Optical dentisy(Od) of microbe using uv-vis?

Dear All I have checked OD(optical density) reading of microbe against dragon fruit peel extracted using uv vis. The wavelength use is 600nm. May I know as theorytically how this instrument get...

06 July 2018 1,764 0 View

Small diffusivity effect that results in reduced antibacterial activity?

Dear All One of my analysis is check antibacterial activity using zone inhibition test. The result found is no colony appear on the disc. The reason is might be high molecular weight, chemical...

03 April 2018 4,218 0 View

What suitable journal?

Dear All I have one manuscript entitled "Identify Type Of Phenolic Compounds Using Uhplc-Esi-Qtrap-Msms And Antibacterial Activity On Liquid Extract Of Pitaya Peel" What kind name of journal...

31 December 2017 7,663 6 View

Which publisher Should I sent the journal?

07 August 2017 4,563 0 View

Differences between Polar compound and phenolic compound?

Hi all What differences between polar compound and organic compound? polar is like charge positive or negative such as phenolic compound. Meanwhile organic compound contained C and H molecules. Is...

05 June 2017 5,282 0 View

Difference between phenolic acid and flavanoid?

What difference between phenolic acid and flavanoid, Can I said, phenolic acid have benzene ring that attached with 1 carbon or 3 carbon. Besides that flavanoid is combination from phenolic acid...

05 June 2017 8,526 2 View

Ferrous and non-ferrous metals?

what differences between ferrous and non-ferrous metals?are they include in the precious metal?

04 May 2017 1,631 4 View

Which oneis better QTOF or QTRAP?

Dear All Which one is better to determine phenolic compound inside the dragon fruit peel either use QTOF or QTRAP? ESI QTRAP is normal resolution but with ion trapping for better spectrum...

03 April 2017 9,407 7 View

How to make confirmation type of phenolic compounds inside the peel?

Dear All I already analyzed dragon fruit peel using lc-qtrap-esi msms to identify type of phenolic compounds by using full scanning mode. Here I attached file for your perusal. Can I said this...

03 April 2017 2,124 2 View

Gap of Research?

10 November 2016 5,700 1 View

What is your perception on using visual analysis or quantitative approaches to evaluate data from single-case research designs (n of 1 trials)?

Results of single-case research designs (i.e., n-of-1 trials) are often evaluated by visually inspecting the time-series graph and computing quantitative indices. A question our research team is...

03 March 2021 687 1 View

What solvent can I used for Paal Knorr reaction between 6-amino hexanoic acid and 2.5 hexanedione?

I am try to make the Paal Knorr reaction between 2.5 hexnedione and 6-amino hexanoic acid, my problem is type of solvent to use, because 6-hexaminohexanoic acid is soluble in water but I am not...

02 March 2021 4,443 2 View

How can I make stacked bar graph with scatter plot?

I want to make a stacked bar graph with showing each data value as dots. I tried with graph pad prism, version 6, but could not succeed. Does anyone have tried before making such graphs?

01 March 2021 9,383 1 View

Is CD44 degraded in lysosome together with hyaluronan after CD44 mediated endocytosis of hyaluronic acid?

Also when RHAMM binds hyaluronic acid, they get internalized, will RHAMM also be degraded? Or both CD44 and RHAMM will be transferred back to the cell membrane? Asking for breast cancer cell line...

01 March 2021 8,169 2 View

RIA. How to measure?

When you use RIA, with a control the unknown sample with antibodies, you bare in mind the binding sites of the antibodies. However you still need to measure labelled antigen (radioactive) and not...

28 February 2021 2,133 3 View

I want to performe MALDI-TOF MS for bacterial identification, I would appreciate it if anyone can tell me the matrix solution preparation protocol ?

based on what I've studied on multiple papers, for peptide and protein identification Alpha-cyano-4-hydroxycinnamic acid (CHCA) is an appropriate matrix to use, I also know that the CHCA powder...

26 February 2021 6,799 3 View

What is the most suitable resuspension buffer for TCA/acetone precipitated protein?

I need to extract protein from fermented carbon sources for Bradford assay. Most researchers experiencing insolubility of pellet in resuspension buffer. Please assist me to select most suitable...

26 February 2021 7,129 3 View

What could be reason for getting such type of graph for complex impedance in case of polymer blend films?

Its effect appears in real part of ac conductivity also. Can anyone suggest any reason behind it?

26 February 2021 3,487 3 View

Can I use a graph from a another source in a thesis?

I have a permission from X company to use their graph from a report, but they have a reference in the bottom left corner of the graph as follows: "Source: Database Y". Is it OK to use this graph...

24 February 2021 2,269 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