How do we calculate the band gap from UV spectrum of a colloidal nanaoparticles?

How do we calculate the band gap from UV spectrum of a colloidal nanaoparticles.

03 April 2016 7,580 1 View

What is the significance of the combinational modes in Raman spectra?

08 September 2014 4,018 6 View

How can one find the octahedral and tetrahedral sites of Fe3+ iron phosphate glass using Mossbauer spectroscopy?

03 April 2014 8,571 3 View

How is writing a thesis different from writing a paper?

How do we direct the chapters of the thesis?

07 August 2013 816 21 View

Why is the Mossbauer spectrum not able to distinguish Fe57 at tetrahedral and octahedral sites in superparamagnetic Fe3O4? Why do all the superparamagnetic iron oxide polymorphs give almost similar spectrums in spite of different structure and oxidation state?

...

04 May 2013 6,109 13 View

What are the possible factors that affect A23 ratio and the width of the Mossbauer spectrum?

Other than the crystal orientation with regard to gamma rays, which factors influence the intensity of the 2nd and 5th? How effectively does the sampling or the morphology of the sample affects...

01 February 2013 7,083 19 View

Is the strain in nano particle greater than thin films.

Which method is the best to calculate strain from XRD?

01 February 2013 8,598 4 View

Coprecipitation of Fe3O4

Why do FeOOH co-exist with Fe3O4 when the [Fe+2]/[Fe+3] doesn't maintain 1:2?

10 November 2012 6,864 3 View

How effective is "Fullprof" compared to other packages for analyzing XRD?

How effective is "Fullprof" compared to other packages for analyzing XRD? How to handle it as for a beginner?

10 November 2012 4,245 3 View

Alpha-FeOOH vs H-O-H

Will FTIR be able to differentiate FeOOH and the H2O adsorbed on the surface of iron oxide nanoparticle?

09 October 2012 7,689 4 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

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

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

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

What are the new 2D nanomaterials were used for Silver nanoparticles stabilization?

In the stabilization of AgNPs are vital in current research interest. However, some of the 2D nano-materials like graphene oxide, MoS2, etc... previously used to stabilize it. But still they shown...

01 March 2021 2,207 3 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 check the uv-vis absorption of nanoparticle by surface plasmon resonance?

I try to check the uv-vis absorption of Indium nanoparticle. Now I am measuring in solution, can I measure it in the form of a film?

01 March 2021 930 3 View

Distribution of particles in metal matrix?

How would define the "good" and "poor" distribution of particles within the matrix. Is there a quantitative solution to assess the distribution of the particles, which then having denotation of...

28 February 2021 7,397 8 View

How can I calculate the rdf of water molecules around 'Na' ions that are closest(adsorbed) to the nanoparticle(solute)?

Hi, I want to calculate the radial distribution function for water molecules around the Na+ ions adsorbed on the surface of a spherical nanoparticle using the gromacs trajectory dynamically? For...

28 February 2021 5,650 1 View