Preparation and characterization of narrow sized (o/w) magnetic emulsion

Montagne, Franck; Mondain‐Monval, Olivier; Pichot, Christian; Mozzanega, H.; Elaı̈ssari, Abdelhamid

doi:10.1016/s0304-8853(02)00412-2

Cited by 117 publications

(65 citation statements)

References 25 publications

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“…These wavelengths are associated with the stretching and torsional vibration modes of the Fe-O bonds in tetrahedral and octahedral sites in Fe 3 O 4 spinel-type structure. Data are in accordance with other authors (Yamaura et al 2004;Montagne et al 2002) who described the bands at 580 and 680 cm -1 associated with inorganic magnetic component. In the range of 3200-3600 cm -1 , the OH stretching vibrations are found.…”

Section: Structural Characterizationsupporting

confidence: 92%

In situ preparation of a magnetic composite during functionalization of poly[maleic anhydride-co-3,9-divinyl-2,4,8,10-tetraoxaspiro(5.5)undecane] with erythritol

Neamţu¹,

Chiriac²,

Niţă³

et al. 2015

J Nanopart Res

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New magnetic hybrid composites were prepared, in situ, during the functionalization of poly [maleic anhydride-co-3,9-divinyl-2,4,8,10-tetraoxaspiro(5.5)undecane] copolymer, by opening the anhydride ring with erythritol and by introducing magnetic nanoparticles into the polymeric matrix. The procedure allows for magnetic nanocomposite preparation. More than that, the new polymeric matrices owing to their suitable and specific functionalities are anticipated to be used for further link of biological molecules via the maleic anhydride moiety and the polyol presence. The hybrid composites are analyzed by infrared absorption spectrometry, dynamic light scattering (DLS), TG-DTG analysis, X-ray diffraction, SEM, TEM, and vibrating sample magnetometry. Examination of the magnetic composites by DLS analysis shows that the material consists mostly of particles with mean sizes between 295 and 342 nm, depending on the magnetite type in synthesis. The obtained results indicate the magnetite encapsulation and the interactions established with the polymeric matrix that lead to carbonyl band shifting in FTIR spectra, composite particle size decreasing, and influence on XRD and magnetic behavior data. The report of magnetization demonstrates that the prepared nanocomposites are superparamagnetic.

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Section: Structural Characterizationsupporting

confidence: 92%

In situ preparation of a magnetic composite during functionalization of poly[maleic anhydride-co-3,9-divinyl-2,4,8,10-tetraoxaspiro(5.5)undecane] with erythritol

Neamţu¹,

Chiriac²,

Niţă³

et al. 2015

J Nanopart Res

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“…From the crystallographic point of view, maghemite is usually described to have an inverse spinel cubic structure [31], that is cation deficient, in which the trivalent iron atoms are located in two non-equivalent sites, i.e. tetrahedral and octahedral ones (see Fig.…”

mentioning

confidence: 99%

Zero-field and in-field Mössbauer spectroscopy as a tool for structural and magnetic characterization of maghemite (γ-Fe2O3) nanoparticles

Zbořil

2005

Czech J Phys

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“…3b), the weak peak at 1255 cm -1 is due to C-O stretching; and the peaks at 1453 and 1533 cm -1 are corresponding to the asymmetric and symmetric COO -stretching modes, respectively. These two peaks are attributed to the oleate ion immobilised on the MNPs surface (Montagne et al 2002). The band at 1709 cm -1 is due to the stretching vibration of C=O in OA.…”

Section: Ftir Spectramentioning

confidence: 95%

Synthesis, Magneto-structural Properties and Colloidal Stability Studies of Ni0.3Zn0.7Fe2O4 Nanoparticles Coated with Pluronic P123 Block Copolymer for Potential Biomedical Applications

Ehi-Eromosele

Ita

Iweala

2018

Iran J Sci Technol Trans Sci

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Spinel Ni 0.3 Zn 0.7 Fe 2 O 4 (NZFO) magnetic nanoparticles was prepared by the low temperature auto-combustion method using a glycine fuel-rich composition without any further heat treatment at high temperature. Subsequently, the synthesized MNPs were coated with Pluronic P123 (PP123) after its surface was functionalized with oleic acid (OA). The effect of the coatings on the morphology, structural and magnetic properties of NZFO nanoparticles was studied using powder X-ray diffraction (XRD), Fourier transform infrared, thermogravimetric analysis, field emission scanning electron microscopy (FE-SEM) and vibrating sample magnetometer (VSM). The colloidal behaviour of coated MNPs in physiological saline medium like water or phosphate buffer saline (PBS) was also studied by zeta potential measurements. XRD results showed the formation of cubic spinel crystalline phase with and without OA-PP123 coatings. Also, after OA-PP123 coating, the crystallite size (from Scherrer formula) decreases from 55 to 53 nm. However, an enlargement in the particle size and a reduction in agglomeration were observed from FE-SEM results when the nanoparticles were coated with OA-PP123. VSM measurements showed ferromagnetic behaviour at room temperature before and after coating. The colloidal stability study of the coated sample revealed a considerable high zeta potential value at physiological pH (7.4) highlighting its potential biomedical applications.

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Preparation and characterization of narrow sized (o/w) magnetic emulsion

Cited by 117 publications

References 25 publications

In situ preparation of a magnetic composite during functionalization of poly[maleic anhydride-co-3,9-divinyl-2,4,8,10-tetraoxaspiro(5.5)undecane] with erythritol

In situ preparation of a magnetic composite during functionalization of poly[maleic anhydride-co-3,9-divinyl-2,4,8,10-tetraoxaspiro(5.5)undecane] with erythritol

Zero-field and in-field Mössbauer spectroscopy as a tool for structural and magnetic characterization of maghemite (γ-Fe2O3) nanoparticles

Synthesis, Magneto-structural Properties and Colloidal Stability Studies of Ni0.3Zn0.7Fe2O4 Nanoparticles Coated with Pluronic P123 Block Copolymer for Potential Biomedical Applications

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