What is the best and fastest method to make a water soluble PVA insoluble in water?

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"The following block is not supported in Phasor simulation?

I am designing a control system for Hybrid renewable energy systems using Matlab/simulink/simscape, but currently having a problem. Whenever I run the simulation, I get the error shown below. "The...

12 January 2021 2,142 5 View

Method of dtermining cellulose in plant litter sample?

determination of cellulose in plant litter sample

08 November 2017 4,718 3 View

What can my annealing temperature be if both my forward & reverse primer have the same Tm according to synthesis report?

What can my annealing temperature be if both my forward & reverse primer have the same Tm according to synthesis report, E.g. Tm=60.4 for both?

25 February 2016 9,454 2 View

ICP-AES operation standards

What type of material are sample vials and glasswares used in ICP-AES made of? What type of solution is used to adjust CID part in ICP-AES operation?

09 July 2012 3,726 7 View

What is the density for pva electrospining?

I'm Juan Carlos, a high school student who is working with electropinning, I made an electropinning machine with a 21g needle and a 30kv high voltage source and the distance between my needle is...

28 February 2021 298 3 View

No title

I am trying to find how to know the density needed for a pva electrospinning in a 0.6mm neddle, the electrospinning will be from top to bottom and the problem I really have is the solution because...

25 February 2021 2,615 3 View

Dear Colleagues, I am looking for a way to dop of electrospining nanofibers on the HEPA filter.Someone can guide me?

Electrospining method is important for production of nanofiber .If doped with nanoparticles ,can be used for remove of contaminant such as VOC , but don't have mechanical strengh . For finding a...

24 January 2021 7,290 3 View

What is the current situation in the development of nanofibers laminated and biodegradable material based facemasks?

I want to know the progress in the development of polymer laminated, biodegradable material based facemasks.

18 January 2021 9,205 3 View

What could be the appropriate load and loading rate to carried out nanoindentation for testing microhardness of nanofiber?

Dear Reader, Recently, I have prepared a polymeric nanofiber using PVA polymer doped with some nanoparticles and I want to find out its microhardness. So, I was planning to do...

09 January 2021 4,452 7 View

Why the bandgap of CH3NH3PbCl3 films are different for spin-coating method and electrospinning method?

The observed bandgaps are 3.8 eV and 3.4 eV for spin-coated and electrospun films, respectively. What are the possible reasons?

08 January 2021 5,646 6 View

How can I take an electrical conductivity test from a nanofibrous scaffold?

I have a nanofiber scaffold for tissue engineering. When I did the electrical conductivity test, the ohmmeter reports a wide range of values (from 300 kOhm to 20 MOhm). I placed the scaffold...

06 January 2021 2,232 1 View

DSC test- Glass transition temperature of the electrospun PA66 nanofibers?

Hello Everyone, I did several DSC tests on the electrospun PA66 nanofibers to obtain the glass transition temperature. According to the material datasheet, the Tg point of PA66, as cast, is around...

13 December 2020 1,506 2 View

How do I avoid sucking up electrospun scaffolds during cell culture?

Hi, I'm a PhD student working to develop electoconductive, electrospun scaffolds for cardiac tissue engineering applications. I have been seeding cells onto these scaffolds but having major...

04 December 2020 6,672 3 View

Does crystallinity degree, (and crystalline phase) of a polymer affect its surface energy and adhesion?

I have several PLLA electrospun nanofibers with different crystallinity degrees and also different crystalline phases and I am measuring the adhesion force by AFM-based techniques. I wonder if we...

28 November 2020 3,269 5 View

Mina Karimi-Avargani

Dear Racheal Afolabi,

Water + 0.2 M NaNO3 + 0.01 M NaH2PO4 at pH=7 at 25˚C
Water + 0.25 M NaNO3 + 0.01 M NaH2PO4 at pH=7 at 25˚C

Vishal Gavande

Agree with Mina Karimi-Avargani

Abdelkader BOUAZIZ

Dear all, the following free patents may be of great help. My Regards

https://patents.google.com/patent/US3033842A/en

https://patents.google.com/patent/US5106876