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

Is there any low-cost filtering system (or other tech.)to lower the salt conc. (salinity) of surface/groundwater for large scale agricultural system??

The available water (surface and groundwater) is highly saline (6-20 dS/m). It is required to produce crop (moderately saline tolerant, up to 6 dS/m). Is there any low-cost filtering system (or...

18 January 2021 5,015 3 View

Can I use breaking series as a regressor in a VAR model?

Context: I have two series, price and sales. Sales is mean-reverting stationery but price is stationary only after controlling for an intercept break. I want to set up a 2-equation VAR model...

14 January 2021 6,824 12 View

What will be the life of siRNA (liquid form) at -20 degree, if kept unopened?

Hi all, I just want to know that, if we keep the siRNA in a -20 degree freezer (as mentioned in the product detail), what will be the average life of the siRNA? Can we store for more than one...

10 January 2021 6,346 6 View

Can we compare regression results (models) for different groups?

Dear Research Gate Members, I have a query regarding comparing the two groups on the basis of the regression models For Instance: I have two sector companies i.e. Public Sector and Private...

09 January 2021 9,645 8 View

How can I detect IL-1B by Western blot?

Hello Everyone, I know IL-1B is a soluble protein. So how to extract it from the supernatant? Please advice. Thanks!

05 January 2021 7,349 5 View

Can I add or delete studies from systematic review during revision stage of paper publication?

I have conducted a systematic review and one of the reviewers had mentioned about missing out on some good studies from the sample. on the surface the study is on a different topic but after an...

21 December 2020 573 4 View

Does the use of Tissue Level implants reduce the risk of Peri-implantitis, as opposed to using bone level?

12 December 2020 6,007 6 View

Will the plasmid without SV40 Ori have a quite low expression level in 293T?

SV40 Ori helps plasmid to replicate in 293T cells. If I use a plasmid which doesn't have a SV40 Ori, will the expression level be very low?

10 December 2020 1,751 2 View

Is it possible to grow human breast cancer cell lines in immune competent mice?

Hello everyone, I am working in breast cancer and wanted to do in vivo studies in breast cancer mice models. Here we do not have the facility to maintain immune-deficient mice, and I have MCF-7,...

27 November 2020 1,638 3 View

What is the effect of room temperature on brain tissue intended for single nuclei RNA sequencing?

I am planning to do single-nuclei sequencing for brain organoids. However, the organoids experienced 25 minutes in room temperature prior to freezing. Most of the time they were in their culture...

17 January 2021 5,257 1 View

Why are the organoid cells showing blue fluorescence even without dapi stain?

Mouse intestinal organoids ; After fixation and storage in PBS-T, when I checked in microscope, the organoid show fluorescent color blue even if I have not added DAPI. Does anyone have such...

05 January 2021 2,067 3 View

How do you fix organoids for IHC staining and H&E sections??

I work with ovarian cancer cell line organoids embedded in matrigel, they grow well the A2780 cells, but once I start using 10% formaldehyde to fix them they disintegrate...does anybody have a...

29 November 2020 1,900 1 View

Pancreatic pathology learning?

Dear all, I am wondering to where I can have access to some free learning materials of pancreatic pathology, especially pancreatic pathology microscope images?

24 November 2020 1,984 2 View

What is the best way to get organoids of the same size?

I would like to get organoids of the same size. We filter organoids using a 100 um filter and then pass that filtrate through a 40 um filter followed by flipping the 40 um filter. Then we wash the...

22 November 2020 9,391 3 View

Is this yeast contamination and how do I get rid of it?

I received this gastric tumor biopsis and processed using standard protocol to establish gastric cancer organoids. Contamination looks like this. I have never seen this before and the culture...

08 November 2020 8,541 4 View

How to successfully produce agarose microwells with PDMS stamp?

05 October 2020 3,696 3 View

Insight on Unusual Organoids and Contamination?

In the past few weeks I've run into some familiar and unfamiliar problems with my mouse small intestine organoids grown in IntestiCult media. I've attached photos and I'm wondering if anyone has...

11 August 2020 5,838 3 View

Is it possible to create an organoid containing stroma?

Hi, I work on mouse oviduct organoids and would like to study the stromal cells. Is it possible to create an organoid containing stroma? So far I have created organoids from mouse oviduct tissue...

04 August 2020 9,236 1 View

Can anyone suggest what are these large bubble like structure along with small organoids and how to get rid of them?see the attached image.?

I am growing 3D organoids from mouse lung AT2 cells in matrigel. I am using glutamine, Penstrep. 10% FBS, ITS and tGF b inhibitor in media.after 6 days I observe large bubble like structure in the...

02 January 2020 1,352 5 View