What does this phrase means, "0.5M in sulfuric group of poly(4-styrenesulfonic acid) (PSS)"?

I dont understand how to prepare the solution because i dont understand what does it mean, and i dont know the conc. of the PSS stock solution.

31 December 2018 2,181 1 View

Is there a free pogram to analyze the .pro file with profiling also from alpha step 500 as the main software is not free?

trying to analyze data at home while not in the lab

05 June 2018 8,276 0 View

What is an optimum parameter to C coat MO on glass substrate for SEM?

Using JEC 560 auto carbon coater 3KPa , and 30 s I think its a bit too long.

04 May 2018 9,555 2 View

Need advice to cut cross section of porous film on FTO for SEM. Sample came off when cut with glass cutter, no sample seen at edge of cut FTO. Help?

Cross section cut of porous sample /FTO scratch off sample from the edge of the FTO making it hard to check in SEM. Need help to cut it so the film stays on the edge of the cut.

31 December 2017 9,636 0 View

Can I freeze a CoPi/ metal oxide in N2 before cutting it cross section for SEM?

Planning to do it this way, but cannot help worrying about possible changes that will happen to Co-Pi coating.

31 December 2017 5,110 2 View

Do I mix the binder into ultra-sonicated powder immediately or wait for 2-3 hours to settle then mix supernatant with binder, and then stir it ?

Plan to make a paste but confused if we should wait for the sonicated powder to settle first and add binder to only the supernatant, or do we just add binder to the ultrasonicated powder...

07 August 2017 8,755 0 View

What paper have these ingredients: tungsten isopropoxide , acetic acid, ethanol and distilled water to synthesis WO3?

looking for a research paper synthesizing WO3 with the above ingredients.

05 June 2017 1,467 0 View

Can i add dispersant after precipitating metal oxide from addition of alkali and acid to metal oxide NP (chemical deagglomeration)?

31 December 2016 5,938 6 View

How to find concentration of solution based on solid content. The solution is made of synthesized powder suspended in liquid?

31 December 2016 7,328 2 View

Can 1- nonanol, acetyl acetone and triton X-100 be put in the same medium?

its for thin film paste making.

31 December 2016 7,819 5 View

Does any one know how i can prepare liver tissue with transmission electron microscope with good fixation?

i have problem in preparation of liver tissue with bad cell organelles and how i can adjust osmolarity

03 March 2021 8,890 1 View

I need to image mesoporous silica nanoparticles that are in ~100 nm size and do high resolution TEM to look at mesopores. what grids should I use?

Need to image mesoporous silica nanoparticles using the TEM. Also, need high resolution TEM images to see the mesoporous structure. Kindly suggest what kind of grids to use. Thanks, Shatadru

02 March 2021 1,787 2 View

How to repeat an operation on an atom selection for multiple times in PyMol?

Hi, I am trying to construct a multi-layer fibril structure from a single layer in PyMol by translating the layer along the fibril axis. For now, I am able to use the Translate command in PyMol...

02 March 2021 4,569 4 View

What analysis to choose with a large neste dataset and clearly skewed or kurtotic distributions?

Hello! I have a dataset of n=3000 nested within 8 countries with approximately 200 or 400 responses in each country. I originally planned to perform multilevel modelling with 4 dependent variables...

02 March 2021 6,865 1 View

Shall I skip the measurement model in SmartPLS?

Hello everyone, I had run a mediation model in SmartPLS using questionnaires that were already validated among my statistical population. A professor who edited my paper -though she is not...

01 March 2021 3,052 3 View

SEM or Multiple Regression for an analysis without Latent Variables?

Hello, I have three hypothesis to test, all with the same IV. I am testing if the effect of the IV on the first DV is mediated by awe. I am then measuring whether the effect of the IV on a...

26 February 2021 8,399 5 View

How to plot the probability paper of Gumbel distribution using R programing?

In R-studio, there are many commands of Gumbel package. Arguments are also different. I`m asking about the alpha parameter of the Copula which must be greater than 1. If this is the one used to...

25 February 2021 5,229 3 View

What's the concentration recommend for recombinant protein use in western blotting?

I'm currently working having problem with the concentration for recombinant protein use in western blot, the one been used is Recombinant Human CD19 Fc Chimera Protein-rndsystem which does not...

24 February 2021 8,514 3 View

How to clean up TEM grid with plasma cleaner?

I need to clean the hydrocarbon contamination on the carbon substrate of TEM grid. However, I heard that substrate could be broken by the powerful plasma. My substrate is pure carbon, with ~3nm,...

23 February 2021 3,262 5 View

Are there methods for automatically mapping floodplains, fans and terraces?

I want to map these river geoforms with as little subjectivity as possible. I have a high resolution DEM generated by drone data.

22 February 2021 7,800 3 View