I have an unknown sample, where isophthalic or terephthalic acid could be there, how I can identify the exact acid ?

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How to get recent research on poultry production?

poultry production in nigeria

29 July 2024 5,518 2 View

Techniques regarding protein-protein interaction in vitro?

What techniques or assays will be used when a purified lyophilized powder is purchased from a company to study protein-protein interaction?

15 July 2024 1,598 3 View

What can I do if primer solution gives band in electrophoresis before PCR reaction?

Trouble 1: I ran a PCR reaction and found a low molecular weight band (100 bp) when doing electrophoresis. 1ng plasmid (OD260/280=1.84) was used as template. Final concentration of primers was...

13 June 2024 5,540 6 View

Please indicate whether you believe that the use of virtual reality has a positive or negative effect on people ?

Good morning, I am currently engaged in research in the field of virtual reality. I would be grateful if you could share your opinion on the subject. Your input is invaluable to me. Kind...

25 May 2024 8,567 5 View

Can bands of cell lysate be seen during SDS-PAGE?

I want to detect my target protein through WB and it worked well before. But now I could not get any signal for both my target and the GAPDH, so I ran SDS-PAGE. I expected many bands on the gel of...

23 May 2024 613 6 View

What is my problem when amplify a target gene from cDNA?

I want to copy a target gene from cDNA into a plasmid. The primers were designed according to the CDS sequence from NCBI. But when I performed PCR reactions I could not get any target bands. So...

15 April 2024 2,115 4 View

Can I incubate another secondary Ab after imaging with ECL during WB?

I found to use a wrong secondary Ab for my WB when I visualized it with ECL, can I wash with TBST for several times and incubate the right secondary Ab? Another question is why my bands are not...

16 February 2024 3,187 4 View

Qual è il ruolo dell’employer branding per una Employee Value Proposition di successo?

👋 Sto attualmente conducendo una ricerca finalizzata ad esplorare come le attività di employer branding possano permettere alle imprese di garantire una EVP (Employee Value Proposition) di...

17 January 2024 9,183 1 View

Questions about regulation of signal pathway through changing in protein expression level?

When I overexpressed a protein in a cell line, I found decrease of phospho-PLC (phospholipase C) at the protein level through WB. But when I knocked out the protein, there was no difference of...

10 January 2024 8,201 3 View

Did I use Cre correctly?

I want to use the Cre LoxP to knock out my target gene in a mammalian cell line. According to the mechanism, I need to add two loxP sequences at both ends of the gene through homologous...

21 November 2023 5,133 1 View

Separation of organic acids-HPLC?

Hello What should be done to separate and identify organic acids in HPC when their RetTime is the same?Like oxalic acid with Propanoic Acid.or acids that have a very close RetTime.

07 August 2024 8,782 3 View

Determining the worth of a point improvement in Hamilton Depression Scale?

Dear readers, Thanks for your attention. I am wondering about the health economic problem of quantifying the value of interventions which a) prevent, b) improve symptom profile and c) ultimately...

05 August 2024 3,246 1 View

Conjugation of PEG-Amine to an Amino Acid Using EDC?

I am attempting to conjugate PEG to an amino acid at the C-terminus, for the purposes of producing nanoparticles. I have been told that PEG modified with amine groups can be used for this purpose,...

31 July 2024 2,033 1 View

Is it possible to use a safer acid instead of monochloroacetic acid to convert bacterial cellulose to carboxymethyl cellulose?

Hi, researchers, Is it possible to use a safer acid instead of monochloroacetic acid to convert bacterial cellulose to carboxymethyl cellulose?

29 July 2024 4,570 0 View

My cfDNA extraction protocol using silica beads works with plasma collected in COD SAGM bags but not with plasma collected in K2 EDTA tubes. Why so?

I am currently performing cell-free DNA (cfDNA) extraction from plasma using an in-house developed kit that employs silica-coated magnetic beads. My protocol works effectively with plasma obtained...

28 July 2024 3,559 0 View

What is the Principle of Cysteine-carbazole-sulfuric acid reaction with glucose?

I have been looking for the principle of Cysteine-carbazole-sulfuric acid reaction in research papers and books, but couldn't find it. This reaction is mainly used for the quantification of...

23 July 2024 3,891 0 View

Can sulfuric acid be used to prepare anthrone reagent when it has oxidized and changed color in reaction to light?

Sulfuric acid has changed color to yellow.

16 July 2024 6,964 0 View

Qiagen circulating nucleic acid kit poor yield?

Hi, Attempted to extract cfDNA from a 4 mL plasma sample, with poor yield. Went through the manual in the section regarding poor yield, and feel that this does not apply. Some potential...

14 July 2024 7,475 1 View

How to prepare materials before protein-peptide or protein-protein docking?

Hi all, I am conducting research on screening peptides (20-35 amino acids) with potential for treating dengue fever through protein-peptide docking methods. In the protein database, I found the...

10 July 2024 8,037 1 View

How to purchase metabolites of pesticide standards ?

Penconazole 1. CGA 132465 2. CGA 190503 3. CGA 127841 Fluopyram 1. AE C656948-benzamide 2. AE C656948-pyridyl-acetic acid 3. AE C656948-carboxylic acid I have searched on sigma aldrich as well...

09 July 2024 3,414 2 View