How to perform EEG classification of Alzheimer and control groups?

I am doing a project on classification of EEG signals of Alzheimer's disease and control groups. Previously, I extracted the alpha power of the EEG signals and found out the strengths. I want a...

18 February 2021 8,502 2 View

Where can I get a Music therapy database for Alzheimer's Disease?

I am working on the effect of music therapy on persons with Alzheimer's Disease. I require EEG signals of healthy individuals and people with Alzheimer's Disease/Dementia that have undergone music...

22 January 2021 8,613 5 View

Why did I get my absorption peak at 212 nm for Zinc Oxide nanoparticles?

I found a paper on why I received a peak at 212 nm, for UV-Vis spectroscopy, when the absorption range should have been around 250 to 370 nm depending on the preparation process. The paper said...

08 March 2019 1,351 5 View

Why did I get my absorption peak at 212 nm for Zinc Oxide nanoparticles?

I found a paper on why I received a peak at 212 nm, for UV-Vis spectroscopy, when the absorption range should have been around 250 to 370 nm depending on the preparation process. The paper said...

02 March 2019 8,110 5 View

Why did my zinc oxide nanoparticles and gelatin hydrogen defeats too soon?

02 March 2019 9,808 4 View

How should i prepare a gelatin/zno nps based hydrogel?

I have prepared my nanosuspension solution by sonicating 50mg zinc oxide nanoparticles in 10 mL distilled water. I am adding this to gelatin solution prepared using 1gm gelatin in 15 mL distilled...

01 February 2019 9,780 3 View

How to prepare sample for SEM analysis for a hydrogel?

I have a hydrogel prepared made of gelatin and Zinc Oxide nanoparticles. How should I prepare my sample for SEM analysis?

01 February 2019 6,556 3 View

How to prepare a gelatin hydrogel with zinc oxide nano particles in the lab?

My project consists of preparing a gelatin hydrogel mixture( using a gluteraldehyde crosslinker) by incorporating zinc oxide nano particles. What is a simple procedure that I can make in my...

11 December 2018 6,619 5 View

How to decrease the polarization impact of electrodes in biomedical instrumentation?

In biomedical instrumentation

06 July 2017 1,651 0 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

Is there an ideal incubation time of RGO-modified SPCE before subsequent use, i.e., electrochemical characterization or further modification?

I notice that upon washing and air-drying of my RGO/SPCE surface and characterizing again via DPV, the current response towards ferricyanide probe significantly decreases. My worry is that the...

22 February 2021 5,324 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

What is the best etching method for Mg-Ca alloy?

I have used Picral etchant (4.2 g Picric acid, 10 mL Acetic acid, 70 mL Ethanol, 10 mL distilled water) but it didn't work. Is there any alternative?

21 February 2021 2,558 5 View

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

Charmm/GROMACS Residue 'ZN' not found in residue topology database?

I am trying to do some MD simulations of a protein with zinc ions. I am trying to use a charmm forcefield (I have tried 2017 and 2021) and Gromacs. I get an error when doing pdb2gmx Residue 'ZN'...

12 February 2021 9,367 2 View

What is the difference between Graphene Oxide and Expanded Graphite?

What are the main differences between Graphene Oxide and Expanded graphite, in terms of surface functionalities, conductivity, d-spacing and other features? Is the term expanded graphite...

06 February 2021 9,810 4 View

PEG coated Fe3O4 nanoparticles in aqueous NH3?

Hello, I synthesized PEG coated Fe3O4 nanoparticles by coprecipitation methods and I would like to ask whether they can be dispersed in aqueous NH3 since they have a PEG coating and theoretically...

06 February 2021 5,217 4 View

Xrd result of ZnO thin film shown better crystallinity at low temperature and the crystallinity decreases as the temperature increased. why?

I have synthesized ZnO thin films at four different substrate temperature say, 300, 350, 400 and 450C. and the samples were annealed at 450C for half an hour. the xrd result shown better...

04 February 2021 7,641 4 View

How to apply graphene oxide on an gold electrode?

Dear Fellows, now it is the time to push graphene applications further in terms of easy and low cost production surroundings. Thus I recently dived in the materia and I am facing tons of papers,...

02 February 2021 6,284 2 View