In MTT assay after formation of formazon crystals.Should we remove the media before adding DMSO ?

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How to determine tannin content in fodder pellets?

22 July 2024 8,163 3 View

Less substrate signals towards the last lanes of the Native PAGE?

I have been running native page for FAM DNA substrate ( fluorescence samples) for protein DNA binding reaction. Binding is there but towards the end of the lane , I am loosing signals...

17 July 2024 6,213 4 View

Want to authenticate aquatic plant species Duckweed? Two University botanist are unable to confirm, any confirmed place where it can be done in India?

06 June 2024 5,845 0 View

How do we quantify the flow behavior in a drying drop?

Is it possible to quantify the flow without adding any polymeric beads? I'm interested to know whether there's dominant capillary or Marangoni flow. Aby suggestions would really be helpful.

05 May 2024 2,233 5 View

Today I found a very strange thing in my research gate account..it showing Citations -0..However, I saw more than 150 Citations last week. How to fix?

Today I found a very strange thing in my research gate account..it showing Citations -0..However, I saw more than 150 Citations last week..Dose anyone know how to fix it ??

19 April 2024 1,111 2 View

Alphascreen versus TR-FRET?

I want to quantify low cAMP levels generated of a constitutively active GPCR also by different mutants of this receptor. I have tried the cAMP ELISA kit from Cayman chemicals with very...

14 April 2024 7,319 0 View

Has AI taking a big leap in Science and Engineering?

AI is coming fast, and we have to adapt.

29 March 2024 2,315 1 View

Bone material: What this minimum of maximum strain of Human cortical Bone before fracture?

What this minimum of maximum strain of Human cortical Bone before fracture. I saw lot of papers showing different values.

27 March 2024 4,255 1 View

Does the presence of degenerate nucleotides in consensus sequences affect the results of population genetic analysis?

I want to run STRUCTURE on a nuclear gene of an insect species. The sequences that I have received are showing the presence of degenerate nucleotides in the consensus sequences. Do I need to edit...

29 February 2024 648 1 View

Why binding energy in XPS shifted to lower side (decrease in the value) in composite with respect to base material?

In composite material, two elements of the base material show a positive shift in the binding energy, while the third element shows a negative shift in the binding energy. What are the reasons for...

11 February 2024 367 2 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

What Are the Best Alternatives to the MTT Assay for Assessing Cell Toxicity of Colored Herbal Extracts?

I am currently investigating the cytotoxicity of a series of herbal extracts, and like many studies, I have been using the MTT assay to evaluate cell viability. However, I am encountering a...

31 July 2024 193 4 View

Assistance with MTT Assay Data ?

I did an MTT assay with 2 drugs (Piroxicam and Sulfameter) when I got my results for the 12,24,48,72 hours of incubation with my drug at the following concentrations [ug/ml]...

26 July 2024 7,511 3 View

Can I use sonicator only to lyse the exosomes and measure their protein contents using BCA assay kit?

Hello, I want to ask regarding exosome protein quantification method. Is it necessary to lyse exosomes before measuring their protein contents using BCA assay kit? Or can I just straight away...

23 July 2024 4,603 4 View

How do we pick data for determination of Validation Acceptance Criteria?

Hello, colleagues! There is commenting open for new upcoming edition of USP 1033. Validation target acceptance criteria is now different from what it used to be and it doesn't include Cpm....

23 July 2024 7,292 3 View

My question concerns MTT cell viability assay?

Despite not having cells in the media, I am getting purple color. I have tried many troubleshooting methods, varying media types, and even different MTTs from different companies to figure out the...

21 July 2024 9,914 1 View

Cell proliferation assays suggestions?

What cell proliferation assay do you suggest? cyQUANT from thermo Fischer has good reviews, a lot of good articles for the kit from Abcam. and Promega kits look easy and straight forward.

21 July 2024 1,554 2 View

Why my plant protein cannot resolubilize after TCA/Acetone extraction?

I am extracting proteins from plant samples and am currently attempting to use the TCA/Acetone extraction method. I am having trouble resolubilizing my sample after drying the pellet. I collected...

15 July 2024 9,025 3 View