Synthesis and characterization of dl-thioctic acid (DLTA)–Fe3O4 nanocomposite

Karaoğlu, E.; Baykal, A.; Erdemi, H.; Alpsoy, Lokman; Sözeri, H.

doi:10.1016/j.jallcom.2011.06.118

Cited by 68 publications

(25 citation statements)

References 53 publications

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“…The spherical nanoparticles have similar characteristics with those of pure magnetite but some rodlike nanoparticles can be also identified, their length reaching up to 50 nm, while the diameter is less than 10 nm. Based on the crystallite size determined by Debye-Scherrer equation, a good consistency between the TEM and XRD data can be concluded if considering also the capping effect induced by the stabilizing agent [36] except for the case of the rodlike structures identified in Fe 3 O 4 @GLU where these particles contain tens of crystallites. In the case of Fe 3 O 4 @SAL and Fe 3 O 4 @TCA, the size of the spherical nanoparticles is decreasing dramatically compared with the previous MNPs; the use of TCA as stabilizing agent induces the most important size reduction and, thus, has the best ability to stabilize the magnetite and can be correlated with the higher amount of stabilizing agent linked onto the magnetite core (7.28%).…”

Section: Ftirmentioning

confidence: 66%

Development of Stabilized Magnetite Nanoparticles for Medical Applications

Ardelean

Stoencea

Ficai

et al. 2017

Journal of Nanomaterials

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We report a facile method to synthesize magnetite nanoparticles with mesoporous structure by coprecipitation method using different stabilizing agents like salicylic acid, glutamic acid, and trichloroacetic acid. The stabilizing agents were used to prevent the aggregation of the magnetite nanocrystals and to obtain stable nanostructures even in the biological environment. The structure and morphology of magnetic nanocrystals were determined using X-ray diffraction (XRD), Fourier Transform Infrared (FTIR) spectroscopy, Brunauer-Emmett-Teller (BET) analysis, infrared (IR) spectra, scanning and transmission electron microscopy (SEM and TEM), high-resolution transmission electron microscopy (HRTEM), and selected area electron diffraction (SAED). The results reveal important differences between these magnetic nanoparticles (MNPs), which are mainly attributed to the stabilizing agents. The smallest nanoparticles were obtained in the presence of trichloroacetate ions. The mechanism of formation of these suprastructures is strongly correlated with the end functional groups of the stabilizing agent. Thus, the obtained nanoparticles are potential candidates for contrast agents as well as targeted carrier for specific diseases, especially cancer.

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Section: Ftirmentioning

confidence: 66%

Development of Stabilized Magnetite Nanoparticles for Medical Applications

Ardelean

Stoencea

Ficai

et al. 2017

Journal of Nanomaterials

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“…-O absorption bands around 585 cm −1 corroborates that the main phase of as-prepared particles is magnetite[21][22][23][24][25]. Two characteristic bands at 2900-2800 cm −1 of C-H stretching and 1116-1050 cm −1 of C-O stretching in spectra confirm the attachment of TEG on the particle surfaces[26][27][28][29][30][31].…”

mentioning

confidence: 52%

Structural and Magnetic Properties of Triethylene Glycol Stabilized Monodisperse Fe3O4 Nanoparticles

Günay

Baykal

Sözeri

2012

J Supercond Nov Magn

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In this present study, a facile synthetic route was developed to prepare super-paramagnetic Fe 3 O 4 MNPs directly via a one-pot approach. In this synthesis, only one iron containing compound and instead of high-boiling-point solvents, water-soluble tetraethylene glycol (TEG) was used as both the solvent and surfactant to control the particle growth and to prevent the aggregation of particles. Crystallite, particle, and magnetic core size are in good agreement with each other. The VSM measurement shows the superparamagnetic property of the product. The existence of TEG layer on the surface of the Fe 3 O 4 nanoparticles was confirmed by Fourier transform infrared spectroscopy and thermal gravimetric analysis. The monodisperse morphology of the product was presented via TEM analysis. Due to the monodisperse morphology, superparamagnetic property, and small particle size, the product may have a potential application in biomedical research field.

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“…Three characteristic peaks in CA FT-IR spectrum [ Fig. 1(b)] correspond to the C¼ O stretching of free carboxylic acids at 1607 cm À 1 , asymmetric COO À stretching at 1596 cm À 1 , and symmetric COO À stretching at 1430 cm À 1 [31]. Two bands at 2924 and 2854 cm À 1 were attributed to asymmetric and symmetric CH2 stretching vibrations, respectively.…”

Section: Ft-ir Analysismentioning

confidence: 99%