I want to prepare a unidirectional parallel porous structure with ionotropic gelation of sodium alginate. I tried it with sodium alginate solution and CaCl2 or CuSO4 electrolytes as many articles mentioned.
but unfortunately, the products were loose gels or they were not gel as i could not detach them from the mold to continue the process.
In other experiments, I add sodium alginate solution to the electrolyte solution or add the electrolyte to sodium alginate solution in various manners but the gelation did not occur at all.
I guess the G/M ratio and G distribution of alginate affect my work. but I don't know if it is probable that my alginates don't have any G block?!!
My alginate is food industrial grade.
Has storage conditions affected monomer distribution?
What is your advice about this?
thank you very much
You can read: Ionotropic gelation - A novel method to prepare chitosan nanoparticles
Article Ionotropic gelation - A novel method to prepare chitosan nanoparticles
also: Ionotropic gelation method in the synthesis of nano/microparticles for biomedical purposes
Article Ionotropic gelation method in the synthesis of nano/micropar...
I think you can find the solution to your problem from this reference
Link: https://epub.uni-regensburg.de/16238/1/Kiran_Pawar_Thesis.pdf
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