I am trying to find the appropriate solvent to dissolve these nanoparticles for the antimicrobial test. And how will I do an antimicrobial test if these nanoparticles do not dissolve?
Ashfaq Aziz
Dissolution refers to the distribution of a substance in the form of molecules or ions in a solvent. There is no point in synthesizing or buying nanoparticles and then dissolving them. The nanoparticles that you listed in the dispersed system “work” against bacteria. Nanoparticles are used as the dispersed phase, and water is used as the dispersion medium. Such terms should be used to characterize disperse systems.
Dear Ashfaq Aziz ,
Even though this might not be too useful, let me tell you that I used to dissolve SiO2 either with fluorhydric acid, or a saturated solution of KOH in isopropanol.
Hope it helps!
Dear Agustin Forchetti Casarino ,
Thank you for your valuable suggestion. Can you please tell me the concentration of saturated KOH in isopropanol? and if I use ethanol instead of isopropanol will it work? Lastly, will it be cost-beneficial if I use fluorhydric acid?
Dear Ashfaq Aziz ,
Regarding costs, it is cheaper to use KOH + isopropanol. As far as I am concerned, the solution is normally prepared with isopropanol rather than ethanol. I never tried using ethanol, but who knows, it might work. You could give it a try. Regarding concentration, you can probably look for those on the web, but normally in our lab, we just put lots of KOH in a plastic box full of isopropanol, until solids remain undissolved. It is a solution in which the concentrations are not that important, as long as the KOH is not very diluted.
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