When I dissolve the sodium bromate into acid the colour of the solution is different from usual. So I would like to know if there's a way to determine the sodium bromate.
Dear all, I have harvested fibroblast cells from R26p-Fucci2 mouse embryos (mouse line as described in this paper: https://dev.biologists.org/content/140/1/237) and cultured them on plastic,...
17 February 2021 3,368 2 View
I am working on a biosensing project on paper substrate, however, it is found that the RNase contamination occurs on the filter paper. Might I ask is there any method to clean the paper surface...
12 February 2021 3,926 3 View
Hi everyone, I would really appreciate it if someone can tell me when and why a raw fluorescence starts below zero. In the picture attached below the blue colour curve starts from a negative...
09 February 2021 4,642 3 View
This is a follow-up on an earlier question regarding mechanistics of vaccines: why current vaccines don't block transmission. In summary, they don't engage mucosal immune cells to produce IgA....
08 February 2021 8,321 3 View
In Abaqus I know that there are two methods for incrementation (Automatic and fixed incrementation). I want to control the incrementation by myself. I want to input the values of load increment...
03 February 2021 6,943 3 View
Dear all. I'm modeling the RC column with cyclic displacement by Abaqus-Explicit. The concrete model used Concrete Plastic Damage model. However I'm facing with a error about the excessive...
01 February 2021 7,726 1 View
Dear Researchers, My research team is conducting a eating disorder related research in Malaysia and we would like to use the Malay translated version of EAT26/40. I have tried to email the...
24 January 2021 8,925 2 View
I am facing a problem that cellular debris observed in my SHSY5Y cells. I have seeded the cells in DMEM media with 10% FBS in T-25/ 60mm dish (antibiotic used PEN-Strepand gentamycin). I have also...
17 January 2021 3,074 3 View
I have been trying to silence a gene of interest but I could not get silencing efficiencies beyond 50% My method of detection is via RT-qPCR and samples were extracted 48hrs post transfection. Are...
09 January 2021 3,404 4 View
Conventionally, the process of Stage II fatigue crack growth is governed by Paris law with less microstructural effect. When fatigue crack growth test was carried out for pearlitic steels ( both...
03 January 2021 7,075 3 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
Hi, I am running a size exclusion chromatography experiment with a buffer containing Potassium Acetate as a salt. I analyse these fractions through SDS-PAGE. After boiling my SEC fractions in...
01 March 2021 2,622 3 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
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
How to do acid digestion of soil sample with 3:1 aquaregia in an open vessel?
23 February 2021 3,053 7 View