title: Nanoparticles selectively immobilized onto large arrays of gold micro and nanostructures through surface chemical functionalizations.
abstract: Latex nanoparticles (100nm and 200nm diameter) were precisely located onto the gold regions of micro and nanopatterned gold/silica substrates through surface chemical functionalizations. The gold patterns were selectively functionalized with alkylthiols bearing biotin or amine headgroups. This selective functionalization allowed the trapping of streptavidin- or carboxy-functionalized latex nanoparticles onto the gold structures with very little non-specific adsorption onto the surrounding silica. Quantitative data of nanoparticle capture on gold and silica, obtained through SEM image analysis, showed a one to two order of magnitude increase on gold with a similar low coverage on silica (non-specific adsorption) thanks to chemical functionalizations. Single nanoparticles were captured at the gap of dimer gold nanostructures.
authors.affiliation: Université de Lyon, Institut des Nanotechnologies de Lyon, site Ecole Centrale de Lyon, CNRS UMR 5270, 36, Avenue Guy de Collongue, 69134 Ecully, France.
authors.forename: Francisco
authors.initials: F
authors.lastname: Palazon
authors.affiliation: Université de Lyon, Institut des Nanotechnologies de Lyon, site Ecole Centrale de Lyon, CNRS UMR 5270, 36, Avenue Guy de Collongue, 69134 Ecully, France.
authors.forename: Pedro
authors.initials: P
authors.lastname: Rojo-Romeo
authors.affiliation: Laboratoire Nanotechnologies & Nanosystèmes (UMI-LN2 3463), Université de Sherbrooke - CNRS - INSA de Lyon - ECL - UJF-CPE Lyon. Université de Sherbrooke, 3000 Boulevard de l'Université, Sherbrooke, Québec J1K 0A5, Canada; Laboratoire Nanotechnologies et Nanosystèmes (UMI-LN2 3463), Université de Sherbrooke - CNRS - INSA de Lyon - ECL - UJF-CPE Lyon LTM/CNRS/RENATECH, 17 rue des martyrs, 38054 Grenoble, France.
authors.forename: Céline
authors.initials: C
authors.lastname: Chevalier
authors.affiliation: Université de Lyon, Institut des Nanotechnologies de Lyon, site Ecole Centrale de Lyon, CNRS UMR 5270, 36, Avenue Guy de Collongue, 69134 Ecully, France.
authors.forename: Thomas
authors.initials: T
authors.lastname: Géhin
authors.affiliation: Université de Lyon, Institut des Nanotechnologies de Lyon, site Ecole Centrale de Lyon, CNRS UMR 5270, 36, Avenue Guy de Collongue, 69134 Ecully, France; Université de Lyon, Institut des Nanotechnologies de Lyon, site Ecole Centrale de Lyon, CNRS UMR 5270, 36, Avenue Guy de Collongue, 69134 Ecully, France.
authors.forename: Ali
authors.initials: A
authors.lastname: Belarouci
authors.affiliation: Université de Lyon, Institut des Nanotechnologies de Lyon, site Ecole Centrale de Lyon, CNRS UMR 5270, 36, Avenue Guy de Collongue, 69134 Ecully, France.
authors.forename: Amandine
authors.initials: A
authors.lastname: Cornillon
authors.affiliation: Université de Lyon, Institut des Nanotechnologies de Lyon, site Ecole Centrale de Lyon, CNRS UMR 5270, 36, Avenue Guy de Collongue, 69134 Ecully, France.
authors.forename: Francesca
authors.initials: F
authors.lastname: Zuttion
authors.affiliation: Université de Lyon, Institut des Nanotechnologies de Lyon, site Ecole Centrale de Lyon, CNRS UMR 5270, 36, Avenue Guy de Collongue, 69134 Ecully, France.
authors.forename: Magali
authors.initials: M
authors.lastname: Phaner-Goutorbe
authors.affiliation: Université de Lyon, Institut des Nanotechnologies de Lyon, site Ecole Centrale de Lyon, CNRS UMR 5270, 36, Avenue Guy de Collongue, 69134 Ecully, France.
authors.forename: Éliane
authors.initials: É
authors.lastname: Souteyrand
authors.affiliation: Université de Lyon, Institut des Nanotechnologies de Lyon, site Ecole Centrale de Lyon, CNRS UMR 5270, 36, Avenue Guy de Collongue, 69134 Ecully, France.
authors.forename: Yann
authors.initials: Y
authors.lastname: Chevolot
authors.affiliation: Université de Lyon, Institut des Nanotechnologies de Lyon, site Ecole Centrale de Lyon, CNRS UMR 5270, 36, Avenue Guy de Collongue, 69134 Ecully, France. Electronic address: jean-pierre.cloarec@ec-lyon.fr.
authors.forename: Jean-Pierre
authors.initials: JP
authors.lastname: Cloarec
keywords: Colloid; Nanoantenna; Self-assembly; Surface functionalization