Any natural extract (that is easily available) or any drug combination triple which i can use against gram negative?

I'm working on gram negative i want to use any natural extract (plant extract) or triple drug combination against its biofilm formation.

14 February 2021 1,403 3 View

Can I use hcl to adjust ph rather than glacial acetic acid?

In alkaline lysis solution3 acetic acid should be used to adjust pH according to protocol. Can I use hcl instead of glacial acetic acid? Will there be any change in composition of solution?

08 January 2021 7,764 3 View

What is the best method for plasmid dna extraction??

I want to extract plasmid dna from bacterial culture guide me what will be the most appropriate method.

05 January 2021 1,118 14 View

How can I super impose my 3D structure protein with wild?

Hi I got a 3D protein structures in my research and want to superimpose it with the wild. I am working with SARS-CoV2 and found a deletion that I want to compare with that of Wuhan as a wild. I...

16 December 2020 3,940 5 View

No title

10 December 2020 6,420 7 View

How can I convert my amino acid sequence in PDB formate?

I have some sequences of Spike protein of some Covid 19 samples that have been sequenced in my laboratory using NGS. For analyses of those, I need to convert those sequences into PDB format. I am...

01 December 2020 690 3 View

Why I get this type of band after doing PCR?

After doing a PCR with my specific primer I got multiple bands instead of getting a unique band. I am totally astonished after getting this. Can anyone guessed what happened why I get this band...

26 October 2020 3,714 17 View

Has e-learning succeeded in replacing face-to-face learning during this pandemic?

Do you believe that e-learning was able to replace face-to-face learning during this pandemic, and what enhancements can be pursued to improve e-learning?

03 October 2020 2,404 11 View

R or Python for Machine Learning?

Which software do you think it's better for machine learning, R or python, and what are the strengths of each one of them based on your own experience?

22 September 2020 5,377 5 View

Which is used most (plants, animals microbes) for preparation of medicines?

What is your opinion for medicines preparation?

03 August 2020 8,376 40 View

What is the best way to keep an anaerobic chamber anoxic in the absence of hydrogen?

I'm a graduate student who works with an anaerobe, so I often work in an anaerobic chamber. I've been working on an assay that involves the steady-state of the quinone/ quinol pool. Anoxic...

03 March 2021 2,971 1 View

How do I increase the yield of my PCR product?

Hello, We would like to increase the yield of our PCR product. We are running a series of PCR reactions that is targeting ~1.1kb sequence. We begin each reaction with ~400pg of template DNA...

02 March 2021 4,029 3 View

12% ledeburitic cold work tool steel, etched for revealing retained austenite, any help for clarifying?

Hello everyone. Given microstructure image belongs to a 12% ledeburitic cold work tool steel (annealed and tempered). The sample was etched with picral (100 mL ethanol and 4 g picric acid). I...

02 March 2021 4,119 3 View

How to polymerize TEOS?

I want to polymerize TEOS on a surface. I know that NH4OH is a preferred catalyst and an alcoholic solvent should be used .But I can not find certain amounts of each material to use. Does any one...

02 March 2021 1,404 6 View

PACYC PCR not working after several attempts. Would anyone have any suggestions?

So, I have been trying to run a pACYC PCR which will be used later on for a Gibson Assembly. However the PCR is not working. I have already tried gradient PCR and changing extension time; however...

02 March 2021 1,146 2 View

Ester cleavage conditions?

Hi all, I need to cleave the ester in Ethyl 2-amino-1H-imidazole-5-carboxylate to make the carboxylic acid and retrieve the product from solution to use in downstream applications of linking to...

01 March 2021 8,766 3 View

How to quantify carbon deposition on CuZnAl catalyst?

Dear All, I want to quantify carbon deposition on the surface of the CuZnAl catalyst. I have tried thermogravimetric analysis, but I've got weight gain as the active Cu- get oxidised. Does anyone...

01 March 2021 1,907 3 View

Why Trivalent chromium start precipitating above PH 5 ? Moreover discuss difference between adsorption of chromium and precipitation of chromium ?

I am a student of MS Environmental Engineering and started my research phase. I am working on metal removal ( chromium iii ) by using activated carbon prepared from the agricultural feedstock. So...

01 March 2021 5,475 2 View

How to separate water from glycerol solvent in a solvent recovery vacuum distillation column?

I am currently doing my third year design project. I have been assigned to design a glycerol recovery column in vinyl acetate monomer production. The process unit before the recovery column is an...

01 March 2021 9,525 4 View

How to address this issue in the analysis of Real-Time PCR results?

To dear Researchers, I was analyzing a series of concentration for estimation of Real-Time PCR efficiency. The concentration was 1:10. I used MS-excel to evaluate Slope. The result of slope was -8...

01 March 2021 8,683 4 View