scholarly journals Organized Silica Films Generated by Evaporation-Induced Self-Assembly as Hosts for Iron Oxide Nanoparticles

Materials ◽  
2013 ◽  
Vol 6 (4) ◽  
pp. 1467-1484 ◽  
Author(s):  
Ioanna Andreou ◽  
Heinz Amenitsch ◽  
Vlassis Likodimos ◽  
Polycarpos Falaras ◽  
Petros Koutsoukos ◽  
...  
Keyword(s):  
Iron Oxide ◽  
Iron Oxide Nanoparticles ◽  
Self Assembly ◽  
Oxide Nanoparticles ◽  
Silica Films ◽  
Evaporation Induced Self Assembly

Dendrimer Mediated ‘Bricks and Mortar’ Self-Assembly of Nanoparticles

2002 ◽  
Vol 739 ◽  
Author(s):  
Benjamin L. Frankamp ◽  
Andrew K. Boal ◽  
Vincent M. Rotello
Keyword(s):  
Magnetic Properties ◽  
Iron Oxide ◽  
Iron Oxide Nanoparticles ◽  
Self Assembly ◽  
Quantum Interference ◽  
Pamam Dendrimers ◽  
Interparticle Spacing ◽  
Blocking Temperature ◽  
Oxide Nanoparticles ◽  
Particle Spacing

ABSTRACTControl of particle-particle spacing is a key determinant of optical, electronic, and magnetic properties of nanocomposite materials. We have used poly(amidoamine) (PAMAM) dendrimers to assemble carboxylic acid-functionalized mixed monolayer protected clusters (MMPCs) through acid/base chemistry between particle and polymer. IR spectroscopy and selective dendrimer staining, observed by Transmission Electron Microscopy (TEM), establish that the PAMAM dendrimers are the mortar in the assembly and act to space the MMPCs in the resulting aggregates. Small angle X-ray scattering (SAXS) was then used to establish average interparti cle distances; five generations of PAMAM dendrimer (0, 1, 2, 4, 6) were investigated and monotonic increase in interparticle spacing from 4.1 nm to 6.1 nm was observed.Initial studies involving the application of this methodology to control the magnetic properties of 3-iron oxide nanoparticles have been completed. γ-Iron oxide nanoparticles (6.5 nm in diameter) have been assembled with PAMAM dendrimers generations 2.5, 4.5, and 6.5. The resulting aggregates were characterized with SAXS and magnetization obtained on a super conducting quantum interference devise (SQUID). An observed correlation between the blocking temperature (TB) and the average interparticle spacing suggests that our methodology could be used to tailor the magnetic profile of the nanoparticles.

Modulation of Spacing and Magnetic Properties of Iron Oxide Nanoparticles through Polymer-Mediated “Bricks and Mortar” Self-assembly

2004 ◽  
Vol 16 (17) ◽  
pp. 3252-3256 ◽  
Author(s):  
Andrew K. Boal ◽  
Benjamin L. Frankamp ◽  
Oktay Uzun ◽  
Mark T. Tuominen ◽  
Vincent M. Rotello
Keyword(s):  
Magnetic Properties ◽  
Iron Oxide ◽  
Iron Oxide Nanoparticles ◽  
Self Assembly ◽  
Oxide Nanoparticles

scholarly journals Size-controlled clustering of iron oxide nanoparticles within fluorescent nanogels using LCST-driven self-assembly

2020 ◽  
Vol 8 (24) ◽  
pp. 5330-5335
Author(s):  
Turgay Yildirim ◽  
Maria Pervez ◽  
Bo Li ◽  
Rachel K. O’Reilly
Keyword(s):  
Iron Oxide ◽  
Iron Oxide Nanoparticles ◽  
Self Assembly ◽  
Solution Temperature ◽  
Cross Linking ◽  
Oxide Nanoparticles ◽  
Critical Solution Temperature ◽  
Grafted Polymer ◽  
Fluorescent Polymer ◽  
Size Controlled

Size-controlled clustering of iron oxide nanoparticles (IONPs) within the fluorescent polymer nanogels was achieved using the lower critical solution temperature (LCST) driven self-assembly and cross-linking of grafted polymer on the IONPs.

Functionalized SPIONs: the surfactant nature modulates the self-assembly and cluster formation

2016 ◽  
Vol 18 (27) ◽  
pp. 18441-18449 ◽  
Author(s):  
Alessandra Luchini ◽  
Richard K. Heenan ◽  
Luigi Paduano ◽  
Giuseppe Vitiello
Keyword(s):  
Iron Oxide ◽  
Iron Oxide Nanoparticles ◽  
Self Assembly ◽  
Cluster Formation ◽  
Superparamagnetic Iron Oxide ◽  
The Self ◽  
Superparamagnetic Iron Oxide Nanoparticles ◽  
Oxide Nanoparticles ◽  
Suitable System

SuperParamagnetic Iron Oxide Nanoparticles (SPIONs) represent a suitable system for several applications especially in nanomedicine.

scholarly journals Self-Assembly of Magnetic Iron Oxide Nanoparticles Into Cuboidal Superstructures

2018 ◽  
pp. 165-189 ◽  
Author(s):  
Sabine Rosenfeldt ◽  
Stephan Förster ◽  
Thomas Friedrich ◽  
Ingo Rehberg ◽  
Birgit Weber
Keyword(s):  
Iron Oxide ◽  
Iron Oxide Nanoparticles ◽  
Self Assembly ◽  
Oxide Nanoparticles ◽  
Magnetic Iron Oxide Nanoparticles ◽  
Magnetic Iron Oxide
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