How to design a reactive extraction process in Aspen Plus?

Hello, my task is it to create a specific extraction process. There is a mixture containing water, nitric acid and hydrochloric acid. It is known, that tributyl-phosphate is a solvent, which...

03 January 2021 4,163 3 View

IC50 value from this graph?

01 January 2021 6,848 4 View

Anyone knowing any software for scientific graphs plotting?

I need some help

03 December 2020 6,794 6 View

Autodock final stage execution appears with the following error; "WARNING: Unrecognized keyword in docking parameter file"?

Hello everyone, I do have an error while executing the final stage of autodock. The following massage appears and the program puts on hold. "WARNING: Unrecognized keyword in docking parameter...

20 September 2020 8,271 2 View

What is the state of the art in chiral NNN type tridentate ligands?

What are the chiral NNN type ligands that have afforded best chiral induction in organic transformations catalysed by transition metal complexes? Any NNN type ligand and any organic transformation!

21 May 2020 1,468 7 View

Can anyone suggest good survey platforms which allows uploading of audio+video stimuli and collecting audio responses in addition to survey ?

Can anyone suggest good survey platforms which allows uploading of audio+video stimuli and collecting audio responses in addition to survey ? It would also be helpful if you could recommend few...

11 April 2020 3,147 3 View

How many imaginary frequencies does a concerted transition state have?

Say, a concerted transition state involves the breaking of two bonds and the associated making of two new bonds. Does each bond making/breaking has a corresponding imaginary frequency, so in total...

19 March 2020 5,236 4 View

How do you measure the density, surface tension, freezing point, viscosity, refractive index of deep eutectic solvents?

A deep eutectic solvent is prepared by mixing a quaternary ammonium salt with metal salts or a hydrogen Bond donor such as urea to form a liquid with a melting point lower than the melting points...

16 March 2020 2,266 5 View

Is there any direct HPLC method for quantification of PHB,PHV using C-18 Reverse Phase column?

* Crotonic acid assay is the most rapid and simple method of quantification of PHB. * Karr et al., 1983 showed extension of crotonic acid assay into HPLC for PHB detection. * While Del Don et...

13 January 2020 8,341 2 View

What is coffee bean constrast in Tansmission electron microscopy?

How can we identify the precipitate /matrix relationship (coherent/incoherent) from coffee bean contrast observed in the precipitates.

01 December 2019 3,277 1 View

How to identify what type of fillers are in a polymer?

Hello everyone, I have some PHAs blended with fillers and nucleating agents, yet I don't know what kind of fillers or nucleating agents. The producer has shut down and there's no way to get in...

24 February 2021 1,356 8 View

What is the proper in vitro culturing method to get information about the activation of innate immune cells by VLPs?

Dear All, I am interested in studying the response of immune cells against virus-like particles (VLPs). I used the PBMC in vitro assay and treat it with the VLP using PHA as a positive ctrl while...

16 February 2021 1,337 2 View

How to measure the hardness for PLA & PHAs polymers?

Hello, I am a bit confused on whether to follow ASTM D785 (Standard Test Method for Rockwell Hardness of Plastics and Electrical Insulating Materials) or ASTM D2240 (Standard Test Method for...

21 January 2021 7,487 4 View

How to do variation partition for a distance matrix for microbial ecology?

I have bacterial, fungal, and protist OTU table. I want to know to what extent protist and fungi distribution can explain the bacteria distribution. I only know Mantel test could do a correlation...

11 January 2021 4,164 2 View

Can Fecal Microbiota Transplantation from young heathy person to elderly persons improve health conditions?

06 January 2021 7,353 10 View

How to prepare solid polyhydroxyalkanoate (PHA) polymers for in solution Nile Blue A staining analysis?

Hi all, I am trying to make a standard curve for Nile Blue A fluorescence using Poly(3-hydroxybutyrate-co-3-hydroxyvalerate) as the standard and a plate reader to measure fluorescence. My issue...

02 January 2021 3,027 2 View

Why below-ground ecology is still unexplored (majority of it) in our country ?

Below ground ecology or below ground ecological functions and ecosystems roles are very crucial and highly significant for any ecosystem especially for the forest ecosystems. The interaction among...

02 January 2021 6,912 3 View

Which search engines can I use to get the source of a certain microbial strain?

I am searching for a certain website through which can I get the source of certain microbial strains, especially probiotic strains I mean a search engine contains a database of the identified...

20 December 2020 5,144 5 View

Shortcomings or consequences of biological synthesis of silver nanoparticles?

Here I want to ask about the shortcomings and consequences of the biological synthesis of nanomaterials. Especially plant and microbial synthesis. Suggest me some reference paper. Thank you

20 December 2020 8,987 3 View

How much the microbial exploration in oil and gas industry is applicable?

Microbial oil and gas prospecting (MPOG) I would grateful it if you could provide me with your invaluable comments and ideas on the following questions: 1- Do you consider MPOG as a promising...

15 December 2020 9,895 2 View