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Search for "iron" in Full Text gives 399 result(s) in Beilstein Journal of Nanotechnology. Showing first 200.

Nitrogen-vacancy centers in diamond for nanoscale magnetic resonance imaging applications

  • Alberto Boretti,
  • Lorenzo Rosa,
  • Jonathan Blackledge and
  • Stefania Castelletto

Beilstein J. Nanotechnol. 2019, 10, 2128–2151, doi:10.3762/bjnano.10.207

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  • NV magnetometer and the related MRI contrast. MRI contrast is thus correlated to submicrometer resolution and nanotesla sensitivity magnetic field measurements in biological samples. Molecular-imaging agents such as iron oxide nanoparticles (IONPs) can strongly influence MRI images with their
  • IONPs was also performed. The NV-based 3D magnetic imaging method was then applied to diagnostic imaging of liver specimens (tissue) from a model of hepatic iron overload in a mouse and of dynamic endocytic uptake of IONPs in live mammalian cells. Magnetometry based on the electron spin of NV defects in
  • measurement of the lower (first) critical field of three different superconductors, high-Tc cuprate YBa2Cu3O7−δ (YBCO), and iron-based superconductors is performed, as the lower critical field is a fundamental parameter to characterize a type-II superconductor. Sample cooling to a target temperature below Tc
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Published 04 Nov 2019

Microbubbles decorated with dendronized magnetic nanoparticles for biomedical imaging: effective stabilization via fluorous interactions

  • Da Shi,
  • Justine Wallyn,
  • Dinh-Vu Nguyen,
  • Francis Perton,
  • Delphine Felder-Flesch,
  • Sylvie Bégin-Colin,
  • Mounir Maaloum and
  • Marie Pierre Krafft

Beilstein J. Nanotechnol. 2019, 10, 2103–2115, doi:10.3762/bjnano.10.205

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  • ), were synthesized and grafted on the surface of iron oxide nanoparticles (IONPs) for microbubble-mediated imaging and therapeutic purposes. The size and stability of the dendronized IONPs (IONP@CnX2n+1OEG8Den) in aqueous dispersions were monitored by dynamic light scattering. The investigation of the
  • the phospholipid film, while those grafted with the hydrocarbon dendrons are located at the surface of the phospholipid film. Keywords: diagnostic imaging; fluorinated dendrons; fluorocarbon; iron oxide nanoparticles; magnetic nanoparticles; microbubbles; Introduction Microbubbles (MBs), that is
  • signal for energy deposition, as is required for sonothrombolysis or ablation surgery. MBs incorporating iron oxide nanoparticles (IONPs) are sought after as dual contrast agents for ultrasound and magnetic resonance imaging [18][19][20] and drug delivery [21][22]. The shells of the presently available
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Published 31 Oct 2019

Synthesis of highly active ETS-10-based titanosilicate for heterogeneously catalyzed transesterification of triglycerides

  • Muhammad A. Zaheer,
  • David Poppitz,
  • Khavar Feyzullayeva,
  • Marianne Wenzel,
  • Jörg Matysik,
  • Radomir Ljupkovic,
  • Aleksandra Zarubica,
  • Alexander A. Karavaev,
  • Andreas Pöppl,
  • Roger Gläser and
  • Muslim Dvoyashkin

Beilstein J. Nanotechnol. 2019, 10, 2039–2061, doi:10.3762/bjnano.10.200

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  • zero-field splitting (ZFS) parameter (D >> 10 GHz) and a ratio between rhombic and axial ZFS of 1/3. Such Fe(III) centers have been commonly observed in zeolite and silica materials and were assigned to iron sites with a distorted tetrahedral coordination geometry [56][57]. In addition, P-ETS-10/60
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Published 28 Oct 2019

Gold-coated plant virus as computed tomography imaging contrast agent

  • Alaa A. A. Aljabali,
  • Mazhar S. Al Zoubi,
  • Khalid M. Al-Batanyeh,
  • Ali Al-Radaideh,
  • Mohammad A. Obeid,
  • Abeer Al Sharabi,
  • Walhan Alshaer,
  • Bayan AbuFares,
  • Tasnim Al-Zanati,
  • Murtaza M. Tambuwala,
  • Naveed Akbar and
  • David J. Evans

