Does anyone know about the difference between solid and liquid EXAFS data?

10 November 2017 5,366 1 View

What kind of test is require for biomedical applications.?

What kind of test can be done to understand how different viruses and bacteria act on the surface of different metallic surfaces? I need some way to develop a coating with biomedical applications...

06 July 2015 8,725 0 View

Does anybody know about how I can find the percentage of each phase in poly-crystal material?

Dear All. I have several samples that the percentage of each composition are difference but all of them has two different phases. i want to specified the percentages of each phase. does any one...

04 May 2015 5,866 5 View

How can I fabricate TiN and TaN by sputtering Ti and Ta with N2 gas?

04 May 2015 1,141 10 View

Does anyone know a alloy or material with lower diffusion and high melting point?

Hi all, Does anyone know which metal or which alloy has a lower diffusion coefficient with a high melting point (at least 2000'C)? Or which material has less reaction with Fe, Cu and Al? Thanks!Parsa

03 April 2015 1,439 14 View

What is the best way to grow SiO2 on Stainless Steel substrate?

Dear all, I want to grow SiO2 on Stainless steel thin film by sputtering. After annealing, there is diffusion of the substrate to SiO2. I'd would like to ask if anyone has experience with this...

02 March 2015 5,119 5 View

Is anyone familiar with using Argon gas and Fermi gas for annealing of metals?

Dear All, I have a sample, the composition is a mixture of Al-Cu-Fe. I need to use Argon gas or Fermi gas during annealing to avoid sublimation and oxidation. Which one is better? Also I should...

09 October 2014 6,274 8 View

What methods can I use to check the shape of crystals?

Dear All I have analyzed the quasicrystal i have prepared by xrd, but i'm not sure if the crystallization is correct. I know that we can check it via TEM or another method. May I ask about the...

08 September 2014 456 9 View

What are the rules of measuring mass elements in composition?

07 August 2014 9,709 17 View

What is the relation between the number of tilling and degree of packing in quasicrystal?

In quasicrystal, a different set of tilling can form the quasicrystal. However, most of the mathematical theory is trying to explain the quasicrystal tilling from one starting point and not from a...

01 January 1970 6,724 1 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

What's the best way to measure growth rates in House sparrow chicks from day 2 to day 10?

What's the best way to measure growth rates in House sparrow chicks from day 2 to day 10? Since, the growth curve from day 2 to 10 won't be like the "Logistic curve" it might not follow logistic...

03 March 2021 1,401 3 View

Why Austenite grains in steel show much more twinning than ferrite grains?

It is oftentimes said to be a distinctive metallographic trait that differentiates a fully austenitic and a fully felly ferritic steel without etching that might distinguish between two. Why...

02 March 2021 728 2 View

What are anisotropic electrical and optical properties of a semiconductor due to?

In some materials, properties such as band gap, thermal conductivity differ along different crystallographic axes. What are the basics?

01 March 2021 1,923 3 View

What thickness need for ITO to use as conductive layer?

I want to do RF sputtering of ITO on glass substrate using magnetron sputtering. what thickness do i need to make it good conductive layer to use it for PSC. Moreover, whats about thickness of...

01 March 2021 395 3 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

What could be reason for getting such type of graph for complex impedance in case of polymer blend films?

Its effect appears in real part of ac conductivity also. Can anyone suggest any reason behind it?

26 February 2021 3,487 3 View

Does RNAiMAX transfection reagent work in serum free medium?

I diluted siRNA and RNAiMAX in opti-MEM and added to the cells which they were in the growth medium. Is it a right way? or should I culture cells in the opti-MEM medium for a while and not in...

26 February 2021 10,041 3 View

How to replicate the well conditions of a crystal hit with 20%(w/v) isopropanol?

I had a crystal hit in a well with 0.1M HEPEs pH 7.5, 10%(w/v) PEG 4000, and 20%(w/v) isopropanol. Why is isopropanol in w/v here if it's just solvent? How do I recreate this well condition?

25 February 2021 9,761 1 View

How do I transfect a large plasmid into PC12 cells with nerve growth factor (NGF) receptor?

I have a large 16 kb plasmid, which I need to transfect into PC12 cells. Lipofectamin 2000 didn't work and with GFP alone the transfection rate is very low. I also tried the neon invitrogen...

25 February 2021 6,635 5 View