Which type of base is generally used in Heck Coupling and why?

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Does anyone know, can i do cryosectioning of whole aorta after oil red O staining and use the cryosection parts for further analysis?

I would like to quantify the lesions on aorta. I want to take image of atherosclerotic plaques formation in aorta by using O red Oil Solution. After the staining, what will be the storage...

16 February 2021 5,876 2 View

What is the best concentration of Pam3CSK4 to coat a dish to activate with THP-1?

Hi everyone I am trying to coat a glass-bottom dish with Pam3CSK4 and plate THP-1 cells to measure IL6 with ELISA from the supernatant. I wondered if anyone knows a good concentration and...

21 January 2021 2,593 1 View

Why I see Lamp-1 GFP in cytocol after transfection?

Hi every one I transfected Lamp-1 GFP plasmid to the HEK293 cell line. When I image the cells in TIRF, I see green fluorescence o the cytosol too. Does anyone have any idea that how it can...

21 December 2020 9,978 3 View

Why HEK293 transfected with LAMP-1GFP do not load dextran?

Hi every one I have made a cell line of HEK293 transfected LAPM-1GFP and after seeding the cells for 24h, I try to load dextran on the dish but after imaging, the cells with GFP+ have loaded less...

14 December 2020 1,801 2 View

What are the tools or software which can simulate climate change for a city and conclude future climate data?

I am working in research on climate adaptation so need to compare the performance of the urban fabric to the climate changes, which requires me to make a comparison and simulation of the...

03 December 2020 988 8 View

Correlation, Regression and significance?

Dears, I have different variables in multiple regression. Two variables are highly correlated. To solve the collinearity issue, I dropped one of them from the multiple regression model. The...

29 November 2020 2,695 4 View

Do anyone have any authentic material regarding Cultural Ethics and especially regarding Pakistani culture?

I need this because I have to represent it in a conference as a keynote speaker

17 November 2020 584 4 View

How can I synthesis heparin nano particle?

I want to synthesize iron nanoparticles with heparin, but I have trouble synthesizing First of all, do I have to use a freezer drying for drying of product and it is not impossible use from...

16 November 2020 9,455 2 View

How to differentiate between relationship and effect using statistical terms?

It is easy to understand the meaning of relationship and effect (impact) in general. But when it comes to the statistical analysis it is a difficult conundrum, as one can determine the...

24 July 2020 6,525 7 View

Which is the best solvent for herbal extraction?

We are aware of the fact that some type of solvent is required for isolating a compound from herbs. I personally believe that water is the best solvent since mostly decoction is prepared using...

22 July 2020 4,179 2 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

PACYC PCR not working after several attempts. Would anyone have any suggestions?

So, I have been trying to run a pACYC PCR which will be used later on for a Gibson Assembly. However the PCR is not working. I have already tried gradient PCR and changing extension time; however...

02 March 2021 1,146 2 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

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

Could not amplify CD28 and CD3z ectodomain from cDNA of Jurkat Cells ?

For my experiments, I have to express ectodomains of human CD28 and CD3z. As a source, I extracted RNA from Jurkat cells and verified the quality of RNA on the gel. I, then, prepared cDNA using...

23 February 2021 7,051 4 View

Why does the sum of reaction forces not match the force component of a Free Body Cut in Abaqus?

I am using Abaqus to simulate a plate with in-plane loading. The boundary conditions allow the right edge to move up and down, the displacements on the left edge are fixed. There is no rotation...

23 February 2021 711 3 View

What effect does the large temperature difference between the two primers have on PCR, including real time PCR?

What effect does the large temperature difference between the two primers have on PCR, including real time PCR? If I did not get a result from real time PCR, is it possible that my problems are...

21 February 2021 4,094 7 View

Why is my qPCR suddently not working?

I've been working with qPCR for some months now. I amplify 2 genes (PSEN2 and HN1), and the protocols are optimized for both and have been working fine. The other day I amplified HN1 for some...

21 February 2021 3,437 3 View