Beilstein J. Nanotechnol. 2019, 10, 1983–1993, doi:10.3762/bjnano.10.195

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  • contrast. This effect is known as paramagnetic relaxation enhancement [2] and is common among contrast agents containing gadolinium [3] and iron oxide nanoparticles [4]. CT is a non-invasive, diagnostic imaging tool that allows for 3-D visual reconstruction and tissue segmentation. It relies on the use of
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Published 07 Oct 2019

Porous silver-coated pNIPAM-co-AAc hydrogel nanocapsules

  • William W. Bryan,
  • Riddhiman Medhi,
  • Maria D. Marquez,
  • Supparesk Rittikulsittichai,
  • Michael Tran and
  • T. Randall Lee

Beilstein J. Nanotechnol. 2019, 10, 1973–1982, doi:10.3762/bjnano.10.194

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  • , Zhao et al. created pH- and temperature-sensitive bioprobes by incorporating pNIPAM hydrogel cores with europium organic complexes [67]. In separate studies, Lee and co-workers utilized both biocompatible gold nanoshells, iron oxide nanoparticles, and gold nanorods with thermo-responsive hydrogel
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Published 04 Oct 2019

Magnetic properties of biofunctionalized iron oxide nanoparticles as magnetic resonance imaging contrast agents

  • Natalia E. Gervits,
  • Andrey A. Gippius,
  • Alexey V. Tkachev,
  • Evgeniy I. Demikhov,
  • Sergey S. Starchikov,
  • Igor S. Lyubutin,
  • Alexander L. Vasiliev,
  • Vladimir P. Chekhonin,
  • Maxim A. Abakumov,
  • Alevtina S. Semkina and
  • Alexander G. Mazhuga

Beilstein J. Nanotechnol. 2019, 10, 1964–1972, doi:10.3762/bjnano.10.193

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  • Background: One of the future applications of magnetic nanoparticles is the development of new iron-oxide-based magnetic resonance imaging (MRI) negative contrast agents, which are intended to improve the results of diagnostics and complement existing Gd-based contrast media. Results: Iron oxide
  • and human serum albumin coated iron oxide nanoparticles was observed by Mössbauer spectroscopy. Conclusion: This difference in magnetic behavior is explained by the influence of biofunctionalization on the magnetic and electronic properties of the iron oxide nanoparticles. The ZF-NMR spectra analysis
  • allowed us to determine the relative amount of iron located in the core and the surface layer of the nanoparticles. The obtained results are important for understanding the structural and magnetic properties of iron oxide nanoparticles used as T2 contrast agents for MRI. Keywords: iron oxides; Mössbauer
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Published 02 Oct 2019

Facile synthesis of carbon nanotube-supported NiO//Fe2O3 for all-solid-state supercapacitors

  • Shengming Zhang,
  • Xuhui Wang,
  • Yan Li,
  • Xuemei Mu,
  • Yaxiong Zhang,
  • Jingwei Du,
  • Guo Liu,
  • Xiaohui Hua,
  • Yingzhuo Sheng,
  • Erqing Xie and
  • Zhenxing Zhang

Beilstein J. Nanotechnol. 2019, 10, 1923–1932, doi:10.3762/bjnano.10.188

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  • Education, School of Physical Science and Technology, Lanzhou University, Lanzhou 730000, China 10.3762/bjnano.10.188 Abstract We have successfully prepared iron oxide and nickel oxide on carbon nanotubes on carbon cloth for the use in supercapacitors via a simple aqueous reduction method. The obtained
  • supercapacitors. Keywords: aqueous reduction; carbon nanotubes; iron oxide; nickel oxide; supercapacitors; Introduction Supercapacitors offer long cycling life, superior charge–recharge ability, high power density, and wide operating temperature [1][2][3]. However, the low energy density limits their
  • . deposited iron oxide on CNTs by atomic layer deposition (ALD) and the obtained CNTs@Fe2O3 presented a specific capacitance of 580.6 F·g−1 at 5 A·g−1 [21]. Zhang et al. used magnetron sputtering to prepare sandwich-like CNT@Fe2O3@C structures, and the composite exhibited a specific capacitance of 787.5 F·g−1
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Published 23 Sep 2019

