suggest me how to remove DCU and HOBT from a reaction mixture??
28 February 2021 2,153 1 View
hi everyone, I'm interested in the field of vaccine design specifically multi-epitope cancer vaccines , I want to know if there is a minimum and maximum number of epitopes we could use in a...
27 February 2021 3,882 3 View
based on what I've studied on multiple papers, for peptide and protein identification Alpha-cyano-4-hydroxycinnamic acid (CHCA) is an appropriate matrix to use, I also know that the CHCA powder...
26 February 2021 6,799 3 View
I am working with Polyacrylic acid (100.000Da) and instead of water, I need to use another solvent (dioxane) to dissolve PAA. However, because of the high molecular weight, it's quite hard to...
25 February 2021 2,225 5 View
The limit test I'm referring to is USP method II. In this procedure you need to dropwise add 6N of NH4OH to the sample until it the pH is alkali. After that you need to dilute and add HOAc until...
23 February 2021 2,049 3 View
To do liquid biopsy and look for specific gene expressions there are so many published papers. Thera are different protocols and procedures used to isolate circulating cell free RNA or mRNA from...
23 February 2021 7,326 5 View
