Best synthesis method for large scale silver nanoparticle synthesis with high yield?.Best post processing steps after nanoparticle synthesis?

I have chemically synthesized silver nanoparticle to combat microbes on wound site. I have used many methods of synthesis, but I found minimal field of silver NP product.I am getting whitish...

11 February 2021 4,964 13 View

Is ANOVA or Kruskal-Wallis applicable to test the group means, if each group has ca. 40 samples, but each sample is derived from 1024 sub-samples?

Dear Scholar Fellows, I would be interested in your opinion whether an ANOVA test (or Kruskal-Wallis-test) can be applicable in the following situation: a) 8 laps are driven on a test track,...

17 August 2020 887 3 View

What is the major difference between analyzing the elemental composition of fish otolith using EDS and ICPMS or ICPOES?

Here, I mean the accuracy and the major differences.

23 February 2020 5,798 8 View

No title

12 February 2020 4,692 5 View

Is thermogravimetric analysis (TGA) a good method to identify the weight percent of inorganic compounds in a sample (contains organic compounds too)?

The sample is Diesel Exhaust Particle, it contains both organic and inorganic components. The organic components include PAH, aliphatic hydrocarbons. The inorganic components include metals and...

20 January 2020 2,313 5 View

Can XRF analysis be used for identifying organic compounds (example: hydrocarbons) in a sample?

More specifically, diesel exhaust particle is the sample.

05 January 2020 7,950 5 View

What is photosensitizer and photocatalyst are they same concept or different ?

The material like tris bipyridyl ruthenium trichloride II [Ru(bipy)3]Cl2 or dyes such as rose bengal,eosin are photocatalyst or photosensitizers?

27 December 2019 7,061 4 View

What is difference between classical semiconducting nanocomposites as a photocatalyst and organic dye based photocatalyst ?

Are the concept of valence band and conduction band applies for the dye based photocatalyst like semiconductor based material if it is then how?

27 December 2019 3,464 3 View

Can Spodoptera litura eggs be preserved?

How long can we preserve Spodoptera litura eggs in refrigeration without opting for cryopreservation. What are the conditions to look out for?? Can they be stored indefinitely in refrigeration?...

03 October 2019 6,403 2 View

Where is the sensor data file loacated in rpl protocol code in contiki os ?

where is the sensor data file loacated in rpl protocol code in contiki os ?

18 June 2019 9,487 2 View

Is there a classification scheme for rock cavities or caverns with respect to their size and shape?

The range of forms and sizes of cavities in rock is very big. Is there a classification scheme for rock cavities regarding their size and shape?

02 March 2021 4,511 3 View

How the wettability of rock sample can be changed by ageing in pure hydrocarbon oils only?

I want to do wettability analysis of hydrocarbon oil (octane)/rock/surfactant solution system. but to do the analysis first I have to make rock surface oil-wet. Since hydrocarbon oil does not have...

27 February 2021 5,383 3 View

Any references about insects or animals that can damage or weathering of rock or fossil material?

Are there any references to insects or animals that can cause damage or weathering to the rock or fossil material? books or paper that would be nice. Thank you very much!

24 February 2021 6,805 3 View

Physical-chemical formation of stalactites/stalagmites. what promotes the formation/growth of these structures?

I know, or think I do, the basic idea behind these natural structures, as from what I know they form due to water dripping from the top leaving a salt deposit behind. But started to wonder about...

22 February 2021 1,400 4 View

Can I arbitrarily take a cycle number of 40 for the gene that was not expressed at all in qPCR results calculation?

I ran RT-qPCR for a control and a treated group and it appears that my gene of interest was not expressed at all in any of the subjects in the control group. So I was wondering if I could...

20 February 2021 6,243 10 View

Does anyone know if the Quantstudio 3 qPCR machine requires a passive reference when Using SYBR? I ran a qPCR and got the plot in the attached file.?

I know that my target is in my sample as I extracted it from cell culture myself. These plots show some amplification. The first one seems O.K for the first 36 cycles but then collapses at the...

14 February 2021 2,809 2 View

Are there any exception like work hardening in metals elastic limit due to dynamic loading?

The samples made out of spring steel are taken from same lot. The specimens were shaped following heating to forging temperature - Forming- Hardening -Tempering methods. After storage of almost 6...

11 February 2021 952 6 View

Wave velocity and rock density paradox?

Practically it is known that seismic velocity increases as rock density increases, why then does the wave velocity equation involving elastic moduli and density indicate that velocity is inversely...

09 February 2021 1,843 3 View

Having trouble with qPCR amplification plots. My curve's never seem to reach a plateau. Any ideas?

The parameters of the curve all seem acceptable, typically reactions results are above 0.9852, -3.1 to -3.6 slope, and 90-110% reaction efficiency. The results seem to be what I would expect from...

04 February 2021 1,138 3 View

Conversion of Vs to Vp in geophysical surveys of rock masses?

Dear colleagues I would like to have your kind opinions on the issue that concerns rock mechanics and geophysics in relation to it, for a very specific problem I have. I have attempted to find a...

03 February 2021 3,605 3 View