Abstract
Self-assembly of inorganic nanoparticles has been studied extensively for particles having different sizes and compositions. However, relatively little attention has been devoted to how the shape and surface chemistry of magnetic nanoparticles affects their self-assembly properties. Here, we undertook a combined experiment-theory study aimed at better understanding of the self-assembly of cubic magnetite (Fe3O4) particles. We demonstrated that, depending on the experimental parameters, such as the direction of the magnetic field and nanoparticle density, a variety of superstructures can be obtained, including one-dimensional filaments and helices, as well as C-shaped assemblies described here for the first time. Furthermore, we functionalized the surfaces of the magnetic nanocubes with light-sensitive ligands. Using these modified nanoparticles, we were able to achieve orthogonal control of self-assembly using a magnetic field and light.
| Original language | English |
|---|---|
| Pages (from-to) | 403-421 |
| Number of pages | 19 |
| Journal | Faraday Discussions |
| Volume | 181 |
| DOIs | |
| Publication status | Published - 2015 |
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ASJC Scopus subject areas
- Physical and Theoretical Chemistry
Cite this
Magnetic field-induced self-assembly of iron oxide nanocubes. / Singh, Gurvinder; Chan, Henry; Udayabhaskararao, T.; Gelman, Elijah; Peddis, Davide; Baskin, Artem; Leitus, Gregory; Král, Petr; Klajn, Rafal.
In: Faraday Discussions, Vol. 181, 2015, p. 403-421.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Magnetic field-induced self-assembly of iron oxide nanocubes
AU - Singh, Gurvinder
AU - Chan, Henry
AU - Udayabhaskararao, T.
AU - Gelman, Elijah
AU - Peddis, Davide
AU - Baskin, Artem
AU - Leitus, Gregory
AU - Král, Petr
AU - Klajn, Rafal
PY - 2015
Y1 - 2015
N2 - Self-assembly of inorganic nanoparticles has been studied extensively for particles having different sizes and compositions. However, relatively little attention has been devoted to how the shape and surface chemistry of magnetic nanoparticles affects their self-assembly properties. Here, we undertook a combined experiment-theory study aimed at better understanding of the self-assembly of cubic magnetite (Fe3O4) particles. We demonstrated that, depending on the experimental parameters, such as the direction of the magnetic field and nanoparticle density, a variety of superstructures can be obtained, including one-dimensional filaments and helices, as well as C-shaped assemblies described here for the first time. Furthermore, we functionalized the surfaces of the magnetic nanocubes with light-sensitive ligands. Using these modified nanoparticles, we were able to achieve orthogonal control of self-assembly using a magnetic field and light.
AB - Self-assembly of inorganic nanoparticles has been studied extensively for particles having different sizes and compositions. However, relatively little attention has been devoted to how the shape and surface chemistry of magnetic nanoparticles affects their self-assembly properties. Here, we undertook a combined experiment-theory study aimed at better understanding of the self-assembly of cubic magnetite (Fe3O4) particles. We demonstrated that, depending on the experimental parameters, such as the direction of the magnetic field and nanoparticle density, a variety of superstructures can be obtained, including one-dimensional filaments and helices, as well as C-shaped assemblies described here for the first time. Furthermore, we functionalized the surfaces of the magnetic nanocubes with light-sensitive ligands. Using these modified nanoparticles, we were able to achieve orthogonal control of self-assembly using a magnetic field and light.
UR - http://www.scopus.com/inward/record.url?scp=84937697344&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84937697344&partnerID=8YFLogxK
U2 - 10.1039/c4fd00265b
DO - 10.1039/c4fd00265b
M3 - Article
VL - 181
SP - 403
EP - 421
JO - Faraday Discussions
JF - Faraday Discussions
SN - 1364-5498
ER -