11 September 2023 1 10K Report

berberin solvents and how i can solve it

More Fatemeh Akhond Solaei's questions See All
How can I regenerate a SCX column modified with Sulfonate group (Thermo 054995)? The colmun has lost its Resolution and peak to valley ratio?

The column is used in Ion Exchange Chromatography of Monoclonal antibodies and the method of analysis is based on pH gradint.

13 July 2024 7,462 1 View

Does sucrose interfere with the BCA reagent in peptide concentration assays?

Hello everyone! I am currently working on the expression and purification of an antimicrobial peptide that experiences reduced activity after each freeze-thaw cycle. To improve its stability, I...

10 July 2024 6,830 1 View

What is the reason of stacking DNA in agarose gel well?

we electrophoresis PCR product on 0.7% agarose gel at 120V for 1 hour, our target size is 5000 bp but our DNA stack at wells and do not com in to gelldo you have any suggestion for this?

02 July 2024 5,235 0 View

Is it possible to increase the intensity of UV-vis absorption of DNA EITH A LIGAND IN the groove BINDING mode?

Is it possible to increase the intensity of UV-vis absorption in the interaction of the groove connection mode?

29 June 2024 4,867 4 View

Hello, I wanted to know if it is a necessity to perform MTT test in three time points to evaluate the cytotoxicity of a metal alloy?

I am working on a magnesium based alloy, and i wanted to evaluate the cytotoxicity of my alloy with MTT assay. I want to know the reason why most of the researchers perform the MTT assay in three...

28 June 2024 2,570 1 View

Population coverage analysis for some MHC II alleles?

Hello everyone Does anyone know how could we determine population coverage of some MHC II alleles such as HLA-DRB3*02:02, HLA-DRB5*0101, HLA-DPA1*02:01-DPB1*05:01, HLA-DRB4*01:01,...

20 June 2024 2,155 1 View

Separating Wind Wave and Swell Parameters in Wavewatch III Model?

Hello, I am using the Wavewatch III model for my research . Could anyone clarify if it's possible to extract wind wave and swell parameters separately from this model?

12 June 2024 3,269 4 View

Depletion igg from serum?

Hi everyone, I wanna get a suitable protocol for depletion of IgG and other immunoglobulins from serum, without kits or chromatography but with chemical methods like ammonium sulfate. Can anyone...

10 June 2024 9,523 2 View

How many sample of serum need to validate proteomics data ?

Hi everyone, I wanna do proteomics of monkeys serums in 2 states, healthy and patient. How many monkeys in each group I need to run proteomics and validate my data from it? Do I deplete albumin...

04 June 2024 4,091 3 View

How do I western blot of serum proteins without any unspecific binding of secondary antibody to my blot?

Hi everyone, I have some important problems with my western blot against serum proteins. I have used secondary antibody conjugated by HRP that binds in unspecific manner to other proteins as same...

03 June 2024 5,993 8 View

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I need to dissolve stigmasterol for an animal experiment, it hasn't dissolved in either DMSO or vegetable oil. Can anyone recommend the best solvent?

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Why methanol and sulphuric acid used in the analysis of polyhydroxyalkanoates (PHA) by GC-MS?

Why methanol and sulphuric acid, used in the analysis of polyhydroxyalkanoates (PHA) methyl esters by GC-MS? Additionally, why do we typically use non-polar solvents in GC-MS?

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When making abraxane with Nab tech, why is 9:1 Chloroform&EtOH used as solvents?

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Convergence of absorbency values to determine the total phenolic content of several solvents?

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How Can I Resolve a Persistent Unwanted NMR Peak at 1.25 ppm?

Hello everyone, I am facing a consistent issue in my NMR spectra with an unwanted peak appearing at 1.25 ppm. This peak seems to vary with the amount of sample: it becomes more pronounced with...

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What is the suitable solvent of MIL-100 for chemotherapy?

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