2014-5-1 · Iron oxide magnetic nanoparticles decorated silica colloid can be synthesized through layer-by-layer assembly with PDDA as binding agent. At each stage of synthesis, due to charge reversal, the nanostructure formed could remove oppositely charged dye molecules.
2021-11-1 · Magnetic iron oxide nanoparticles have attracted attention because of their idiosyncratic physicochemical characteristics and vast range of applications such as protein separations, catalysis, magnetic resonance imaging (MRI), magnetic sensors, drug delivery, and magnetic refrigeration. The activity of the catalyst depends on the chemical ...
2021-4-18 · Programmable Assembly of Iron Oxide Nanoparticles Using DNA Origami Travis A. Meyer, Chuan Zhang, Gang Bao, and Yonggang Ke* Cite This: Nano Lett. 2020, 20, 2799−2805 Read Online ACCESS Metrics & More Article Recommendations * sı Supporting Information ABSTRACT: Magnetic iron oxide nanoparticles (IONPs) have received significant interest ...
2021-4-28 · This work reveals the As(V) adsorption behaviors onto iron oxide (Fe3O4) nanoparticles modified activated carbon (AC), originally developed from biochar (BC), as a green adsorbent denoted by FAC. Since FAC has abundant surface functional groups and a desired porous structure that is favorable for the removal of As(V) in contaminated water, FAC has greatly enhanced the As(V) adsorption …
Magnetic iron oxide nanoparticles (IONPs) have received significant interest for the use in biomedical applications. The assembly of IONPs into larger superstructures has been used to modify the ...
2016-2-11 · The 1D assembly of iron oxide nanoparticles onto a substrate is controlled using "click" chemistry under an external magnetic field. Co-aligned single nanoparticle chains separated by regular distances can be obtained by this strategy. The intrinsic high uniaxial anisotropy results in a strong enhancement of magnetic collective properties ...
2016-10-26 · The magnetic-field-induced assembly of magnetic nanoparticles (NPs) provides a unique and flexible strategy in the design and fabrication of functional nanostructures and devices. We have investigated the field-induced self-assembly of …
2008-10-2 · Surface functionalized magnetic iron oxide nanoparticles (NPs) are a kind of novel functional materials, which have been widely used in the biotechnology and catalysis. This review focuses on the recent development and various strategies in preparation, structure, and magnetic properties of naked and surface functionalized iron oxide NPs and their corresponding application briefly.
2020-3-30 · Magnetic iron oxide nanoparticles (IONPs) have received significant interest for the use in biomedical applications. The assembly of IONPs into larger superstructures has been used to modify the properties and functionality of these particles.
2018-1-1 · Applications of Magnetic Iron Oxide Nanoparticles. Nanostructured magnetic materials are omnipresent. They are used in medical, environmental, and technical applications . Iron oxide nanoparticles consist mostly of maghemite (γ-Fe 2 O 3) or magnetite (Fe 3 O 4) and exhibit single domains of about 5–20 nm in diameter . Magnetite is a cubic ...
Assembly of polyethylenimine-functionalized iron oxide nanoparticles as agents for DNA transfection with magnetofection technique . Lei Zhang, a Yecheng Li, a Jimmy C. …
2020-1-7 · The crystalline phase of the synthesized iron oxide nanoparticles was confirmed with X-ray diffraction (XRD) using a Panalytical X''pert powder diffractometer. This instrument used a Cu anode to supply Kα radiation and a scintillation detector (45 kV, 40 mA). Iron oxide nanoparticle samples were analyzed with a step size of 0.016°.
2017-2-15 · Here, we describe a microparticle system designed through covalent assembly of multiple iron oxide nanoparticles (NPs), which combines the advantages of the micron-size iron particle range with ...
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2013-8-29 · Keywords: Self-assembly system, Nanotechnology, Iron oxide nanoparticles, Magnetic susceptibility, SQUID magnetometry 1. INTRODUCTION Nanoparticles attract nowadays considerable research attention because they are expected to be useful as novel materials for applications in various devices such as memories, batteries, and displays showing enhanced
Synthesis, Purification and Assembly of Gold and Iron Oxide Nanoparticles. View/ Open. Qiu_ou_0169D_10488.pdf (73.77Mb) Date 2010. Author. Qiu, Penghe. Metadata Show …
2010-10-20 · We report on self-assembled iron oxide nanoparticle films on silicon substrates. In addition to homogeneously assembled layers, we fabricated patterned trenches of 40-1000 nm width using electron beam lithography for the investigation of assisted self-assembly. The nanoparticles with a diameter of 20 nm +/- 7% were synthesized by thermal decomposition of iron oleate complexes in …
2017-3-31 · Assembly of Au Plasmonic Photothermal Agent and Iron Oxide Nanoparticles on Ultrathin Black Phosphorus for Targeted Photothermal and Photodynamic Cancer Therapy Dan Yang, Key Laboratory of Superlight Materials and Surface Technology, Ministry of Education, College of Materials Science and Chemical Engineering, Harbin Engineering University ...