Engineered superparamagnetic iron oxide nanoparticles (SPIONs) for dual-modality imaging of intracranial glioblastoma via EGFRvIII targeting

  • Xianping Liu,
  • Chengjuan Du,
  • Haichun Li,
  • Ting Jiang,
  • Zimiao Luo,
  • Zhiqing Pang,
  • Daoying Geng and
  • Jun Zhang

Beilstein J. Nanotechnol. 2019, 10, 1860–1872, doi:10.3762/bjnano.10.181

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  • Education, 826 Zhangheng Road, Shanghai 201203, China 10.3762/bjnano.10.181 Abstract In this work, a peptide-modified, biodegradable, nontoxic, brain-tumor-targeting nanoprobe based on superparamagnetic iron oxide nanoparticles (SPIONs) (which have been commonly used as T2-weighted magnetic resonance (MR
  • imaging (MRI); molecular imaging; superparamagnetic iron oxide nanoparticles (SPIONs); nanomedicine; tumor resection; Introduction Tumor resection is one of the most promising clinical treatments of glioblastoma, which is commonly associated with high mortality and inevitable tumor recurrence. To achieve
  • , gadolinium (Gd)-based agents (often Gd-diethylenetriaminepentaacetic acid (DTPA)) and superparamagnetic iron oxide nanoparticles (SPIONs) are the paramagnetic materials generally used as contrast agents to impact the relaxation time T1 or T2, thus generating bright or dark images via MR imaging. Gd-DTPA, as
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Published 11 Sep 2019

Materials nanoarchitectonics at two-dimensional liquid interfaces

  • Katsuhiko Ariga,
  • Michio Matsumoto,
  • Taizo Mori and
  • Lok Kumar Shrestha

Beilstein J. Nanotechnol. 2019, 10, 1559–1587, doi:10.3762/bjnano.10.153

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  • -dimensional iron–nickel cyanide-bridged network at the air–water interface. A small amount of the amphiphilic pentacyanoferrate complex monomer was spread from a chloroform solution to form a monolayer in a LB trough, and was subsequently connected by introducing an aqueous solution of nickel nitrate into the
  • water phase, yielding a monolayer sheet of the two-dimensional nickel–iron cyanide grid network. Characterizations of the extended network by X-ray photoelectron spectroscopy (XPS), FTIR spectroscopy, SQUID magnetometry, X-ray absorption fine structure (XAFS), and grazing incidence synchrotron X-ray
  • (Figure 11) [227]. The demonstrated network structures are connected by the coordination of terpyridine moieties to either cobalt or iron ions, and the synthesized films change their colour depending on the oxidation levels of the cobalt and iron ions. The colours of those MOF films can be modulated
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Published 30 Jul 2019

Flexible freestanding MoS2-based composite paper for energy conversion and storage

  • Florian Zoller,
  • Jan Luxa,
  • Thomas Bein,
  • Dina Fattakhova-Rohlfing,
  • Daniel Bouša and
  • Zdeněk Sofer

Beilstein J. Nanotechnol. 2019, 10, 1488–1496, doi:10.3762/bjnano.10.147

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  • identified (Supporting Information File 1, Table S1) that there was about 2.1 wt % of iron in the sample. This contamination originates from the carbon nanotubes, where iron usually serves as a catalyst for their growth [36]. X-ray photoelectron spectroscopy (XPS) was used to track the degree of degradation
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Published 24 Jul 2019

Hierarchically structured 3D carbon nanotube electrodes for electrocatalytic applications

