Is it harmful to breed for Cre Homozygosity initially?

Hello, I am currently using a Cas9 knock in system that will be expressed in the liver. To do so STOP codon fl/fl Cas9 KI mice were bred with Albumin-Cre mice to generate heterozgous pups, that...

24 February 2021 5,759 3 View

Does anyone has a protocol for transfecting AML12 cells?

I am optimizing a CRISPR/CAS9 system in vitro before using it in vivo. I would like to transfect AML12 cells with my pAAV-sgRNA-vector to validate editing efficiency before generating virus.

26 January 2021 8,733 2 View

How can I make interpretation of kendall's Tau-b correlation magnitude?

Hi. do somebody know if Kendall's tau-B value of 0,06 or 0,11, 0,14, 0,20 is a fair or weak association? or how to make interpretation? Thing is, we are writing a descriptive study, the sample...

14 January 2020 6,514 7 View

How do I design primers specific to transfected plasmid and not genomic DNA?

I recently introduced a Lenti-Puro Guide vector containing a specific sgRNA sequence into a cell line. I would like to sequence the ddCas9-sgRNA cell lines to confirm that each sgRNA is accurate.

04 February 2019 6,681 3 View

Where do I order amplicons/plasmids from specific primers to make standard curves for QPCR?

I trying to quantify total fungal populations in water and biofilm using QPCR. I read that you make the standard curves using plasmids that contain the specific amplicon. I was wondering if there...

21 January 2019 980 3 View

Is there an effect on the isotopic signatures of zooplankton, if there is salt on some of the dried samples?

16 January 2019 3,850 1 View

Does anyone has protocol for p53 IHC in frozen sections?

I need to detect p53 in murine E15.5 embryos that overexpress this protein. The embryos were collected and fixed overnight in 10% Neutral Buffered Formalin. Then, I cryopreserved these embryos in...

23 May 2018 2,592 2 View

Is there any report of fungi or endophytic bacteria causing diseases in algae or macroalgae meadows or marine ecology?

How can one identify the affectations in algae produced by parasites? How can we identify the effects on algae caused by fungi?

15 February 2018 9,871 2 View

Phosphate Buffer solution recipe?

Can anybody provide me a scientific reference on how to prepare PBS solution? Thanks!

11 December 2017 8,460 1 View

How to optimize solubility of my heterologous protein overexpressed at 0.04mM of IPTG and 26C incubation ?

Good morning/afternoon I am over-expressing a bacterial protein (dimer) in BL21 E. coli, which it works even with 0.04mM of IPTG, incubated at 26C. However, when I want to check the solubility of...

20 August 2017 2,306 5 View

What kind of fluid could I use for a pitfall trap that also does not invalidate molecular testing?

Hi, I want to start testing pitfall trap to obtain ants samples, but I need to conduct molecular analysis on those insects. So, what kind of fluid can I use? Ethanol expires too early and I need...

03 March 2021 5,978 5 View

Does Napabucasin soluble in dichloromethane and in ethanol?

I need to prepare a solution of Napabucasin (inhibitor of cancer cell stemness) in dichloromethane. The drug is expensive, so maybe somebody already tried to do it. If it is soluble, what is the...

02 March 2021 9,945 3 View

Why am i not getting solid after reacting APTES with salicylaldehyde?

The reaction of APTES with salicylaldehyde in ethanol leads to the formation of imine compound yellow solid which is mention in literature, but I am not getting yellow solid I don't know why? when...

28 February 2021 2,955 2 View

How to best wash a 96-well plate containing microplastic?

I am planning my protocol for my dissertation for an experiment quantifying bacterial (E. coli) biofilm formation on micro-plastic (5mm discs of polyethylene bags) by conducting a crystal violet...

23 February 2021 7,868 2 View

Are there any known solvothermal methods to synthesize MoS2 nanosheets using solvents other than water (like ethanol/ethanol-water mixture) ?

I need to synthesize MoS2 nanosheets by alternate methods without pure water as a solvent.

22 February 2021 9,246 1 View

What is the best etching method for Mg-Ca alloy?

I have used Picral etchant (4.2 g Picric acid, 10 mL Acetic acid, 70 mL Ethanol, 10 mL distilled water) but it didn't work. Is there any alternative?

21 February 2021 2,558 5 View

Can ethanol be used as an analgesic?

If ethanol has analgesic properties, why isn't it used for clinical purposes?

18 February 2021 8,227 4 View

What is the best way to isolate Hydrolysable tannins on Sephadex column?

I am currently preparing to isolate polyphenolics (Hydrolysable tannins) from aqueous extract of a plant. I want to set up a small sephadex column to guide the major isolation on a laerge...

18 February 2021 1,455 3 View

Can any suggest me good method of GC MS for the separation of Flavonoids?

I prepared the ethyl acetate, ethanol and butanol fraction from the ethanol extract of seed for isolation of Flavonoids. Amongst them ethanol fraction showing shinoda test positive for polar...

13 February 2021 8,263 3 View

In Method prepreation, what is the meaning of (Fixed at), and the meaning of (mol% of somthing) and how to find the volume?

I need an explanation of this sentence: Firstly, SnCl4.5H2O with fixed at 0, 1, 3, and 5 mol% of TiO2 and Titanium (IV) isoproxide (TTIP) with fixed at 10 ml were mixed into 150 ml of ethanol...

10 February 2021 3,291 2 View