How much the nanoparticles reach the inflammatory tissue?

Dear colleagues, I want to know the average analysis data of EPR effect on inflammatory tissue (acute lung inflammation/injury, ischemia/reperfusion, rheumatoid arthritis, and sepsis..) In...

22 December 2020 3,147 2 View

How to measure the bonding strength of transfered graphene on PDMS substrate?

Chemical vapor deposition (CVD) was used to grow graphene on copper (Cu ) substrate, then the single layer graphene was transfered onto a PDMS substrate. I want to measure the bonding strength of...

17 October 2020 3,567 3 View

How to define the particle agglomeration in composite materials or foundry alloys and measure its size distribution quantitatively?

28 June 2020 7,614 3 View

What form of Mg will be selected during the purification of prokaryotic expression protein?

Hello everyone Recently I wanted to purify several proteins by prokaryotic expression, I read some related literature and found that Mg is needed in the protein purification buffer. I am a little...

02 May 2020 931 3 View

Free acid and its salt, can HPLC-PDA-MS tell its difference?

I have a free acid R-COOH and its salt R-COOM. Both are insoluble in water but soluble in methanol. When their methanol solutions are injected into a HPLC-PDA-MS system, are they going to have the...

06 March 2020 4,952 4 View

Sodium chloride solution saturated vapor pressure at sub zero temperature?

Can anyone suggest where to find the data or any equations related to the salt solution vapor pressure at sub-zero temperature? Many thanks!

24 December 2019 7,741 2 View

[Systematic Reviews] What to do if publication bias exist?

When doing the systematic reviews, if you I confirmed a publication bias during meta-analysis, my questions is what to do next? I though to add discussion about the publication bias, but I want...

17 November 2019 5,634 4 View

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26 October 2019 7,914 3 View

How does acridine orange works to recognize apoptosis, autophagy or lysosomal stability?

I used acridine orange staining to detect autophagy. First, the cells were grown in RPMI 10%FBS in confocal dishes, treated with compound with or without with wortmannin (0.5uM). Wortmannin was...

08 August 2019 9,319 5 View

If two shRNA linked together, it works or not?

03 August 2019 299 3 View

Does anyone have a recommendation for yeast reporter gene plasmid/protocol?

Hi, could anyone recommend a plasmid and/or protocol for reporter gene assay in S. cerevisiae? I want to assess the effect of growth conditions on a transcription factor, so I want to clone it`s...

01 March 2021 210 1 View

Why might my GFP tag be dissociating from my plasmid after transfection?

I have a set of stably transfected cell lines all transfected with plasmids containing GFP tags on the C terminus. During a western blot using anti-GFP antibody, one of my plasmids has dissociated...

01 March 2021 9,310 4 View

Expression cloning by using cDNA,do I need to modify the cDNA first?

I am going to have a expression cloning of mammalian gene by using shuttle plasmid to transforming the E.coli However I don't know I should only inserting the Coding sequence ,or I can...

28 February 2021 5,440 3 View

Problem with shRNA transfection. Why are only two plates getting contaminated instead of all?

I transfected my LNCaP-WT cells with 3 shRNA plus their NTC two weeks ago and split two puromycin selected cell plates on Friday last week(Feb 26). I checked for GFP in the cells, and they all...

28 February 2021 4,949 3 View

PUC19 as a transfer plasmid for lentiviral delivery?

Hello, Is it possible to use pUC19 as a transfer vector to be packed in using the second generation viral particles packaging system( pMD2.G; psPAX2 plasmids)? As far as I understand it there is...

28 February 2021 4,868 2 View

Did anyone ever try using pLVX-TetOne Plasmid with a copGFP as a selection marker instead of Puromycin?

When using a lentiviral vector for inducible expression of genes using the Tet-On system. In the literature, I saw a widely used of pLVX-TetOne-Puro Plasmid, is there a reason why people prefer to...

25 February 2021 1,011 3 View

Why do the PCR bands from the cDNA templates (extraction from the cell after transfection) show different size from the band of the plasmid template?

After transfection with the plasmid ( linearized ) and subcloning of the cell lines, RNA was extracted from the cell and then reverse transcripted to cDNA. When PCR reactions were run to verify...

25 February 2021 5,712 3 View

How do I transfect a large plasmid into PC12 cells with nerve growth factor (NGF) receptor?

I have a large 16 kb plasmid, which I need to transfect into PC12 cells. Lipofectamin 2000 didn't work and with GFP alone the transfection rate is very low. I also tried the neon invitrogen...

25 February 2021 6,635 5 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

Best plasmid could be used as a standard curve for AAV titration?

I have been trying to have a good AAV titration for my production and I have tried different plasmids to set up as a standard curve but each one behaves differently. i am trying to use ITR for...

23 February 2021 5,167 3 View