resumo
Gold/soap nanostructures were prepared by a green methodology using saponified household sunflower oil, as reducing and organic dispersing agent of auric acid. The incorporation of hydrophobic molecules on the novel water-soluble gold nanoparticles was followed by fluorescence lifetime imaging microscopy, using as model hydrophobic compound 5,10,15-tris-(pentafluorophenyl) corrolatogallium(III) (pyridine) (GaPFC), a highly fluorescent corrole. The results showed the hydrophobic GaPFC located between the organic bilayer surrounding several Au nanoparticles, which in turn were coated with fatty acids salts anchored by the double bond at the gold's surface.
palavras-chave
NANOPARTICLES; NANORODS; CHEMISTRY; COLLOIDS; SURFACE; CELLS; SERS; OIL
categoria
Chemistry; Science & Technology - Other Topics; Materials Science
autores
Pereira, AS; Barata, JFB; Serra, VIRCV; Pereira, S; Trindade, T
nossos autores
Angela Sofia dos Santos Pereira
Bolseiro de pós-Doutoramento
Joana Filipa Brites Barata
Bolseiro de pós-Doutoramento
Sérgio Manuel de Sousa Pereira
Investigador principal
Tito Trindade
Professor Catedráticoagradecimentos
We would like to thank Fundacao para a Ciencia e a Tecnologia (FCT, Portugal), the European Union, QREN, FEDER, COMPETE, for funding the QOPNA, CICECO, and CQE research units (project PEst-C/QUI/UI0062/2013, Pest-C/CTM/LA0011/2013, FCOMP-01-0124-FEDER-037296, and Pest-OE/QUI/UI0100/2013/2014). A. S. Pereira, J. F. B. Barata, and V. I. R. C. V. Serra also thank FCT-MCTES for their grant SFRH/BPD/44398/2008, SFRH/BPD/63237/2009, and SFRH/BPD/74270/2010, respectively.