Hi, I have a problem with my mouse Adipose MSC primary culture?

I am working on mouse adipose mesanchymal stem cells. After removing the mouse peritoneal fat and extracting, I do the primary culture, I used DMEM F12 medium with 15% FBS, but with this, the...

13 February 2021 9,838 1 View

How to estimate total electron content using GPS data (with MATLAB)?

06 January 2021 1,110 2 View

How can I find the area of contour with magnitude less than specific number?

Hello everyone I have results from fluent and I want to determine area with magnitude less than specific number for example for velocity or TKE. and also how can I determine Max and min diameter...

02 November 2020 5,863 3 View

Why residuals stay at the same range in vof model in Fluent and it doesn't converge?

hi I'm modeling a 3d channel with vof , k-epsilon RNG with non-equilibrium wall functions , for bc I have velocity inlet, pressure outlet and for top of the domain I have used pressure outlet...

21 August 2020 5,926 7 View

How I can obtain the cartesian coordinates of a complex without single crystals for gaussian calculations?

When the single crystals of complex are not formed, how we can obtain cartesian coordinates for Gaussian calculations? We want to predict kind of interaction or coordination of manganese to amino...

18 August 2020 8,146 3 View

I am confused about the editor's request (I had submitted a manuscript and then major revision was requested). Can anybody help me?

I had submitted a manuscript to a journal. After a while, they requested major revisions. The end of their request, they mentioned that: "You will be unable to make your revisions on the...

09 August 2020 5,436 7 View

Is it possible to extract RNA and protein from 96-well plates?

I am doing a knockdown test in 96 well plates and then I need to extract RNA and protein from my cells. I'm not sure that the number of cells in 96 well plates is enough to these extractions....

12 June 2019 5,459 3 View

In SDS-PAGE , how possible to use freez-dry samples for loading in gel electrophoresis?

I freeze fungal mycelia of mushroom. In SDS-PAGE of total protein ,If I freeze mycelium I can used this sample? How should I prepare mycelium for electrophoresis? How should I make it for...

01 October 2018 7,971 5 View

What is the extinction coefficient of pyrogallol at 430nm for calculation of PPO(polyphenol oxidase) activity?

I performed the polyphenol oxidase activity assay from certain mycelia extracts using pyrogallol as susbtrate. I have the absorbance values but am facing the problem in determining the enzyme...

05 August 2018 172 1 View

Many thanks for all your help?

This question has been deleted.

30 March 2018 7,374 5 View

Can bacterial suspension be pipetted directly onto petri dish and agar poured onto it?

Hi, recently I encountered a protocol for plating which was not the usual method I have been practicing (pour LB agar onto plate, allow it to solidify, pipette bacterial suspension onto plate,...

28 February 2021 7,292 3 View

Why does my MTT Assay remain in purple color and does not change to yellow?

19 January 2021 5,098 4 View

Hi dear fellow researchers and senior scientists ,i need validate method for Safranin-O-fast green images intensity quantification?

Dear fellows i have images of meniscus sections stained with Safranin-O-fast green. I need to quantify the images for Safranin-O-fast green intensity and any other parameter if...

30 December 2020 1,931 3 View

How to make MRI image segmentation and create binary mask with imagej?

I have a number of MRI Dicom images. I need to create a binary mask with ROI for feature extraction. How I can do this by imagej?

25 December 2020 8,396 2 View

Is the pipetting order of the positive and negative controls in the PCR important to avoid in a possible contamination?

I have been watching bands form on my negative controls. I have already changed all reagents, optimized the hygiene of materials and the environment and increased care in pipetting.

07 December 2020 9,090 3 View

Dear all! I would like to measure the fluorescence intensity of my pictures with Image J. Could you help me how to do it?

I took my pictures with a confocal microscope. I would like to measure the whole picture fluorescence intensity and calculate the cell count. I have a nuclear staining with DAPI, actin filaments...

04 November 2020 8,799 3 View

Where can I find coordinates of specific regions of interest (ROI) in the human brain?

Hi All, I need to specify a few Regions of Interest (ROI) in the human brain providing their coordinates (x,y,z). What I am interested in at this point are anterior cingulate cortex, dorsolateral...

01 November 2020 8,442 7 View

Should I vortex during qPCR solution mixing?

To do qPCR we have to mix solution or do serial dilution. Like, 1. cDNA dilution 2. Primer dilution 3. mixing SYBR Green, cDNA and Primer in PCR tube. My question is for doing this mixing when...

25 October 2020 2,576 11 View

Why my absorbance values are in negative for antioxidant assay by dpph method ?

plant extract stock is 10 mg/mL from which I pipetted 20, 40, 60, 80, 100, 200 uL and made up to 3 mL using methanol then i added 1 ml of 0.004% dpph solution (dissolved in methanol) incubated in...

02 September 2020 1,218 2 View

How can I digest the brain tissue in healthy mice as evaluating the apoptosis using flow cytometery by annexin V/propidium iodide (PI)?

We digested the brain tissue with Trypsin ( 1x) for 15 min (all steps were performed in cold conditions) and suspend the cells by pipetting up and down (3-4 times) to the single-cell suspension....

22 August 2020 5,611 4 View