  • Pei Wang,
  • Katarzyna Kulp and
  • Michael Bron

Beilstein J. Nanotechnol. 2019, 10, 1475–1487, doi:10.3762/bjnano.10.146

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  • a glassy carbon (GC) substrate in a sequence of electrodeposition and chemical vapor deposition (CVD) steps as follows: Primary CNTs are grown over electrodeposited iron by CVD followed by a second Fe deposition and finally the CVD growth of secondary CNTs. The prepared 3-dimensional CNT structures
  • achieved via sequential growth of primary CNTs and secondary CNTs by CVD and finally Pt electrodeposition. CNT growth was carried out over electrodeposited iron nanoparticles. By varying the growth time, gas flow rate and ratio of H2/Ar, it was shown that the structural properties of the primary and
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Published 24 Jul 2019

Warped graphitic layers generated by oxidation of fullerene extraction residue and its oxygen reduction catalytic activity

  • Machiko Takigami,
  • Rieko Kobayashi,
  • Takafumi Ishii,
  • Yasuo Imashiro and
  • Jun-ichi Ozaki

Beilstein J. Nanotechnol. 2019, 10, 1391–1400, doi:10.3762/bjnano.10.137

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  • the ORR catalytic activity in some carbon catalysts (i.e., carbon alloy catalysts (CACs)). To prove our assumption, we needed to use WGLs consisting of carbon materials, but without any extrinsic catalytic elements, such as nitrogen, iron, or cobalt, which effectively enhance ORR activity. The present
  • . Controlling carbonization by metal catalysts such as iron or cobalt produces nanoshell-containing carbon (NSCC) with ORR activity [30][31][32][33][34][35]. This activity is thought to originate from surface defects formed on the nanoshell carbons, including edges and warped graphitic layers (WGLs) [31][36
  • diamond phase, nitrogen, boron, phosphorus, sulfur, and transition metals like iron and cobalt. Such WGLs can be obtained from fullerene-related materials. We selected a commercial carbon, Nanom Black, which is a fullerene extraction residue from a fullerene soot prepared by a combustion method [40]. The
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Published 12 Jul 2019

The effect of magneto-crystalline anisotropy on the properties of hard and soft magnetic ferrite nanoparticles

  • Hajar Jalili,
  • Bagher Aslibeiki,
  • Ali Ghotbi Varzaneh and
  • Volodymyr A. Chernenko

Beilstein J. Nanotechnol. 2019, 10, 1348–1359, doi:10.3762/bjnano.10.133

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  • output of a NP system [15][20][21]. Sathya et al. prepared CoxFe3−xO4 nanocubes by a thermal decomposition method and showed that nanoparticles of 18–20 nm in size and a Co fraction of x = 0.5–0.7 have the highest SAR value and are suitable for hyperthermia applications [12]. Nemati et al. prepared iron
  • substituting iron ions in the magnetite structure. This indicates an increase of the interplane distances (d) in the spinel structure. Similar results have been reported for NixCo1−xFe2O4 NPs by Caetano and co-workers [15]. According to Bragg’s law, λ = 2d·sin θ, (λ is the wavelength of X-ray wavelength, here
  • , tend to occupy both the B-sites and the smaller A-sites (see Figure 6). This mixed occupancy in cobalt-substituted magnetite nanoparticles has been confirmed by Mössbauer spectroscopy [30]. Therefore, it is expected that when cobalt ions substitute iron ions at the A-sites, an increasing Me–O bond
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Published 03 Jul 2019

Alloyed Pt3M (M = Co, Ni) nanoparticles supported on S- and N-doped carbon nanotubes for the oxygen reduction reaction

  • Stéphane Louisia,
  • Yohann R. J. Thomas,
  • Pierre Lecante,
  • Marie Heitzmann,
  • M. Rosa Axet,
  • Pierre-André Jacques and
  • Philippe Serp

Beilstein J. Nanotechnol. 2019, 10, 1251–1269, doi:10.3762/bjnano.10.125

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  • doping. Elemental and X-ray photoelectron spectroscopy (XPS) analysis results are shown in Table 1. The elemental analysis confirmed the efficiency of the doping, and showed that S-CNT contains a significant amount of residual catalyst (iron, encapsulated in the structure of the tubes). An effect of heat
  • matrix, while the oxidation of surface thiols should produce S–O bonds (peak at 168 eV). The presence of pyrite could arise from the significant amount of remaining iron catalyst in this sample. Different nitrogen groups are present in N-CNT, and the proportion of these groups was determined by
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Published 21 Jun 2019

