Hi all, I have synthesized polyethyleneimine coated Fe3O4 nanoparticles, before drying, the nanoparticles showed positive zeta potential, but after drying in the oven at 40 C , the measured zeta potential becomes negative. Why does oven drying process change the zeta potential of nanoparticles? What do you recommend for drying the particles?
Thank you in advance
@omar Gonzales-Ortega in this way how can I use it in my electrospinning solution And perform Fesem and the other tests for synthesized nanoparticles?
Do not know anything about electrospinning, the nanoparticles must be kept always as a suspension. You can dry the system if you want, all I am saying is that the nanosuspension exists due to its constituents, one being the dispersing agent.
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