Does calculating the interaction index between a drug and a food matrix make sense?

Dear all, I'm conducting the revisions of some of my manuscript, with is the impact of the combination of Aspirin and a fruit juice in colorectal cancer cells. Two of the reviewers have asked to...

16 February 2021 3,141 3 View

Is it possible to full-couple the interFoam solver with the chtMultiRegionFoam solver?

We need to calculate multiphase stream of the one substance in the air atmosphere (this is why we using interFoam), but also we need to get heat transfer data between the substance, solid obstacle...

11 January 2021 872 2 View

Does anyone have experience with Land use/land cover data extraction from Second military survey maps?

I am trying to create polygon shapefile with land use from Second military survey using Arcmap. However, I really have hard time with reading the map, more correctly with boundaries between...

07 November 2020 6,018 3 View

How do I remove Bacillus sp. spores from Kraft Paper machine?

In the pulp and paper company that I work in, samples from paper, water and pulp from the paper machine gave information about existing spores of Presumptive Bacillus cereus. Our paper is used...

03 November 2020 1,726 10 View

What volume of a cell lysis buffer does one use for cells?

I have certain cells that are contaminant cells in a suspension of cells. I found a buffer that selectively removes them, but a lot of protocols don't specify what volume one should use for that...

03 November 2020 6,330 3 View

Best protocol to perform Western Blot from mice brain?

I am trying to look at the expression of c-fos nuclear protein in mice brain using WB technique. Can anyone suggest a protocol to extract the proteins? Better harsh homogenate before sonication?...

27 October 2020 5,272 2 View

Checking purity of sperm suspension?

I have sperm cells extracted from epididymis of a mouse. I would like to check and quantify their purity. My first idea is to use an intercalating dye like Hoechst and then see what fraction of...

25 October 2020 8,600 1 View

What do you think now of virtual teaching compared to face-to-face teaching of finished transmission of knowledge?

21 September 2020 4,178 10 View

How to store W/O droplets for over 10 days using paraffin oil with Span 80?

I am currently using a PDMS chip to produce water droplets with a diameter of 200 um in paraffin oil with 3wt%. After a couple of hours, the stationary droplets stored in the chip starts to form...

18 August 2020 2,459 3 View

How do you use factor analysis on categorical variables?

Hi, I'm trying to identify how similar different individuals are in their body traits. Normally, I would use a PCA or DFA, depending on my question. However, I have only categorical variables...

20 July 2020 4,171 1 View

How do I increase the yield of my PCR product?

Hello, We would like to increase the yield of our PCR product. We are running a series of PCR reactions that is targeting ~1.1kb sequence. We begin each reaction with ~400pg of template DNA...

02 March 2021 4,029 3 View

Does anyone know HRM channel in a 2 plex QIAGEN Rotor- Gene Q qPCR can be used as a separate channel?

I am going to have 3 different probes in my qPCR work that I am going to do. But I realized that the machine we have in the lab is a Rotor-Gene Q 2plex HRM Platform, saying it has green, yellow,...

01 March 2021 8,544 1 View

How to address this issue in the analysis of Real-Time PCR results?

To dear Researchers, I was analyzing a series of concentration for estimation of Real-Time PCR efficiency. The concentration was 1:10. I used MS-excel to evaluate Slope. The result of slope was -8...

01 March 2021 8,683 4 View

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Does anyone have the experience of using Taq Man probes in the QIAGEN Rotar- Gene qPCR machine?

01 March 2021 5,311 1 View

MiRNA qpcr problem?

Dear All, mirna primer showing some problem in the melting curve? any idea why? As attached is the melting curve. The forward sequence is obtained from miRBase and reverse primer is universal.

28 February 2021 5,008 4 View

Runs of nucleotides in Sanger sequencing?

I performed site directed mutagenesis, transformation, and then I sent out plasmids for Sanger sequencing and found out that there is extension of DNA just before the stop codon. I am not sure...

27 February 2021 547 3 View

Can thermal cycler machines be problematic during PCR?

Hi, my question is about the heating of thermal cycler machines and I hope some of you had experienced a similar thing previously. There are two thermal cycler machines in the lab(BioRad) and for...

26 February 2021 4,777 4 View

Calculating volume of DNA required from DNA concentration?

Hi I am a bit confused. They are asking me to find out the volume of DNA required in ul (a total of 30-100 ng for genomic DNA) from the DNA concentration in the nanodrop reading which was 404.8...

26 February 2021 5,029 2 View

Has anyone used the Illumina ITS1 primer sets?

Hi everyone, Illumina provides a list of primers to amplify with high taxonomic coverage the ITS1 region for further fungal sequencing, but I cannot find the exact amount necessary of each...

25 February 2021 6,969 3 View

Why do the PCR bands from the cDNA templates (extraction from the cell after transfection) show different size from the band of the plasmid template?

After transfection with the plasmid ( linearized ) and subcloning of the cell lines, RNA was extracted from the cell and then reverse transcripted to cDNA. When PCR reactions were run to verify...

25 February 2021 5,712 3 View