What is the most reproducible modification of TiO2?

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Color of spiro-ometad film?

What does the color of a spiro-ometad film indicate? I got purple, green, red, even black color of the spiro film. Is there anything we can get from the preliminary color analysis(e.g. oxidation...

21 February 2021 1,831 4 View

Dissolving AN-MA-IA copolymer in 50 % w/w sodium thiocyanate water solution. What is the white residue forming after polymer dissolved?

Dear colleagues! Recently I tried to dissolve commercially available samples of PAN precursors (acrylonitrile-methyl acrylate-itaconic acid terpolymers) in water solutions of sodium thiocyanate...

17 October 2020 6,083 4 View

What is the reason of poor resolution of AFM images of TiO2?

We prepare TiO2 samples using Titanium Isopropoxide, Ethanol, and Glacial Acid; We increase the amount of ethanol to decrease the thickness of the layer. However, the layers with thicknesses...

30 August 2020 4,031 13 View

Band in the negative control of qPCR product gel?

I persistently get a band in the negative control when trying to isolate RNA from cell samples and am wondering if it's contamination in the experiment, genomic contamination, or just the...

02 August 2020 6,486 1 View

If G is a tree, then L(G)D(G)L(G)=-2L(G). Is the opposite true?

It is well known that if graph G is a tree, then the following identity holds: LDL=-2L, where L is the Laplacian matrix of tree G, and D is its distance matrix. Is the opposite true? That is, if...

28 May 2020 4,298 3 View

Miocene green algae in thin sections?

Dear colleagues In attached photos, you will find green algae (?) from the Miocene glendonite-bearing rocks of Sakhalin (SEM photos of thin sections) Is anybody can help with identification of...

02 January 2020 4,041 3 View

Why images in scanning electron microscope(sem) got bright stripes?

why images in scanning electron microscope(sem) got bright stripes? an image is attached. it does not look like a material related contrast(polymers). it does not disappear with current, voltage...

02 January 2020 2,404 4 View

How to model Background Seismicity in EZ FRISK?

does anybody know how to model background seismicity in EZ FRISK 7.65? I understand we have to define it as grid source, but I don't quite understand the input parameter required, it requires...

03 September 2019 819 1 View

Could you recommend some papers where two CMIP5 experiemnts are compared: historical and pre-industrial control runs?

I am interested not in the technical description but in the case studies, e.g., when the variability of various fluxes is studied.

12 June 2019 3,088 2 View

Wrong ethanol IR spectra?

I've measured three different ethanol samples in my IR spectrometer, whose spectra are attached (one in absorbance and another in transmittance units). The measurement was made with liquid ethanol...

08 May 2019 5,677 9 View

Why can't make aluminum nitride film successfully by use sputter?

We use reactive sputtering process to make aluminum nitride film, and want to make c-axis aluminum nitride film on a silicon substrate, but the crystal orientation cannot be seen with...

03 March 2021 7,975 3 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

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

[Synthesizing Cu nanoparticles without using chemical reductants]

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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...

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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?

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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...

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1 nm thick MgO thin-film to be deposited on Si wafer using thermal evaporation. What will be the optimum deposition conditions?

Favourable conditions of base pressure, rate of deposition. Also, by which characterisation technique to be used to verify the thickness of the deposited film.

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

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How can I assign a velocity along one direction to CO2 molecules in a molecular dynamics simulation using GROMACS?

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Martins O. Omorogie

Mikhail.

You can dope titania with organic moieties that are easily absorbed in the visible region. This kind of doping is also reproducible. You can try it.

Mikhail Pylnev

Dear Dr Martins O. Omorogie, can you provide papers in which the same results were obtained by doping titania with organic moieties?

Michael Nazarkovsky

Plenty of reviews are available. For instance, see a presentation & article attached. Techniques I used for doping TiO2 are described in my articles. Have a nice time.