Hello everyone, one of the methods for cold-drawing films made by solvent casting is loosely hung weights. But how is this done, we hang weights on our sample and let it hang? How can we be sure that the sample won't tear?
Thanks in advance
Everything is in the question, I was thinking to do that: Centrifuge at 2000g 20 min the plasma samples to eliminate the lipids aggregates then process different dilution in milliQ (1:2 ; 1:4 ;...
30 July 2019 4,873 0 View
i.e. how long does it take for the amniotic fluid to be fully renewed, taking into account all the different kind of fluxes, and terminal accumulation of modified amniotic fluid as part of the...
17 March 2015 4,775 1 View
Hi, As written in the title: did anybody tested the Quick-gDNA™ MiniPrep from Zymo Research to extract cell free circulating DNA from Plasma/Serum? I'm currently using the circulating DNA kit...
17 December 2014 1,762 1 View
How can I measure the thickness of thin film by Uv-Vis?
06 August 2024 7,809 3 View
Hello, I'm trying to measure the conductivity of semiconductor films but since I don't have a commercial four point probe set up I would like to build one on my own in my lab. I have generators,...
30 July 2024 905 2 View
My final research is about making chitosan/pva hydrogel for wound healing using gelatin as crosslinker. Last month, i made the thin film hydrogel and it turn well. It was okay. Last week, i make...
28 July 2024 2,794 6 View
I'm working on the atmospheric water harvesting, and i synthesized MOF by adding some materials into precursor and changing the conditions. (i followed Hydrothermal method) Actually, if MOF is...
24 July 2024 1,515 0 View
Why methanol and sulphuric acid, used in the analysis of polyhydroxyalkanoates (PHA) methyl esters by GC-MS? Additionally, why do we typically use non-polar solvents in GC-MS?
22 July 2024 1,210 2 View
I know that films and other low-thickness laminated products are produced using biaxial orientation, but is there something similar for sheets with a thickness of around 6 mm? Or are they...
21 July 2024 1,559 1 View
I work with planar interdigitated electrodes (IDEs). The finger width and the spacing between the fingers are 5 micron. The surface of the IDEs is coated by a non-conductive polymer layer...
16 July 2024 5,031 1 View
I am facing a difficulty to prepare the thin film which contains fluorine contained silica monomer, as we know F is highly reactive with low surface energy and it could be the reason of low...
09 July 2024 6,017 3 View
Hi, I need to measure the real-time (or temporal intervals) thickness variation of a transparent material from dry to wet/humid conditions, however, I cannot use the following techniques: -...
08 July 2024 4,799 4 View
I use X-ray diffraction (XRD) techniques to quantify the degree of crystallinity in my samples, referring to the following formula (CrI=Acrystal-Aamph/Atotal ). using deconvolution area methods (...
06 July 2024 6,233 9 View