Can anyone recommend a method for ethylene gas detection in an air sample?

I am looking for a method to detect ethylene gas concentration in a green house. I have tried SPME , Head space and GC-MS analysis but results were not satisfied. So is it better to detect...

10 January 2019 7,832 3 View

Contamination in A549 cell culture?

I am culturing A549 cells, I have noticed there are white color particle like things floating on the media. it was visible to the naked eye also. there was no color change in the media or there...

22 February 2018 8,404 5 View

Why there were many floating cell, when THP-1 cells treated with PMA ?

I have done THP-1 cell differentiation into macrophages. I used RPMI as a media. and PMA 30nM concentration. after 24 hours incubation there were many floating cells. what could be the reason? and...

22 January 2018 3,473 3 View

Could anyone explain me the difference between non-verbal mental age and verbal mental age please?

14 March 2017 8,969 6 View

Issues with Permeabilization during Flow Cytometry?

Hello Everyone. Currently I am working to characterize macrophages in the myocardium after ischemia-reperfusion injury in rats. Due to the low total cell number isolated from rat hearts I can...

01 March 2021 3,867 3 View

What is the most suitable server for predicting protein structures in bacteria?

I have used the i-Tasser several times, however it has been unavailable for several days. I tried the swiss-model, but the output was not very pleasant due to the model used. Is there any other...

28 February 2021 4,521 3 View

Why is the efficiency of viral mRNA electroporation in PBMC low?

Hello, I have been struggling with the electroporation of PBMC with HIV-I mRNA. Although the quality of the RNA generated is good, and the handling of the cells in meticulous, the frequency of...

27 February 2021 9,233 3 View

Troubleshooting with immunofluoresence/confocal microscope? What went wrong?

Hi guys, I have no experience and little knowledge on immunofluorescence and confocal microscopy. I tried to visualize the expression of FXR in my cells (THP-1 macrophages), yet I did not...

11 February 2021 562 6 View

Cells not growing in large scale protein expression?

I am using KRX cell. I have grown my overnight cultures at 37 degrees. When I inoculate 1L TB media, my cells do not grow. I have also tried using 25 degree incubation of overnight cultures and...

10 February 2021 3,871 3 View

Macrophages in culture not growing/ dying or detaching . Why ?

Hello, I am an undergraduate student doing my dissertation, where I isolate PBMCs from leucocyte cones in order to plate monocytes and allow for macrophage differentiation. Although the numbers...

09 February 2021 5,334 8 View

Rat Macrophage Markers for Flow Cytometry?

Hello, I'm trying to identify good putative macrophage markers for flow cytometry in rats.

04 February 2021 3,913 4 View

Can anyone help me with doing resorption pit assay on biomaterials for 28 days?

I culture RAW 264.7 cells on my samples and differentiate them to osteoclasts with RANKL. I want to do resorption pit assay by culturing cells for 28 days. My problem is that the macrophages keep...

01 February 2021 6,746 2 View

What M1 and M2 markers can I use for flow cytometry ?

Hi, I'm a student and I'm doing an internship. I need to asses the M1 and M2 populations of a culture using flow cytometry. From my researches, I know that this is subject to some controversy, as...

26 January 2021 299 3 View

What are the validation parameters for RAW BLUE macrophages 264.7?

Currently, I am working with RAW BLUE cell lines to check the SEAP expression on addition of TLR ligands? Method developed for different TLR ligands. How experiments can design for validations?...

24 January 2021 589 2 View