How can I build one phylogenetic tree for an arthropod community when I had known their scientific names?

I am working on the phylogenetic analysis for communities of plants and arthropods. A standardized protocol of building phylogenetic tree for plant species list that was widely used in studies....

29 December 2020 181 3 View

Article of hierarchically structered porous nanofibers by electrospinning?

Hello folks I'm looking for the artice which shows difference of hierarchical structures between membranes and nanofibers. From introduction, I remember it kinda said: hierarchical membranes are...

15 September 2019 470 1 View

How to use mass-spec to detect covalent bonding of a dimer complex?

Hi all, I have a protein supposed to be around 20 kDa, but somehow on SDS-PAGE it runs at 40 kDa and previous literature also showed the same behavior and suggested a dimer complex. I am little...

30 July 2019 4,279 3 View

How to test the physical and chemical stability of solution or colloid?

How to characterize the stability of DMF ( N,N-Dimethylformamide ) or DMSO ( Dimethyl sulfoxide ) solution of Lead Iodide? Can you give me some advice or references? THANKS

06 June 2019 6,073 1 View

How to digest bacterial EPS at physiological temperature?

My bacterial biofilm tends to aggregate and agglutinate and I want to separate them at physiological temperature (25 - 30 C) in liquid. Any good suggestions of enzymes and preferably with...

28 January 2019 4,966 3 View

What is size of a rat hippocampus cell?

I am trying to building some microchannel devices currently to culture neurons, but I want to know the initial size(diameter) of the rat hippocampus cells (before they formed the axon and...

20 December 2017 4,748 3 View

A good way to analyze miRNA qpcr data when only 1 reference gene(it turns out unstable by genorm stability ranking across the samples) is included?

Dear all, I'm looking for a proper way to analyze my miRNA qpcr data. The study was aim to screen 10+ miRNAs which have been reported to have strong relationship with a certain disease in the...

13 February 2017 9,642 3 View

Complex permittivity at DC field?

The complex permittivity of a material is typically written as epsilon=epsilons+i*sigma/omega.(epsilons: the real part, sigma: conductivity, omega: angular frequency). As we know, any material has...

14 November 2016 1,951 5 View

How to dissolve DMBA in corn oil?

I want to dissolve DMBA in corn oil or sesame oil to oral feed the mouse to induce mammary tumor, according to many protocols published. But the question is how to dissolve DMBA in oil? Should...

17 July 2016 8,935 3 View

Convergence conditions of a stationary iteration method for linear systems?

Recently, I obtain a linear system, $Ax = b$, where $A$ is a nonsingular, strictly diagonally dominant $M$-matrix. Then I also got a matrix splitting $A = S - T$, where $S$ is also a nonsingular,...

27 June 2016 6,904 4 View

Polymer composites suddenly solidifies?

I am making polymer composite by solvent mixing method. When I am trying to add filler solution in polymer solution it quickly get solidified. How to make them then uinform? It doesn't give time...

03 March 2021 7,540 4 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 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

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

What is involved in morphological changes of SEM images of a substance?

In the sem analysis of CaCO3 nanaoparticles, the morphology images showed spherical shaped particles but the proposed morphology for these type of nanoparticles is trigonal. I prepared the...

01 March 2021 1,960 4 View

How can extract ciprofloxacin hydrochloride disolve in water er to organic solvent such as dichloromethan or any other solvent?

I need a procedure to extract the ciprofloxacin hydrochloride from aqueous solution by using dichloromethane in detail,. I thank you very much.

01 March 2021 4,306 1 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

What is the state of the drug inside solid lipid nanoparticles (SLNs)?

I am a little confuse with the mechanism of solid lipid nanoparticles (SLNs). The main point of encapsulating drugs into SLNs is because some drugs have low solubility in water. Therefore, SLNs...

01 March 2021 3,703 3 View

How to make fractions of chloroform extract of plant, using seperating funnel?

28 February 2021 8,466 2 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