Electrochemical preparation and delivery of melanin-iron covered gold nanoparticles.
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.
Grumelli
Doris
D
Instituto de Investigaciones Fisicoquímicas, Teóricas y Aplicadas, Sucursal 4 Casilla de Correo 16 (1900), Universidad Nacional de La Plata- CONICET, Argentina.
Vericat
Carolina
C
Benítez
Guillermo
G
Ramallo-López
José M
JM
Giovanetti
Lisandro
L
Requejo
Félix
F
Moreno
M Sergio
MS
Orive
Alejandro González
AG
Creus
Alberto Hernández
AH
Salvarezza
Roberto C
RC
D000327:Adsorption; D015374:Biosensing Techniques; D004563:Electrochemistry / Q000379:methods; D006046:Gold / Q000737:chemistry*; D007501:Iron / Q000737:chemistry*; D008280:Magnetics; D008543:Melanins / Q000737:chemistry*; D053768:Metal Nanoparticles / Q000737:chemistry* / Q000648:ultrastructure; D046529:Microscopy, Electron, Transmission; D010316:Particle Size; D013052:Spectrometry, X-Ray Emission; D013438:Sulfhydryl Compounds / Q000737:chemistry; D013499:Surface Properties
D008543:Melanins; D013438:Sulfhydryl Compounds; D006046:Gold; D007501:Iron