3 ms·
Ok so it's a sponge soaked in konjac and then dried? Damn, that is simple. Could easily make this yourself. I don't even see how this is patentable... > renewa
by fallat 4y ago
Ok so it's a sponge soaked in konjac and then dried? Damn, that is simple. Could easily make this yourself. I don't even see how this is patentable...
> renewable cellulose and a common kitchen ingredient, konjac gum, as a main hydrophilic (attracted to water) skeleton
(artificial sponges are made of cellulose - I learned this just last year when washing my dishes and thinking... wtf is this made of?)
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Seems then you can:
0. Go to the dollar store
1. Buy a thin sponge
2. Buy konjac gum
3. Buy a tray
4. Place the thin sponge in the tray, mix the konjac gum with water, and pour it into the tray, and place it into your freezer, waiting for the water to evaporate...?
5. Place it now somewhere in a humid place to pull the water out of the air
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Industrial version of this is probably a ton of thin wafers side-by-side in a cube-like fashion, so they can easily come off an assembly line
- bradrn 4y agoIt doesn’t look quite that simple. The paper describes the procedure as follows: > In a typical fabrication, LiCl powder (0.32–0.82 g) is added into 10 mL HPC solution (0–2.0 wt%) forming solution A. The pH of solution A can be tuned by NaOH or HCl solution. 0.44 g KGM powder is added into solution A and quickly cast into the petri dish after vortex. The gelation takes place within 2 min, and sit in room temperature for 15 min. Then, the film is placed in the fridge (−4 °C) for 3 h followed by 15 min freeze in liquid nitrogen. Last, the gel film is ready to use after 12 h freeze-drying. [https://doi.org/10.1038/s41467-022-30505-2 https://doi.org/10.1038/s41467-022-30505-2]
- natch 4y agoDude you don’t have liquid nitrogen in your fridge? Such common kitchen ingredients. /s