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Orthogonal Self‐Assembly on Colloidal Gold‐Platinum Nanorods
Author(s) -
Martin Benjamin R.,
Dermody Daniel J.,
Reiss Brian D.,
Fang Mingming,
Lyon L. Andrew,
Natan Michael J.,
Mallouk Thomas E.
Publication year - 1999
Publication title -
advanced materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 10.707
H-Index - 527
eISSN - 1521-4095
pISSN - 0935-9648
DOI - 10.1002/(sici)1521-4095(199908)11:12<1021::aid-adma1021>3.0.co;2-s
Subject(s) - materials science , nanotechnology , nanorod , nanometre , micrometer , rod , self assembly , platinum , colloid , porosity , particle (ecology) , membrane , surface modification , colloidal crystal , electroplating , chemical engineering , optics , composite material , organic chemistry , catalysis , layer (electronics) , alternative medicine , chemistry , oceanography , pathology , engineering , genetics , medicine , physics , geology , biology
The preparation of micrometer to nanometer‐sized building blocks that can be selectively derivatized is reported here. Segmented multi‐metal rods of controllable length (see Cover) were fabricated by electroplating in porous template membranes. Additionally it is shown how the surface chemistry of different parts within a single particle can be controlled by means of orthogonal self‐assembly. Exploiting of the different reactivities of Pt and Au towards thiols and isocyanides leads to the observation of fluorescence from only the Au segments of the rods.