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- Title
LIPOSOMES CONTAINING UNDOPED AND Au<sup>+</sup> / Ag<sup>+</sup> DOPED TITANIUM DIOXIDE NANOPARTICLES.
- Authors
Hădărugă, D. I.; Hădărugă, N. G.; Lăzău, C.; Raţiu, C.; Crăciun, C.; Grozescu, I.
- Abstract
The paper presents the obtaining and characterization of liposomes containing undoped and metallic ions (Au+ and Ag+) doped titanium dioxide nanoparticles by using the ultrasonication method. Commercial "empty" liposomes and undoped and doped (with Au+ and Ag+ ions) titanium dioxide (obtained by sol-gel method) were used for obtaining the liposome nanocapsules and these were analyzed by scanning electron microscopy (SEM), transmission electron microscopy (TEM), and energy-dispersive X-ray spectroscopy (EDS). Generally, the liposomes are unilamellar and have a higher uniformity, being formed by separated capsules with diameters up to 300 nm, as is revealed by SEM and TEM analyses. These liposomes contain titanium dioxide nanoparticles as is demonstrated by EDS analysis, but the concentration of metallic ions cannot be evaluated. The approximate concentration (on the basis of EDS analysis) of titanium dioxide in the liposomes was 7% and 1-2% TiO2 (undoped or doped, respectively).
- Subjects
LIPOSOMES; TITANIUM dioxide; NANOPARTICLES; SCANNING electron microscopy; TRANSMISSION electron microscopy; X-ray spectroscopy
- Publication
Digest Journal of Nanomaterials & Biostructures (DJNB), 2010, Vol 5, Issue 4, p919
- ISSN
1842-3582
- Publication type
Article