The combination of multiple functionalities in a single material is an appealing strategy for the de-velopment of smart materials with unique features. In this work, we present the preparation of thermoresponsive magnetic nanoparticles and their one-dimensional assembly into transient micro-filaments. The material is based on 9.4 nm iron oxide nanoparticles grafted with poly(N-n ...
2021-3-20 · The iron oxide nanoparticles were synthesized according to the Massart method [] by alkaline coprecipitation of iron(II) and iron(III) chloride salts, which was …
2021-2-15 · Iron oxide nanoparticles have attracted much attention because of their superparamagnetic properties and their potential applications in many fields such as magnetic storage devices, catalysis, sensors, superparamagnetic relaxometry (SPMR), and high‐sensitivity biomolecule magnetic resonance imaging (MRI) for medical diagnosis and therapeutics.
2021-1-4 · Hypoxia-Triggered Self-Assembly of Ultrasmall Iron Oxide Nanoparticles to Amplify the Imaging Signal of a Tumor Journal of the American Chemical Society ( IF 15.419) Pub Date : 2021-01-04, DOI: 10.1021/jacs.0c10245
2021-3-20 · The iron oxide nanoparticles were synthesized according to the Massart method [] by alkaline coprecipitation of iron(II) and iron(III) chloride salts, which was followed by oxidation of the magnetite (Fe 3 O 4) into maghemite (γ-Fe 2 O 3) …
Magnetic iron oxide nanoparticles (IONPs) have received significant interest for the use in biomedical applications. The assembly of IONPs into larger superstructures has been used to modify the properties and functionality of these particles. For example, the clustering of IONPs can lead to improve …
2016-4-27 · nanoparticles (iron oxide nanocubes and other morphologies, gadolinium orthophosphate nanorods, tungsten oxide nanowires and nanorods, palladium nanospheres, and facetted iron-manganese oxides hybrid nanoparticles) using thermal decomposition of metal complex precursors in high-boiling point
2014-2-7 · OSTI.GOV Journal Article: Template assisted self-assembly of iron oxide nanoparticles: An x-ray structural analysis
2015-4-8 · A facile method to synthesize core-shell iron oxide/polymer nanospheres has been developed. Oleic acid-modified iron oxide nanoparticles were first prepared by the coprecipitation method. The iron oxide nanoparticles were then assembled into colloidal magnetic nanoparticle clusters (MNCs) by a miniemulsion-based assembly approach. The size of the MNCs can be tuned from about 50 nm to …
2012-6-14 · Magnetic nanoparticles (MNPs) of iron oxides exhibit unique and often advantageous properties suitable for a large variety of applications. Among other iron oxides, magnetite (Fe 3 O 4) is one of the most versatile ferromagnetic materials with a high saturation magnetization, a Curie temperature well above the ambient, a relatively weak magneto-crystalline anisotropy and …
2021-3-26 · Detailed calculations of the specific absorption rate (SAR) of a dilute assembly of iron oxide nanoparticles with effective uniaxial anisotropy dispersed in a liquid are performed depending on the ...
2021-10-21 · Synthesis of iron oxide Nanoparticles. Self-assembly method: FeCl3 (125 mM), urea (125 mM) and tetra-n-butylammonium bromide (62 mM) were added to 100 ml ethylene glycol in a conical flask. The red solution thus obtained was stirred with a magnetic stirrer and heated at 200 oC for 1 h. After cooling, the as-synthesized iron
2018-3-21 · Abstract: This chapter describes the synthesis and some characteristics of magnetic iron oxide nanoparticles, mainly nanocubes, and focus on their self-assembly into crystalline cuboids in dispersion. The influence of external magnetic fields, the concentration of particles, and the temperature on the assembly process is experimentally investigated.
2011-1-6 · Besides the multifunctionality, another equally important aspect of nanoparticles is their engineerability to control the geometrical and chemical properties during fabrication. In this work, we exploited this aspect to define asymmetric surface chemistry of an iron oxide nanosphere by controlling the topology of ligand expression on its surface resulting in a particle with two faces, one ...
2020-4-24 · Programmable Assembly of Iron Oxide Nanoparticles Using DNA Origami. Nano Letters ( IF 11.189 ) Pub Date : 2020-03-30, DOI: 10.1021/acs.nanolett.0c00484. Travis A Meyer,Chuan Zhang,Gang Bao,Yonggang Ke. Magnetic iron oxide nanoparticles (IONPs) have received significant interest for the use in biomedical applications.