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Angewandte Chemie International Edition, Volume 52, Issue 3, pages 968–972, January 14, 2013.
Offer Zeiri, Dr. Yifeng Wang, Alevtina Neyman, Prof. Francesco Stellacci,Prof. Ira A. Weinstock
Department of Chemistry and the Ilse Katz Institute for Nanoscale Sciences and Technology, Ben Gurion University of the Negev, Beer Sheva, 84105 (Israel), and
Institute of Materials, École Polytechnique Fédérale de Lausanne (EPFL), Lausanne (Switzerland) and
Department of Materials Science and Engineering, Massachusetts Institute of Technology, Cambridge, MA 02139 (USA).
Abstract
Unprecedented insertions of cationic alkanethiols, HS(CH2)11N(CH3)3+ (see scheme; cyan-colored rods), between polyoxometalate protecting ligands, {Alpha}-AlW11O399−(blue circles), and the surfaces of gold nanoparticles, give “zwitterionic” patchy nanoparticles (PNs). Their shell structures and assembly properties vary with particle size during rational in situ modifications that lead to three-component core–shell aggregates never observed before in PNs.
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