Chlorinated organic formation in odor control scrubbers using hypochlorite?

I'm involved in a study of odor control technologies for municipal wastewater treatment plant. One of the control options involves a chemical 2-stage (acid/alkaline) packed bed scrubber. The...

03 March 2021 3,661 2 View

Why are my bands weird in this Agarose gel?

Can someone please give me some possible things that could go wrong? Here is my recipe: 0.5g Agarose 50 mL of TAE 1x 1 uL ethyl bromide. Gel was run at 100V for 1 hour. The buffer used is also TAE.

01 March 2021 9,952 3 View

Which fluorescent dye to use for measuring total ROS production?

Is DCFDA appropriate for measuring total ROS production, or can it only detect certain types of ROS? If I want to measure total ROS production, which dye should I use?

01 March 2021 9,447 3 View

Does any one can help me choose a reasonable basis set for intermediate metal ions interactions with guanine (i.e Fe2+, Mn2+, Cu2+ and exc.)?

Hello every body Does any one has any idea to help me choose a reasonable basis set for intermediate metal ions (i.e Fe2+, Mn2+, Cu2+ and exc.) interactions with guanine or other DNA organic...

01 March 2021 6,187 2 View

Tooth extraction and subsequent dental implant placement in Sprague-Dawley rats induce differential changes in anterior digastric myofibre size and ?

01 March 2021 7,254 3 View

How to define tie constraint between rigid body and another part in dynamic explicit model of Abaqus?

Hi dear researchers I connected a rigid body into the part of my structure by tie constraint and then I added displacement to rigid body, in static general step every thing is fine and these two...

28 February 2021 3,442 2 View

How to increase solubility of Poly acrylic acid in Dioxane solvent?

I am working with Polyacrylic acid (100.000Da) and instead of water, I need to use another solvent (dioxane) to dissolve PAA. However, because of the high molecular weight, it's quite hard to...

25 February 2021 2,225 5 View

How can we theoretically calculate Elemental analysis(percentage) of atoms in covalent organic framework?

For example in one research article the Elemental analysis values of COF-TpPa-1 ( Triformylphloroglucinol (Tp) (63 mg, 0.3 mmol), Paraphenylenediamine (Pa-1) (48 mg, 0.45 mmol) are as follows...

24 February 2021 1,265 6 View

Is there any teachers based in UK who would like to take part in my study?

24 February 2021 4,833 3 View

Inpatient DBT to reduce parasuicidal behaviour?

Currently trying to obtain as many pieces of research as possible for my dissertation around the implementation of DBT within the inpatient unit for those with a diagnosis of BPD. Primarily...

23 February 2021 5,654 2 View

I have a problem with kanamycin - why the kanamycin doesn't affect?

Hi everyone, I need to expression of GFP with pET28 plasmid in E. coli BL21(DE3) plysE. Transformed cells have kanamycin and chloramphenicol resistance. Normally, only transformed cells should...

22 February 2021 4,032 4 View

What is the optimal propagation regime for pET-1M(KanR) and pMCSG7(AmpR) plasmids in DH5alpha E.coli?

Dear all, I am trying to harvest the low-expression plasmids in the mentioned E.coli strain. I constantly gel very low concentrations (30-50 ng/uL while the concentration is usually around 100...

08 February 2021 4,255 4 View

Why is there no fluorescence if GFP-expressing vector is present and sequence is correct?

We recently constructed a plasmid vector with a high-copy number ori, kanamycin resistance, and eGFP under control of the lac promoter but lacking the lac operator. However, the cells are not...

19 January 2021 7,834 2 View

Can I use G418 for selection of HEK 293 cell lines that already have a plasmid with kan and Hygro integrated?

I am doing a kill curve in HEK 293 cells with G418(0-1000ug/mL) and they don't die. They were previously transfected and selected with hygromycin and are integrated with a plasmid has also...

05 December 2020 3,232 3 View

Best way for knockout of gene in Bacillus genome?

Hi everyone! I would like to knockout a gene in the genome of Bacillus. To do that I tried to make a construct that has 1) a backbone, 2) a kanamycin resistance cassette, flanked by 3) the...

24 November 2020 489 1 View

How to grow yeast BY4743 with XX::MX4 - which medium components are needed?

I want to grow yeast (BY4743) with a certain knock out (deletion), the deletion cassette is KANMX4. I assume I have to use 200mcg/ml geneticin. But can anyone explain step by step how i have to...

19 November 2020 3,434 3 View

PMaxGFP bacterial transformation failure?

I bought a Lonza nucleofector transfection kit a few months ago, which has a pMaxGFP plasmid in it. Then we want to use this plasmid as the reference gene expression in some other experiments and...

14 September 2020 2,273 6 View

What is a good ligation strategy with compatible ends EcoRI and MfeI in the vector DNA and the insert?

I used to do this kind of thing and now have forgotten strategy please help and be specific. The vector is now linear having been digested with EcoRI and MfeI, then treated with CIAP, to prevent...

23 May 2020 2,377 1 View

Why I got relaxed plasmid from E. coli maxiprep?

Hi. I have faced a problem I never seen before. I have Origene pCMV-XL6 Entry plasmid without any ORF - just empty plasmid. It has Kanamycin resistance so I transform plasmid in DH5a E. coli...

17 March 2020 3,375 4 View

Why TOPO-D plasmids with insert are lost in the liquid LB? (being present in the colony)?

I amplified several PCR products and the bands were pretty good in size and unique. The PCR products were inserted into pENTR/D-TOPO, then they were transfromed into E. coli (TOP10 and DH5 alpha)....

09 February 2020 3,411 4 View