A simple method to prepare solid nanoparticles of water-soluble salts using water-in-oil microemulsions |
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| Authors: | V. Marcianò A. Minore V. Turco Liveri |
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| Affiliation: | (1) Dipartimento di Scienze Chirurgiche ed Anatomiche Università di Palermo Policlinico Universitario “P. Giaccone” I-90128 Palermo, Italy, IT;(2) Dipartimento di Chimica Fisica Università of Palermo Viale delle Scienze Parco D'Orleans II I-90128 Palermo, Italy e-mail: turco@mbox.unipa.it, IT |
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| Abstract: | A new and simple method to prepare solid nanoparticles of water-soluble salts using water-in-oil microemulsions is described. In particular, starting from water/sodium bis(2-ethylhexyl)sulfosuccinate/n-heptane microemulsions carrying inside the aqueous core of the reversed micelles some water-soluble salts [CaCl2, Na2HPO4, Cu(NO3)2], after evaporation of the volatile components (water and apolar organic solvent), the resulting inorganic salt/surfactant composites were found to be totally dispersible in pure n-heptane. The presence of nanoparticles in these resuspended composites was ascertained by transmission electron microscopy observation of samples obtained by gentle evaporation of the organic solvent. Received: 8 July 1999/Accepted in revised form: 5 October 1999 |
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| Keywords: | Water-soluble inorganic salts Nanoparticles Water-in-oil microemulsions |
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