Structural characterization of copolymer embedded magnetic nanoparticles

Nedelcu, G.G.; Nastro, A.; Filippelli, Luigi; Cazacu, Maria; Iacob, Mihail; Rossi, Cesare Oliviero; Popa, Adriana; Toloman, Dana; Dobromir, Marius; Iacomi, Felicia

doi:10.1016/j.apsusc.2015.04.191

Cited by 10 publications

(3 citation statements)

References 47 publications

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“…Magnetic nanoparticles have attracted much attention for applications in many fields such as biomedical 1 and environmental purification. 2 Among them, iron oxides have often been selected as tools for magnetic resonance imaging, [3][4][5] catalysis, 6 medical diagnoses, 7 hyperthermiabased therapies, 8 and the delivery of drugs, 9 genes, and siRNA. 10 Magnetite (Fe 3 O 4 ) nanoparticles (MNP) are one of the typical iron oxides and have superparamagnetic property due to its nano size.…”

Section: Introductionmentioning

confidence: 99%

Facile synthesis, characterization of various polymer immobilized on magnetite nanoparticles applying the coprecipitation method

Hayashi

Tomonaga

Matsuyama

et al. 2021

J of Applied Polymer Sci

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In this study, systematic examination of the effect of different polymer types (functional groups) on the one-step synthesis of polymer immobilized magnetite nanoparticle via the modified coprecipitation method was carried out. By using five different polymers with different functional groups of polyacrylic acid (PAA), polyacrylamide (PAM), polyethylene glycol (PEG), polyethylene imine (PEI), and polyvinyl alcohol (PVA), the effect of the polymer difference on magnetite nanoparticle formation, polymer immobilization, composite particle size, zeta potential and magnetic properties of the resulting composite were measured in detail. The results show that the immobilized polymer yield varied significantly depending on the type of polymer used and their order was as follows; PEG < PEI < PAM < PAA < PVA. Despite the simple method, PVA/MNP achieved high immobilized polymer amount of 0.2 g/(g-Fe 3 O 4 ), which was about 1.8 times larger than that prepared by a conventional method. Furthermore, the different zeta potentials and hydrodynamic diameter corresponding to each functional group of the immobilized polymer were observed. The results of the vibrating sample magnetometer (VSM) measurement confirmed that all the polymer/MNP composites showed a superparamagnetic behavior. These results showed that the proposed method is very simple, facile, and applicable to various polymers to synthesize polymer immobilized on magnetite nanoparticle.

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Section: Introductionmentioning

confidence: 99%

Facile synthesis, characterization of various polymer immobilized on magnetite nanoparticles applying the coprecipitation method

Hayashi

Tomonaga

Matsuyama

et al. 2021

J of Applied Polymer Sci

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“…Superparamagnetic iron oxide nanoparticles (SPIONs) have aroused a great deal of interest in industrial and academic research because of their intrinsic properties such as superparamagnetism, high saturation magnetization, extra anisotropy contributions, negligible residual magnetization and coercivity, and low costs of production . In this sense, these materials can be employed in various fields such as paints, high density magnetic recording media, sensors and biosensors, catalyst supports as well as in biological applications and nanomedicine .…”

Section: Introductionmentioning

confidence: 99%

Bio‐Based Hybrid Magnetic Latex Particles Containing Encapsulated γ ‐Fe₂O₃ by Miniemulsion Copolymerization of Soybean Oil‐Acrylated Methyl Ester and Styrene