Tailoring the magnetic properties of cobalt ferrite nanoparticles using the polyol process

  • Malek Bibani,
  • Romain Breitwieser,
  • Alex Aubert,
  • Vincent Loyau,
  • Silvana Mercone,
  • Souad Ammar and
  • Fayna Mammeri

Beilstein J. Nanotechnol. 2019, 10, 1166–1176, doi:10.3762/bjnano.10.116

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  • magnetic properties and there is no literature at all regarding non-stoichiometric NPs. Artus et al. produced stoichiometric NPs of various sizes (from 2.4 to 6.2 nm) depending on the hydrolysis ratio, starting from iron chloride and cobalt acetate in 1,2-propane-diol [22]. The blocking temperature (TB) of
  • stoichiometric NPs of different sizes, between 5 and 7 nm, in diethylene glycol, starting from iron and cobalt acetates, and using a seed-mediated growth approach [23]. They obtained monodisperse and stable particles, superparamagnetic at room temperature (RT), with, once again, high saturation magnetization
  • functionalized by coupling agents such as phosphonic acids to be introduced in polymers [32][33]. Experimental Synthesis of the nanoparticles The synthesis of the CoxFe3−xO4 nanoparticles (NPs) was carried out using the polyol process [22], starting from iron and cobalt acetates, Fe(CH3COO)2 and Co(CH3COO)2·4H2O
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Published 04 Jun 2019

Photoactive nanoarchitectures based on clays incorporating TiO2 and ZnO nanoparticles

  • Eduardo Ruiz-Hitzky,
  • Pilar Aranda,
  • Marwa Akkari,
  • Nithima Khaorapapong and
  • Makoto Ogawa

Beilstein J. Nanotechnol. 2019, 10, 1140–1156, doi:10.3762/bjnano.10.114

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  • CTA-saponite was stronger than in montmorillonite and CTA-montmorillonite, suggesting that the iron atoms in montmorillonite play a significant role through the quenching of excited states. In the photodegradation experiments, the ZnO–smectite nanoarchitectures show a longer life time at low pH values
  • ][132]. The incorporation of various types of NPs using neat clay and applying a two-step synthesis has been reported. A recent example of this refers to the incorporation of ZnO nanoparticles to a Fe3O4-sepiolite nanoarchitecture previously prepared by in situ formation of superparamagnetic iron-oxide
  • nanoparticles on the external surface of sepiolite fibres. The resulting ZnO–Fe3O4@sepiolite nanoarchitecture exhibits photoactivity due to the ZnO NPs, and the presence of magnetite NPs facilitates the recovery by the use of a magnet (Figure 4) [133]. Moreover, the presence of iron oxide could be useful also
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Published 31 May 2019

Scavenging of reactive oxygen species by phenolic compound-modified maghemite nanoparticles

  • Małgorzata Świętek,
  • Yi-Chin Lu,
  • Rafał Konefał,
  • Liliana P. Ferreira,
  • M. Margarida Cruz,
  • Yunn-Hwa Ma and
  • Daniel Horák

Beilstein J. Nanotechnol. 2019, 10, 1073–1088, doi:10.3762/bjnano.10.108

Graphical Abstract
  • analysis. Magnetic measurements indicated that the polymer coating does not affect the superparamagnetic character of the iron oxide core. However, magnetic saturation decreased with increasing thickness of the polymer coating. The antioxidant properties of the nanoparticles were analyzed using a 2,2
  • -diphenyl-1-picrylhydrazyl (DPPH) assay. Cellular uptake and intracellular antioxidant activity of the particles were evaluated by an iron assay and flow cytometry, respectively, using L-929 and LN-229 cells. Compared to the control, the phenolic modification significantly reduced intracellular reactive
  • catalyzed by metal-ion cofactors, such as iron, copper, zinc, and manganese [3]. The non-enzymatic antioxidant defense uses glutathione, vitamins C and E, melatonin, catecholamines, and substances of plant origin, such as phenols and carotenoids, to interrupt undesirable ROS action. Phenolic compounds are
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Published 20 May 2019

