In CHURCH buffer, what components do role at southern blot?

Greetings. I cannot find about each component's role of CHURCH buffer at southern blotting(detail, pre-hybridization). I did DNA microarray but never have ever southern blot. In microarray,...

31 December 2018 885 0 View

In alkaline transfer buffer, why put NaCl to alkaline transfer buffer?

Greetings. Before question, I never did southern/nothern blot. (eastern too) During search buffer, I found Alkaline transfer buffer and knew it uses southern blot(alkaline method). This buffer...

31 December 2018 8,961 0 View

In SDS-PAGE, how Tris-glycine buffer without SDS works?

Greetings. Here is sunday... In tris-glycine buffer, there are either include 1% SDS or not. I used former but many seller selling both Tris-glycine with SDS and without SDS. SDS is set charge...

31 December 2018 1,224 0 View

Why we don't have to use HCL/NaOH during make Trice-glycine buffer?

Greetings. I heard about when make buffer include Tris, set pH using concentrated hydrochloric acid(37%). but SDS-PAGE, loading buffer(10X), Tris-glycine, what I heard set pH for 8.3, use only...

31 December 2018 3,971 3 View

What is 5X binding buffer?

I saw 5X bingind buffer maded by; 100mM HEPES, pH 7.6 5mM EDTA 50mM ammonium sulfate 5mM DTT 1% Tween-20 150mM potassium chloride which reaction helps this buffer? I don't consider to this...

31 December 2018 4,938 0 View

How can I measure tissues for RNA preparation without RNA dergadation?

Greetings. I extracted RNA at mouse liver and human blood, but degradation occurs. I think, at mouse liver, too hard to measuring 50mg liver(I am newbie for animal tissue preparation) so spend...

31 December 2018 4,671 0 View

What's the problem in gel electriphoresis?

Greetings. In image... left:ladder(start with 750bp) middle: PCR product with exonuclease III treated right(3rd lane): PCR product without exonuclease III treated there's a problem. PCR...

10 November 2017 9,858 12 View

Among the features of microparticles, what should be compared experimentally?

Greetings. Experiments using microparticles are in progress. There are particles with multiple compositions and features, advisors want to compare the features of this particle finely, but I can...

08 September 2017 535 0 View

What is Dunn's multiple comparison test?

Guten morgen.(means 'Good mornong' in Deutsch) Recently I read a paper entitled "Circulating Tumor DNA Mutation Profiling by Targeted Next Generation Sequencing Provides Guidance for Personalized...

08 September 2017 5,063 1 View

How can I add sodium chloride in 1X PBS to 450mM?

Oh, greetings. I plan to experiment for 'stringency of DNA'. so I add some sodium chlodire to PBS. and make 1X PBS(450mM NaCl). It same to concentration of NaCl in 3X SSC. But in 1X PBS, I buy...

08 September 2017 8,717 0 View

Buffer to disrupt platelet alpha granules for PF4 quantification?

Hello! I want to quantify by ELISA the secreted (from platelets poor plasma) and the non-secreted (from platelet lysate) PF4 before and after TRAP stimulation. I will use the ELISA from R&D...

03 March 2021 1,499 2 View

Gel electrophoresis result for total RNA samples, 1.5 Agarose gel was used, How to improve the integrity of RNA?

Gel electrophoresis, RNA degradation, RNA extraction from fresh tissue

02 March 2021 5,433 5 View

Is anyone familiar with the cyclic compressive fatigue testing (BS EN 12697 - 25) ?

I would like to get more information on the cyclic compressive fatigue testing (BS EN 12697 - 25) which is typically done for bituminous material in pavement design. Any one can advise on the...

28 February 2021 2,004 3 View

Dapi fluorescence protocol for colon cell lines ?

28 February 2021 2,534 2 View

How can I represent SDS-PAGE results for machine learning analysis?

I am trying to classify and analyze the results of an SDS-PAGE based array for bacterial detection using machine learning, but I have trouble finding the best way to represent the results with...

27 February 2021 9,176 3 View

Why my agarose gel staining sometimes looks not homogenic but like gradient (see the figure)?

I am worried about this overexposure of the upper part of the gel in the picture. Is it possible that this is the result of too much concentration of ethidium bromide? Why is there such a big...

25 February 2021 8,140 3 View

EMSA troubleshooting. Protein-DNA complex not migrating, cold probe lane with multiple bands. Can anyone help?

I'm running an EMSA to show the DNA binding activity of recombinant proteins versus the Wild type. Previous assays run by my research group using a different test system show the protein-DNA...

24 February 2021 8,325 1 View

Problem with ligating 2.8 kb insert into 8.5 kb plasmid?

I am trying to clone 2 copies of the same mammalian gene into the pSF-CMV-Ub-Puro Ascl (contains HindIII, KpnI and NheI cut sites) plasmid. This is what the final product is supposed to look like...

24 February 2021 6,310 3 View

Standard curve shifting over time. How do I stabilise the ELISA?

24 February 2021 1,365 3 View

Can we recognize signs of the "volatility clustering" property of a time series in its time domain plot?

My purpose is to recognize the volatility clustering property without statistical tests such as The Lagrange Multiplier (LM) test.

24 February 2021 4,150 3 View