Medeiros

Machado

Bourgeat‐Lami

et al. 2018

Macro Materials & Eng

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This work reports the use of acrylated fatty acid methyl ester (AFAME) as a biomonomer for the synthesis of bio‐based hybrid magnetic particles poly(styrene‐co‐AFAME)/γ‐Fe2O3 produced by miniemulsion polymerization. Poly(styrene‐co‐AFAME)/γ‐Fe2O3 can be tailored for use in various fields by varying the content of AFAME. The strategy employed is to encapsulate superparamagnetic iron oxide nanoparticles (SPIONs) as γ‐Fe2O3 into a styrene/AFAME‐based copolymer matrix. Raman spectroscopy is employed to ensure the formation of the SPIONs (γ‐Fe2O3) obtained by a co‐precipitation technique followed by oxidation of Fe3O4. The functionalization of SPIONs with oleic acid (OA) is carried out to increase the SPIONs–monomer affinity. The presence of OA on the surface of γ‐Fe2O3 is certified by identification of main absorption bands by fourier‐transform infrared spectroscopy (FTIR). Thermal analysis (differential thermogravimetry/differential thermo analysis and differential scanning calorimetry) results of poly(styrene‐co‐AFAME)/γ‐Fe2O3 show an increase in AFAME content leading to a lower copolymer glass transition temperature (T g). Dynamic light scattering (DLS) measurements result in poly(styrene‐co‐AFAME)/γ‐Fe2O3 particles with diameter in the range of 100–150 nm. It is also observed by transmission electron microscopy (TEM) and cryo‐TEM techniques that γ‐Fe2O3 particles are successfully encapsulated into the poly(styrene‐co‐AFAME) matrix.

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“…Among the best known chemical methods are coprecipitation, thermal decomposition, hydrothermal method, solvothermal method and others [5,12–13]. An important advantage of chemical methods for preparing nanoparticles lies in the use of different stabilizing agents [4–16] which provide a number of advantages such as stability, dispersibility and compatibility with different backgrounds.…”

Section: Introductionmentioning

confidence: 99%

From iron coordination compounds to metal oxide nanoparticles

Iacob¹,

Racleş²,

Tugui³

et al. 2016

Beilstein J. Nanotechnol.

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Various types, shapes and sizes of iron oxide nanoparticles were obtained depending on the nature of the precursor, preparation method and reaction conditions. The mixed valence trinuclear iron acetate, [Fe2 IIIFeIIO(CH3COO)6(H2O)3]·2H2O (FeAc1), μ3-oxo trinuclear iron(III) acetate, [Fe3O(CH3COO)6(H2O)3]NO3∙4H2O (FeAc2), iron furoate, [Fe3O(C4H3OCOO)6(CH3OH)3]NO3∙2CH3OH (FeF), iron chromium furoate, FeCr2O(C4H3OCOO)6(CH3OH)3]NO3∙2CH3OH (FeCrF), and an iron complex with an original macromolecular ligand (FePAZ) were used as precursors for the corresponding oxide nanoparticles. Five series of nanoparticle samples were prepared employing either a classical thermal pathway (i.e., thermal decomposition in solution, solvothermal method, dry thermal decomposition/calcination) or using a nonconventional energy source (i.e., microwave or ultrasonic treatment) to convert precursors into iron oxides. The resulting materials were structurally characterized by wide-angle X-ray diffraction and Fourier transform infrared, Raman, energy-dispersive X-ray, and X-ray fluorescence spectroscopies, as well as thermogravimetric analysis. The morphology was characterized by transmission electron microscopy, atomic force microscopy and dynamic light scattering. The parameters were varied within each route to fine tune the size and shape of the formed nanoparticles.

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Structural characterization of copolymer embedded magnetic nanoparticles

Cited by 10 publications

References 47 publications

Facile synthesis, characterization of various polymer immobilized on magnetite nanoparticles applying the coprecipitation method

Facile synthesis, characterization of various polymer immobilized on magnetite nanoparticles applying the coprecipitation method

Bio‐Based Hybrid Magnetic Latex Particles Containing Encapsulated γ ‐Fe₂O₃ by Miniemulsion Copolymerization of Soybean Oil‐Acrylated Methyl Ester and Styrene

From iron coordination compounds to metal oxide nanoparticles

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Structural characterization of copolymer embedded magnetic nanoparticles

Cited by 10 publications

References 47 publications

Facile synthesis, characterization of various polymer immobilized on magnetite nanoparticles applying the coprecipitation method

Facile synthesis, characterization of various polymer immobilized on magnetite nanoparticles applying the coprecipitation method

Bio‐Based Hybrid Magnetic Latex Particles Containing Encapsulated γ ‐Fe2O3 by Miniemulsion Copolymerization of Soybean Oil‐Acrylated Methyl Ester and Styrene

From iron coordination compounds to metal oxide nanoparticles

Contact Info

Product

Resources

About

Bio‐Based Hybrid Magnetic Latex Particles Containing Encapsulated γ ‐Fe₂O₃ by Miniemulsion Copolymerization of Soybean Oil‐Acrylated Methyl Ester and Styrene