Fe3O4 nanoparticles as a saturable absorber for giant chirped pulse generation

  • Ji-Shu Liu,
  • Xiao-Hui Li,
  • Abdul Qyyum,
  • Yi-Xuan Guo,
  • Tong Chai,
  • Hua Xu and
  • Jie Jiang

Beilstein J. Nanotechnol. 2019, 10, 1065–1072, doi:10.3762/bjnano.10.107

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  • optic jumper to better interact with the light. The lattice spacing of the Fe3O4 NP material is shown in Figure 2b. Yellow, green and red circles correspond to positive trivalent iron ions, positive divalent iron ions and negative divalent oxygen ions, respectively. The inserts show three different
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Published 20 May 2019

Influence of dielectric layer thickness and roughness on topographic effects in magnetic force microscopy

  • Alexander Krivcov,
  • Jasmin Ehrler,
  • Marc Fuhrmann,
  • Tanja Junkers and
  • Hildegard Möbius

Beilstein J. Nanotechnol. 2019, 10, 1056–1064, doi:10.3762/bjnano.10.106

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  • overlapped by additional forces acting on the tip such as electrostatic forces. In this work the possibility to reduce capacitive coupling effects between tip and substrate is discussed in relation to the thickness of a dielectric layer introduced in the system. Single superparamagnetic iron oxide
  • roughness of dielectric films with increasing film thickness. Keywords: capacitive coupling; electrostatic effects; magnetic force microscopy; nanoparticles; superparamagnetic iron oxide nanoparticle (SPION); Introduction MFM has become an important tool for studying magnetic properties of surface
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Published 17 May 2019

Magnetic field-assisted assembly of iron oxide mesocrystals: a matter of nanoparticle shape and magnetic anisotropy

  • Julian J. Brunner,
  • Marina Krumova,
  • Helmut Cölfen and
  • Elena V. Sturm (née Rosseeva)

Beilstein J. Nanotechnol. 2019, 10, 894–900, doi:10.3762/bjnano.10.90

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  • Julian J. Brunner Marina Krumova Helmut Colfen Elena V. Sturm (nee Rosseeva) University of Konstanz, Konstanz, Germany 10.3762/bjnano.10.90 Abstract This letter describes the formation and detailed characterization of iron oxide mesocrystals produced by the directed assembly of superparamagnetic
  • iron oxide-truncated nanocubes using the slow evaporation of the solvent within an externally applied homogeneous magnetic field. Anisotropic mesocrystals with an elongation along the direction of the magnetic field can be produced. The structure of the directed mesocrystals is compared to self
  • to further design novel superstructures including mesocrystals with outstanding morphologies and orientational relations of nanocrystals, which cannot be formed otherwise. In our previous study, the iron oxide nanocrystal synthesis and characterization as well as the formation of self-assembled
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Published 17 Apr 2019

Co-doped MnFe2O4 nanoparticles: magnetic anisotropy and interparticle interactions

  • Bagher Aslibeiki,
  • Parviz Kameli,
  • Hadi Salamati,
  • Giorgio Concas,
  • Maria Salvador Fernandez,
  • Alessandro Talone,
  • Giuseppe Muscas and
  • Davide Peddis

Beilstein J. Nanotechnol. 2019, 10, 856–865, doi:10.3762/bjnano.10.86

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  • (x = 0, 0.25, 0.5, 0.75, 1) were synthesized following a simple method based on solid-state ball milling and calcination of nitrate precursors and citric acid, discussed previously to prepare pure MnFe2O4 [22]. Manganese nitrate (Mn(NO3)2·4H2O, Merck, 99%), iron nitrate (Fe(NO3)3·9H2O, Merck, 99
  • 1000 Hz. Mössbauer spectra were recorded at room temperature using a source of 57Co in Rh, in transmission geometry. The velocity scale was calibrated using a 25 μm Fe foil; the isomer shift values are referred to metal iron. The spectra were analysed as a superposition of two components with peaks of
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Published 12 Apr 2019

