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“Remote” Fabrication via Three‐Dimensional Reaction‐Diffusion: Making Complex Core‐and‐Shell Particles and Assembling Them into Open‐Lattice Crystals
Author(s) -
Wesson Paul J.,
Soh Siowling,
Klajn Rafal,
Bishop Kyle J. M.,
Gray Timothy P.,
Grzybowski Bartosz A.
Publication year - 2009
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/adma.200802964
Subject(s) - materials science , mesoscopic physics , fabrication , nanoparticle , galvanic cell , nanocrystal , lattice (music) , polymer , nanotechnology , core (optical fiber) , colloid , metal , chemical engineering , chemical physics , composite material , condensed matter physics , metallurgy , medicine , physics , alternative medicine , pathology , engineering , acoustics
Reaction‐diffusion (RD) processes initiated from the surfaces of mesoscopic particles can fabricate complex core‐and‐shell structures. The propagation of a sharp RD front selectively removes metal colloids or nanoparticles from the supporting gel or polymer matrix. Once fabricated, the core structures can be processed “remotely” via galvanic replacement reactions, and the composite particles can be assembled into open‐lattice crystals.