Electrochemical Preparation and Delivery of Melanin- iron Covered Gold Nanoparticles

DORIS GRUMELLI; CAROLINA VERICAT; GUILLERMO BENÍTEZ; JOSÉ M. RAMALLO-LÓPEZ; LISANDRO GIOVANETTI; FÉLIX REQUEJO; M. SERGIO MORENO; ALEJANDRO GONZÁLES ORIVE; ALBERTO HERNÁNDEZ CREUS; ROBERTO C. SALVAREZZA

JOURNAL OF CHEMICAL PHYSICS

American Institute of Physics

Lugar: Melville, NY 11747-4502 USA; Año: 2008

0021-9606

<!-- /* Font Definitions */ @font-face {font-family:"MS Mincho"; panose-1:2 2 6 9 4 2 5 8 3 4; mso-font-alt:"ＭＳ 明朝"; mso-font-charset:128; mso-generic-font-family:roman; mso-font-format:other; mso-font-pitch:fixed; mso-font-signature:1 134676480 16 0 131072 0;} @font-face {font-family:"@MS Mincho"; panose-1:0 0 0 0 0 0 0 0 0 0; mso-font-charset:128; mso-generic-font-family:roman; mso-font-format:other; mso-font-pitch:fixed; mso-font-signature:1 134676480 16 0 131072 0;} /* Style Definitions */ p.MsoNormal, li.MsoNormal, div.MsoNormal {mso-style-parent:""; margin:0cm; margin-bottom:.0001pt; mso-pagination:widow-orphan; font-size:10.0pt; mso-bidi-font-size:12.0pt; font-family:"Times New Roman"; mso-fareast-font-family:"MS Mincho"; mso-ansi-language:DE; mso-fareast-language:JA;} @page Section1 {size:612.0pt 792.0pt; margin:70.85pt 3.0cm 70.85pt 3.0cm; mso-header-margin:36.0pt; mso-footer-margin:36.0pt; mso-paper-source:0;} div.Section1 {page:Section1;} --> New strategy to modify metal nanoparticle in three steps: i) Adsorption of thiol-capped metal nanoparticles on graphite, ii) electrochemical modification, iii) potential-induced delivery of the modified nanoparticles to the electrolyte. Melanin-iron modified thiol-capped gold nanoparticles, an attractive system combining magnetic properties and biocompatibility, has been used as a model system to explore this strategy