How can I measure the stability over time nanoparticles ?

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Synthesis of silver nanoparticles from leaves and tubers, and effects of AgNO3 concentrations ?

I'm trying to synthesize silver nano from parts of plants - Synthetic silver nanoparticles are thick and yellowish brown - Nano-silver from the roots is transparent at high Ag ionic...

08 September 2018 9,874 3 View

How to extract pure silver nanoparticles ?

I'm trying to synthesize silver nanoparticles. Some materials need to be centrifuged in order to remove unwanted material, washed with distilled water and dried. I do not understand this. Can...

08 September 2018 5,009 3 View

How can I draw a graph like this?

I have full data I tried Statgraphics and origin but it did not work

07 August 2018 9,415 0 View

Biovar test R. solanacearum bromothymol blue changes color from Yellow to Blue ?

I wanted to try another Biovar method, so I keep biovar test medium in pH 4.5 (yellow) and after 28 day the indicator changed color from Yellow to Blue. What happen ?

03 April 2018 7,093 0 View

How can we calculate the concentration of nanoparticles silver from TEM or UV-VIS ?

I produded NPs silver from trichoderma sp, I have UV-VIS machine, sample NPs 500ppm silver synthesized by chemical methods and TEM image of my NPs silver. Can I calculate the concentration of...

02 March 2018 7,171 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

12% ledeburitic cold work tool steel, etched for revealing retained austenite, any help for clarifying?

Hello everyone. Given microstructure image belongs to a 12% ledeburitic cold work tool steel (annealed and tempered). The sample was etched with picral (100 mL ethanol and 4 g picric acid). I...

02 March 2021 4,119 3 View

Is There Any Feasible Method To Test Fluorescent Compounds Other Than Fluorescence Spectrometers ??

Is There Any Feasible Method To Test The Efficiency Of Fluorescent Compounds Other Than UV Spectrometers ? Suggestions Would Be Appreciated !

02 March 2021 5,785 3 View

Is there any effect of different colours of light (white, red, yellow, blue etc.) on the rate of photosynthesis? If yes, why?

Light is inevitable for the process of photosynthesis reaction. Naturally sunlight plays the vital role for this process. Light may be of different colours like white, red, yellow, blue etc....

02 March 2021 7,890 2 View

Is there a powerful system for the security of the systems distributed on IoT systems?

02 March 2021 3,858 10 View

What is Nano technology with coronavirus helpe the human..and is it nano mterals removal of covid19?

I anwar by adsorption or reaction ..but it is either more method...

02 March 2021 4,811 2 View

How to compare different concentrations of nanoparticles for characterization from ICP-MS?

I took measurements of different concentrations of 15 nm and 5 nm Au nano particle solutions. I'm trying to determine which concentration I measured gives the best reading overall. I also...

02 March 2021 7,626 1 View

How Relativistic effects is one reason for lanthanide contraction?

The Lanthanide contraction which is the decrease in ionic radii of the elements in the lanthanide series from atomic number 57, lanthanum, to 71, lutetium, is due to poor shielding of the 4f...

01 March 2021 2,272 4 View

Can chitosan alone can act as a reducing agent for Cu(0) nanoparticle sythesis?

[Synthesizing Cu nanoparticles without using chemical reductants]

01 March 2021 8,359 1 View

Anyone found any research papers on solar furnace design calculations (for solar concentration)?

I am thinking about working on solar furnace with heliostats that concentrate sunlight and heat molten salt, but currently no luck with research. Not a lot of papers based on the subject. (check...

01 March 2021 5,023 5 View