Tungsten disulfide-based nanocomposites for photothermal therapy

  • Tzuriel Levin,
  • Hagit Sade,
  • Rina Ben-Shabbat Binyamini,
  • Maayan Pour,
  • Iftach Nachman and
  • Jean-Paul Lellouche

Beilstein J. Nanotechnol. 2019, 10, 811–822, doi:10.3762/bjnano.10.81

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  • latter group, nanostructures of metals [38], metal oxides (including iron oxides) [39], and metal chalcogenides [40][41] were studied. Tungsten oxides [42] and molybdenum oxides [43] were studied, as well as their disulfides. The disulfides were tested mainly in the forms of nanosheets [44], nanoflakes
  • chalcophylic metal ions (nickel, iron, ruthenium) and leaving parts of the ion coordination sites free for docking to the chalcogen layer. The molecular structure of both NTA and TerPy enables performing versatile chemistry on the ligand. Cerium is a metal of the lanthanide series with versatile coordinative
  • contents were washed with three portions of ddH2O (10 mL each), and centrifuged at 4000 rpm for 10 min at 18 °C each time. The washed nanocomposite was dispersed in ddH2O (25 mL). The iron concentration in the dispersion was determined by the inductively coupled plasma (ICP) method to be 2.7 mg/mL
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Published 02 Apr 2019

Review of time-resolved non-contact electrostatic force microscopy techniques with applications to ionic transport measurements

  • Aaron Mascaro,
  • Yoichi Miyahara,
  • Tyler Enright,
  • Omur E. Dagdeviren and
  • Peter Grütter

Beilstein J. Nanotechnol. 2019, 10, 617–633, doi:10.3762/bjnano.10.62

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  • + conducting glasses [7]. To further expand the power of the technique, Mascaro et al. developed a real-time averaging system used in conjunction with a fast (high-bandwidth) PLL to improve the time resolution [12]. This enabled ionic transport measurements to be performed on lithium iron phosphate (LiFePO4
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Published 01 Mar 2019

Heating ability of magnetic nanoparticles with cubic and combined anisotropy

  • Nikolai A. Usov,
  • Mikhail S. Nesmeyanov,
  • Elizaveta M. Gubanova and
  • Natalia B. Epshtein

Beilstein J. Nanotechnol. 2019, 10, 305–314, doi:10.3762/bjnano.10.29

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  • ; Introduction Magnetic hyperthermia [1][2][3] is a promising therapeutic method that can be used in combination with chemotherapy or radiotherapy for cancer treatment. Iron oxide nanoparticles are among the materials most popular for application in biomedicine due to their biocompatibility, biodegradability [4
  • ] have been devoted to the development of advanced methods for the synthesis of iron oxide nanoparticles and measurement of their SAR under various conditions. It should be noted that in theoretical SAR calculations [15][16][17][18][19][20][21][22] the assemblies of magnetic nanoparticles with uniaxial
  • magnetic anisotropy have mostly been studied. Meanwhile, perfect iron oxide nanoparticles of spherical shape should have cubic-type magnetic anisotropy [5]. However, to describe the existing experimental data properly one has also to take into account the possible perturbation of the nanoparticle shape. A
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Published 29 Jan 2019

Study of silica-based intrinsically emitting nanoparticles produced by an excimer laser

  • Imène Reghioua,
  • Mattia Fanetti,
  • Sylvain Girard,
  • Diego Di Francesca,
  • Simonpietro Agnello,
  • Layla Martin-Samos,
  • Marco Cannas,
  • Matjaz Valant,
  • Melanie Raine,
  • Marc Gaillardin,
  • Nicolas Richard,
  • Philippe Paillet,
  • Aziz Boukenter,
  • Youcef Ouerdane and
  • Antonino Alessi

Beilstein J. Nanotechnol. 2019, 10, 211–221, doi:10.3762/bjnano.10.19

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  • details of a part (framed in blue in panel a) of such image. Such a detailed image allows us to illustrate the presence of nanoparticles of hundreds of nanometers in diameter and some with a diameter of under 100 nm. The EDX signals of such a sample revealed the presence of iron. This contamination
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Published 16 Jan 2019
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