ZnS oxidizes to ZnO!!why??

when I put my ZnS solution in the chemical bath, the ZnS oxidizes so there are ZnO peaks appearing because of the reaction with the oxygen in the air, despite the fact that I close the beaker...

14 February 2021 5,778 9 View

Are any database collected cell penetrating anticancer peptides ?

Dear researchers, Anticancer peptides(ACPs) with cell-penetrating properties can enter to cytoplasmic space of cancer cells and induce cell death. but, I could not find the database that...

29 January 2021 707 3 View

Can anodizing of stainless steel 304 make its surface non-electrical conductive?

Anodizing of SS304 creates a thick oxide layer on that. Is this layer non-electrical conductive? What thickness should be obtained in order to make the surface non-electrical conductive?

01 January 2021 3,359 4 View

How can psychoanalysis make solution for social issue?

how can we use psychoanalytic perspective for describing, meaning, understanding and solving social problems(such as ethical problems, political problems, ...)?

27 December 2020 9,314 13 View

Who is to be cited in the research/review articles?

When an author want to cite the work/idea/theoretical model/results/facts for publication purpose, who should s/he cited (giving citation credit)? (a) the first author (pioneer) who...

09 November 2020 6,929 3 View

What is the best method to zoning and classify the biomes, and ecoregions in a province?

Hi everyone What is the best method to zoning and classify the biomes, and ecoregions in a province? How is it done? I look forward to your valuable answers. Thank you

06 November 2020 5,614 11 View

Is there any advantage on adsorption process to be done at solution pH near to 7 (neutral)?

Generally, it has been reported that some of the adsorption phenomena are of pH dependent. Some studies have shown that the effective removal of contaminants from wastewaters/aqueous media can be...

04 November 2020 8,852 5 View

How can I do y-scrambling( y-randomization) to test the developed machine learning-based model ?

Dear researchers : y-randomization is one of the special tests of machine learning approaches. I want to evaluate my developed machine learning-based models, to predict active peptides, by...

26 October 2020 1,196 2 View

Which type (kind) of water is suitable for preparation of agar media for microbiological purposes?

Between tap water, distilled water, double distilled water and deionized water, which one is mostly recommended to be used to prepare agar media for microbiological purposes?

25 October 2020 6,093 34 View

What is the difference between series resistance and resistance in solar cells?

16 July 2020 7,187 2 View

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.

28 February 2021 3,640 3 View

Does different dilution factors affect negatively on NH3 reading ?

I have a sample of treated water sample & asked to obtain ammonia conc. in sample using a machine with 5-25 ppm detection range. However, upon testing with different dilution factors, all...

27 February 2021 8,483 3 View

Unknown debris sheets observed in cell culture flasks?

Hi, We culture neural progenitor cells in T175 culture flasks coated with PLO-Laminin. We have successfully grown these cells with our protocol for months. Recently, we observed large sheets...

25 February 2021 3,443 4 View

How to prepare a thin polymer film by post-polymerization/crosslinking?

24 February 2021 2,362 5 View

Is is possible to pole with corona poling pellets of the sample material instead of thin films?

As it is highly probable that pellets will have a higher degree of air gaps and voids than thin films, is it possible to pole the samples with corona poling nevertheless? Or is there the...

24 February 2021 1,349 1 View

How to troubleshoot Electrochromic Films and Electrochromic Devices?

I am trying to characterize an electrochromic system. The system uses ITO electrodes on glass, WO3 as the electrochromic film, and NiO as the ion storage layer. When I deposit NiO and WO3 and...

23 February 2021 9,592 2 View

Is there a suitable way to confine cell attachment area inside a multi-well plate?

Are there any types of cylindrical cell culture inserts that are designed to confine cell seeding area? Say, if I'm using a 12 well plate (3.5 cm^2/well), but only want to seed cells in the middle...

22 February 2021 7,127 4 View

How to improve the adhesion between germanium and silicon monoxide thin film layers using EBEAM evaporation?

I want to deposit multilayer coating of germanium and silicon monoxide on silicon wafer using ebeam evaporation?

21 February 2021 2,141 3 View

How can I measure the thickness of thin layers deposited on textured glass susbtrates?

I want to measure the thickness of aluminum oxide and titanium oxide layers deposited on textured glass substates. The layer thicknesses are typically below 100nm.

21 February 2021 5,465 4 View

How do I calculate absorption coefficient of my thin film if I dont know the thickness? Or how can I calculate the thickness of my sample?

I have done Uv-vis characterisation of my thin film and have received absorbance and transmittance data. Now I want to calculate the absorption coefficient but I dont know the thickness of my...

21 February 2021 7,148 8 View