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Questions related from Lëonid Volkov
Hi, I am looking for a company operating in the field of artificial meat. By operating, I mean production or advanced stage of pre-production. I am looking for because we have some good solutions...
25 November 2022 7,224 8 View
I have seen in the literature that short chain poly-lactic acid (polylactide; PLA) oligomers are water soluble. But I am unable to find a commercial source of this type of oligomers. Does anyone...
01 November 2022 1,394 6 View
Can anyone suggest a mercury-free LED light source for fluorescence microscopy? I'm looking for the simplest and most economical replacement for mercury bulbs. Not the complicated stuff with many...
06 October 2022 6,034 3 View
For various reasons, I need to avoid DMSO with my cells. So I wonder if isopropyl alcohol (2-propanol) could be used instead of DMSO to create my stock solutions library? I have learned that the...
05 July 2022 3,612 1 View
Hello to all I observed a strange phenomenon with CHO-K1 following the change of serum batch (it is surely the toxicity of this batch but I am very curious about the possible nature of this...
22 April 2022 6,119 3 View
Greetings to all, I would like to extract as many lipid components as possible from a vegetable oil. In principle, all polar lipids and as many neutral lipids as possible. But I need to test this...
26 March 2021 8,747 2 View
I study amino acid transport through (and synthesis by) placenta in different species. I found the data about paired dam-fetus serum (plasma) content of AA in horse, sheep, pig etc but not in cow....
23 April 2019 5,008 1 View
Hello everyone! We have a highly viscous homogenate. It looks like a juice containing pulp, but we need to cold(!)-sterilize it. Of course, any "pulp" must be eliminated and only the "juice" will...
04 August 2018 518 10 View
Leica and Abberior say: ¨Please do not use Vectashield, Vectashield Hard set or (other) embedding media containing p-phenylenediamine as antifading reagent." (I do not understand why, but I have...
01 February 2018 2,547 7 View
I have to scan a non-transparent petri dish sized (in term of diameter and thickness) object. The colonies of fluorescent bacteria will be on its upper side. Thus, the UV excitation must come from...
08 April 2016 4,145 7 View
Good day, I found by the Google this phrase in the scientific discussion: Mice homozygous for the recessive Notch 1 mutation die as embryos. When the nucleotide sequences of the wild-type and...
13 March 2015 8,335 2 View