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Electrochemical Preparation and Delivery of Melanin–Iron Covered Gold Nanoparticles
Author(s) -
Grumelli Doris,
Vericat Carolina,
Benítez Guillermo,
RamalloLópez José M.,
Giovanetti Lisandro,
Requejo Félix,
Moreno M. Sergio,
Orive Alejandro González,
Creus Alberto Hernández,
Salvarezza Roberto C.
Publication year - 2009
Publication title -
chemphyschem
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.016
H-Index - 140
eISSN - 1439-7641
pISSN - 1439-4235
DOI - 10.1002/cphc.200800726
Subject(s) - biocompatibility , nanoparticle , biopolymer , electrochemistry , nanotechnology , materials science , adsorption , magnetic nanoparticles , chemical engineering , colloidal gold , surface modification , chemistry , polymer , electrode , organic chemistry , metallurgy , engineering
Attractive combination: Biopolymer‐modified nanoparticles which combine magnetic properties with biocompatibility are prepared and delivered following a three‐step strategy (see figure): i) Adsorption of thiol‐capped metal nanoparticles on graphite, ii) electrochemical modification, iii) potential‐induced delivery of the modified nanoparticles to the electrolyte.Thiol‐capped gold nanoparticles modified with iron‐melanin are attractive because they combine magnetic properties and biocompatibility. The biopolymer modified nanoparticles are prepared and delivered following a three step strategy: i) adsorption of thiol‐capped metal nanoparticles on graphite, ii) electrochemical deposition of melanin‐iron, iii) potential‐induced delivery of the modified nanoparticles to the electrolyte.