Colloidal chemistry with patchy silica nanoparticles

We report a new route to synthesize clusters, or so-called colloidal molecules (CMs), which mimic the symmetry of molecular structures made of one central atom. We couple site-specifically functionalized patchy nanoparticles, i.e., valence-endowed colloidal atoms (CAs), with complementary nanosphere...

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Bibliographic Details
Published in:Beilstein journal of nanotechnology 2018, Vol.9 (1), p.2989-2998
Main Authors: Rouet, Pierre-Etienne, Chomette, Cyril, Adumeau, Laurent, Duguet, Etienne, Ravaine, Serge
Format: Article
Language:English
Subjects:
Acids
Atoms & subatomic particles
Chemical Sciences
Chemical synthesis
Colloid chemistry
colloidal molecules
covalent bonding
Emulsion polymerization
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Material chemistry
Nanoparticles
Nanoscience
Nanospheres
Nanotechnology
Organic chemistry
patchy nanoparticles
Scanning electron microscopy
Schweitzer, Albert
Silicon dioxide
valence
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Summary:We report a new route to synthesize clusters, or so-called colloidal molecules (CMs), which mimic the symmetry of molecular structures made of one central atom. We couple site-specifically functionalized patchy nanoparticles, i.e., valence-endowed colloidal atoms (CAs), with complementary nanospheres through amide bonds. By analogy with the Gillespie formalism, we show that AX , AX E and AX E CMs can be obtained from tetravalent sp -like CAs when the relative amount of both building units is varied in a controlled manner. We obtain AX CMs from divalent sp-like CAs. We also show that it is possible to covalently attach two different types of satellites to the same central patchy nanoparticle to create more complex CMs, opening the way to the fabrication of new multifunctional nanostructures with well-controlled shape and composition.
ISSN:2190-4286
2190-4286
DOI:10.3762/bjnano.9.278