For those that know my old account, I used to do a lot with biostimulants, particularly fulvic acid. Fulvic acid was not a great chelator and would often form biofilm with silica. My research has shifted to chitosan as a chelator and elicitor of induced systemic response. I want to create a chelated silica from chitosan oligosaccharide.
For the life of me, I swear I saw a paper on it, but I can’t find it. They used sodium silicate treated with acid to create silica nanoparticles. It was decanted, dried and milled. It was then combined in some way with chitosan oligosaccharide to create a chi-sil. It would provide the best abiotic stress reducing biostimulant possible. I am asking for a spoon here. Can anyone help me find that paper? Does anyone know any chitosan or nano silica formulation?
I know absolutely nothing about this topic, but if you provide as many details as you can remember, I may be able to find it. The more details, the better. You mentioned what you want to do with this material, but can you remember what the publisher was trying to do with this material?
Based on the little bit of info you provided so far:
It was for ag purposes, literally silica chelated by chitosan that was water soluble. It was a “one pot” method that didn’t have any exotic chemicals other than pH adjustment. I can’t remember if the combination of both substances was chemical or mechanical. That’s why this is stumping me so hard.
NanoChiSil fertilizer material consists of nanochitosan and nanosilika. As many as 10 grams of chitosan powder material is weighed and dissolved into the 500 ml of 1% acetic acid solution and distirrer for 30 minutes, then filtered to separate the solution of chitosan with dirty’s. Nano chitosan synthesized by using 50 ml of diluted liquid chitosan again by adding 200 ml of aquades while stirring constantly using a magnetic stirrer.
Chitosan solution is then added to each 20 ml of NaOH solution 0.02% drops to drops while continuing to stir with a magnetic stirrer to chitosan solution changes color to white. Then to know this nanochitosan particle size TEM analysis is done. Creation of materials nanoChiSil (chitosan nano silica) is done by adding as many as 30 ml colloidal nano chitosan into nano-silica colloidal 70 ml (99 Nanosil) while stirring using a magnetic stirrer until homogeneous. Solution of chitosan nano silica generated then analyzed particel’s shape and size by using the TEM while their subjects were measured with EDX. The results of the analysis showed that the material already produced nanoChiSil size nanometer.
To 5 gallons of water, I added 946mg of chitosan oligosaccharide (50 ppm) and 12.5ml of 7.8% potassium silicate (~50 ppm silica). There is no cloudiness or fall out.
