How can I synthesis a self-healing hydrogel with poly vinyl alcohol(PVA) and tannic acid(TA)?

can I treat waste water containing solvents and alcohol with electrocoagulation?

there are solvents and alcohol in the waste water of a factory that produces disinfectants. Increasing this waste water requires very serious operations. Can I treat this waste water with...

27 February 2021 2,609 3 View

What is the best way to isolate Hydrolysable tannins on Sephadex column?

I am currently preparing to isolate polyphenolics (Hydrolysable tannins) from aqueous extract of a plant. I want to set up a small sephadex column to guide the major isolation on a laerge...

18 February 2021 1,455 3 View

How do you prepare a porous crosslinked Polyvinyl alcohol and Glutaraldehyde membrane or film?

I am trying to prepare a Polyvinyl alcohol membrane for carbondioxide adsorption

08 February 2021 7,493 3 View

Can tannins that are dissolved in water interact with silicone oil?

Hello everyone, Does anybody know if phenolic plant extracts such as tannins dissolved in water can interact with silicone oil? (although silicone oil and water are immiscible).

03 February 2021 5,656 2 View

Can I polymerize NIPPAm with PEGmethacrylate or only with PEGacrylate?

I want to perform the synthesis of a hydrogel and I want to know if I can polymerize NIPPAm with PEGmethacrylate or only with PEGacrylate?

02 February 2021 2,106 6 View

Is there a faster way of removing and collecting the carbon nanotubes on the surface of the stainless steel 304 plates other than sonification?

The usual way of properly removing and collecting carbon nanotubes (CNT) is to sonicate the stainless steel plates coated with CNT under isopropyl alcohol (IPA) solution, remove the plates after...

28 January 2021 9,455 1 View

How can solve/disperse silicon nanoparticles in water?

I want to add silicon nanoparticles to my hydrogel, but when I sonicated these particles with water to disperse them in water, they agglomerated on the water's surface. How can I disperse them in...

26 January 2021 213 4 View

Anyone know how to dilute strong hydrogel structure?

I am working on PVA-GMA hydrogel that is a really strong polymeric structure like rubber. Because I am in the middle of analysis, it is difficult to dissolve the gel using a common solvent. I...

20 January 2021 3,501 2 View

How can I stain 3d printed cells in hydrogel without damaging the gel?

I tried staining my cells in a gel using standard protocols with 4PF% for fixation and triton-X or saponin for permeabilization but the gel always gets damaged throughout the steps, and at the end...

17 January 2021 4,170 1 View

Why Selenium nanoparticles synthesized by PEG 200 could not be scaled up ?

I could not synthesize Selenium nanoparticles by PEG 200 at up-scale ( more than 100 ml) as it got aggregated while at small amounts it works fine , I work with 850 PPM using selenium powder in...

08 January 2021 10,049 1 View

Abdelkader BOUAZIZ

Dear Erfan Behjat, please check this simple google search results, you will see the diverse possibilities on the preparation routes. My Regards

https://tinyurl.com/5n9bcdcx

Erfan Behjat

Dear Abdelkader Bouaziz, thanks for your answer. I have searched these protocols before, and none of them are used to synthesize self-healing PVA/TA hydrogels. I found two papers that have worked on PVA/TA self-healing hydrogels, but it seems that their protocol is not complete.

So, I am searching for a true and complete protocol for synthesizing this hydrogel.

Luanna Moura

If you find a protocol, but it is not complete, maybe it is a patent already. You can look on EPO website, or use google patent to check it. You have to try several keywords to find patents, it is a bit exhaustive. Another idea is to reach the authors and ask for clarification (Also ask if they have a patent). Sometimes, it is the fastest way. Hope my suggestions are helpful, good luck. Have a nice day. Cheers