Which is the most efficient method of transfection of Min6 cell lines with circular plasmid? Calcium phosphate/lipofectamine/electroporation or other?

More Rashmi Shrivastava's questions See All

The transfected cells are showing very weak mcherry fluorescence. How to detect mcherry expression?

The animal cells are transfected with a vector having mcherry reporter gene. The transfected cells show very weak fluorescence. How to get a good quality fluorescener image showing mcherry...

07 August 2018 7,663 3 View

Why could be there a redshift of emission peak of a dried fluorescent dye as compared to the solution?

A fluorescent dye has emission peak at 575 in aquous solution but is shifted to 615 upon drying. what could be possible reasons?

04 May 2018 6,686 1 View

Which cloning cylinders are best for isolating cell colonies? Glass or pyrex?

For isolating cell colonies cloning cylinders made of glass or pyrex are most easy to handle and preferred?

31 December 2017 5,074 6 View

How to preserve stably transfected animal cell lines?

Can stably transfected cell lines be cryo preserved using general preservation protocol?

31 December 2017 6,705 5 View

Which laser suitable for activation of ChR2 protein in mammalian cells?

Which laser is most suitable for optogenetic activation of ChR2 in non-neuronal mammalian cells. What power range is required?

31 December 2016 8,772 4 View

Sources for Optogenetic ChR2 mammalian expression vectors?

I am interested to get ChR2 mammalian expression vectors. Please tell what are the sources I can get hese from. One I know is Addgene. Kindly inform if there are any other too...

11 December 2016 1,253 1 View

How can cell lines be ordered from SIGMA?

I want some cell lines from SIGMA, but their online lists just shows about the DNA , cDNA or RNA of the respective cell line. How can I order the cells in culture?

10 November 2016 6,044 2 View

What precautions and safety guidelines to be followed for staining samples with Uranyl acetate for TEM?

What precautins to be taken and how to discard the material stained with uranyl acetate safely?

10 November 2016 9,775 7 View

Can optogenetic vectors be shuttled between bacteria and mammalian cells ?

Optogenetic vectors are expression vectors for mammalian cells. But to preseve and store them or multiply, can these be transferred to bacterial strains?

09 October 2016 3,408 1 View

Please provide a reference for thermal conductivity of polystyrene sulfonate?

I need to know the thermal conductivity of polystyrene sulfonate.

03 April 2016 4,700 1 View

Why Do TDS and EC Increase with Larger Wastewater Volumes, While BOD and COD Decrease?

I have carried out MFC experiments on three different volumes, 50, 500 and 1000 mL of wastewater. Results after MFC treatment shows that TDS and EC are more in larger volumes of water i.e. TDS and...

09 August 2024 9,621 0 View

Could it be a cell culture contamination?

Hello everyone! I observed in my culture (htert-RPE1 cells) an orange- red particle at the bottom of the dish. It is visible to the naked eye as a very very small red dot. Could it be a...

09 August 2024 2,824 3 View

Is there any way to quantify bacterial and fungal cells in their mixed culture?

I am working in fungal fermentation of soybean meal and there is bacterial growth in them at times. I am trying to quantify fungal cell counts and bacterial cells; but I haven't been able to do at...

07 August 2024 7,535 4 View

How can we differentiate between calcite, dolomite, siderite, magnesite and ankerite minerals in carbonatite rocks in thin section under op microscop?

How can we differentiate between calcite, dolomite, siderite, magnesite and ankerite minerals in carbonatite rocks in thin section under optical microscope?

07 August 2024 2,132 3 View

How to normalize and take the significance of the MTT OD values with 3 replicates for the same cell-line?

Hi, I have a question about normalizing the MTT OD values for doing the statistical analysis. So, if we have 3 different plates and we call them 3 different replicates, so, first we would...

07 August 2024 8,106 4 View

Why activated CAR-Jurkat cell could not kill targets?

Previously when I co-coluture anti-CD19(FMC63) CAR-Jurkat with Raji with E:T=5:1, Jurkat can eliminate Raji in 24h. However, when I test another CAR construct, although I can dectect totally CD69...

06 August 2024 641 2 View

How to isolate lymphocytes from mouse spleen?

I have tried several times to isolate lymphocytes from mouse spleen, but all attempts have been unsuccessful. I tried most available protocols. I used different dissociation media (HBSS with Ca...

04 August 2024 9,913 7 View

How to Add Missing Water Molecules in Protein-Membrane Simulations?

I have protein-membrane simulations (PDB, PSF, DCD) and have noticed that water molecules near the protein are not visible in the simulations. How can I fix this issue? Is there a way to place the...

04 August 2024 1,200 2 View

XRD Analysis is showing only Calcium carbonate. It is not showing other compounds. Can anyone help me get the other compounds?

XRD Analysis is showing only Calcium carbonate. It is not showing other compounds. Can anyone help me get the other compounds

04 August 2024 3,019 3 View

Does long-term culture of murine Monocytes result in macrophage differentiation?

Hi, I am isolating monocytes from the bone marrow using the Mouse Monocyte EasySep kit. I want to treat these cells and monitor expression of specific markers over the course of 10 days. I will...

04 August 2024 7,282 2 View

Han Zhang

Generally speaking, calcium phosphate and lipofectamine are always used for attached cells, while electroporation is used for suspended cells. Compared to the first two methods, electroporation is less efficient and always causes cell damage.

Rashmi Shrivastava

Thanks Han for the suggestion