How to prepare the caliberation curve of methyl orange? What is the procedure for the preparation of the standard solution of methyl orange?

08 March 2022 1 4K Report

Calibration curve methodology from APHA

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Science method

Which detection method is better for an ELISA-based assay: colorimetric or fluorometric?

Hello, I am planning to perform an ELISA-based assay to quantify the percentage of genomic methylation (5-methylcytosine) in human embryonic stem cells. I've been searching for some kits and I...

16 February 2021 8,389 3 View

Would bisulfide sequencing result be affected if the tissue is fixed by perfusion?

I am looking into DNA methylation of mice as an aging marker along with other assays and recently I added brain IF to the list of assays. For this, I need to fix the brain by transcardial...

09 February 2021 9,012 3 View

P53 detection in methylated and non methylated samples?

Hello everyone. I am about to search for the expression of genes including p53 in methylated and non methylated HPV samples. Should I extract DNA from the methylated samples and use SYBR green...

04 February 2021 2,749 3 View

Can someone explain why a methyl in phentolamine mesylate presents two correlations for 13C-HSQC, around the region it should appear?

Instead of appearing one single correlation of the signal of the carbon at 20.9 ppm (#11 in the attached figure), aligned to hydrogen at 2.29 ppm, it appeared two correlations (2,32 and 2,26 ppm)....

16 January 2021 4,774 2 View

Do I need to make a special plasmid for bisulfite methylation test?

I have an inducible expression of the enzyme in a newly derived bacterial strain, and methylation may be affected. I want to test methylation efficiency with a bisulfite kit. The kit is the EZ DNA...

06 January 2021 7,218 2 View

HPLC separation for methyl salicylate, camphor, thymol and menthol?

I have been recently trying to develop a method to separate the above compounds. Most methods tried were adapted from literature using RP C8 or C18 column with ACN/MeOH and buffered water at pH 2...

28 December 2020 4,426 6 View

How to read an HPLC report?

I have four HPLC graphs (for methyl ethyl ketone (MEK) and sulfuric acid and little organic monomers) and I want to analyze them. Is there anyone who can help me with this?

23 December 2020 6,180 3 View

Is there any GTEx like web-based tool that may predict DNA methylation associated gene expression?

I am looking for an online tool to see whether a certain methylated CpG site can affect the expression of a certain gene or not?

18 December 2020 7,575 1 View

The use of Orange, a high level tookit for Machine Learning, data mining and data science for scientific research or just teaching?

Related to data mining/data science, I recently discovered Orange (https://orange.biolab.si/) a high level very powerful free toolkit. Using it is very simple and you can test different models in...

09 December 2020 8,832 4 View

Can I use conventional PCR master mix instead of hot star Taq polymerase in DNA methylation studies or in bisulphite converted DNA ?

I am trying to predict age from DNA methylation. I am using conventional PCR master mix, but I didn't get my PCR product. Is it due to Master Mix? Should I use HotStar Taq Master Mix ?

08 December 2020 8,776 4 View