Measuring thickness of thin layers from QCM

how can you measure thickness of deposited films from QCM data?

05 June 2017 6,280 3 View

NMR peaks of PSS in D20?

Does anyone have any reference paper for nmr spectra of PSS in water? Thanks in advance.

02 March 2017 8,688 3 View

Problems with synthesizing PLL-OEG-Maleimide?

I am trying to synthesize PLL with OEG (30%)and Maleimide(20%) but for some unknown reasons I am not able to. Once I did manage to get the product but the obtained product had such low amount of...

01 February 2017 671 3 View

About semiconductor equation derivations

I want to derive the Poisson equation in respect to OFET so I need some suggestions for books where I can find the basic derivation of these semiconductor related equations. Any suggestions?

11 December 2016 5,350 2 View

Why the membrane of the silicon nitride nozzles are being cracked?

I have been working with nozzles made from silicon nitride wafers for biomedical applications. Recently i am facing a problem, after the substance is being sprayed from the nozzle, its sticking to...

08 September 2016 1,593 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

Sample dilution for quantitative analysis using ELISA?

If the detection range is in ng/ml but the reference range is in ug/ml for a molecule or protein in serum or plasma .how to dilute and what is the initial volume to be taken for quantitative analysis

02 March 2021 7,670 3 View

Which is the most efficient etching solution for nickel based alloys?

Which solution reveals the microstructure and features of nickel-based alloys?

02 March 2021 2,221 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

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 condition required for coating of Fe3O4@SiO2 by using APTES?

I tried coating Fe3O4@ SiO2 by using APTES in 5% water-ethanol but it is not coated. Kindly suggest a solution for it. Thanks

24 February 2021 5,992 4 View

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

24 February 2021 2,362 5 View

How can I selectively dry etch Ti on a polymer substrate?

24 February 2021 5,378 1 View

IF troubleshooting: looking at an intracellular protein that localizes to the cell's and how to reduce increase in signal due to cell ruffles?

I am currently trying to stain for PI3KBeta in MDA-MB-231 cells. My current issue is that 1) beta stains all over the cell and 2) there is an increase in signal at the edge of the cell and this...

24 February 2021 8,582 1 View

How to delaminate copper in water-based anodes?

Hello everyone, I'm looking for a way to delaminate copper current collector of water-based anodes in Li-ion batteries without damaging the graphite film. I tried different materials such as HNO3...

24 February 2021 3,785 3 View