Fabrication of a multifunctional magnetic-fluorescent material for medical applications

Arteaga-Cardona, Fernando; Estevez, J. O.; Méndez‐Rojas, Miguel A.; Hidalgo-Tobón, Silvia; Dies-Suárez, Pilar; Silva‐González, R.; Jimenez, J.; Cherr, Gary N.; Salazar-Kuri, U.

doi:10.1039/c9dt04823e

Cited by 5 publications

(1 citation statement)

References 51 publications

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“…Therefore, multifunctional composites including biomedicine, environmental protection, material science, and many other elds have gradually aroused more and more interests among scientists [1][2][3]. Among such composites, multifunctional luminescent-magnetic composites simultaneously possess excellent magnetism and luminescence, and have been widely used in biomedical applications such as magnetic resonance imaging (MRI), targeted drug delivery, cell labeling and separation [4][5][6]. Zhuang et al synthesized multifunctional NPs encoded with quantum dots and magnetic NPs for cell tagging and MRI [7].…”

Section: Introductionmentioning

confidence: 99%

Electrospinning synthesis of Fe3O4/Eu(DBM)3phen/PVP multifunctional microfibers and their structure, luminescent and magnetic properties

Qin

Liu

2021

J Mater Sci: Mater Electron

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Multifunctional Fe 3 O 4 /Eu(DBM) 3 phen/PVP ((DBM: dibenzoylmethane, phen: 1,10-phenanthroline, PVP: polyvinyl pyrrolidone) micro bers were constructed by simple electrospinning process. The structure and morphology of the micro bers were characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM) and transmission electron microscopy (TEM) images. The diameters of pure PVP micro bers and the micro bers doped only with Fe 3 O 4 nanoparticles (NPs) were uniformly distributed, with an average size of about 360 nm. When 3% Eu(DBM) 3 phen complex and Fe 3 O 4 NPs were both added to the precursor for electrospinning, the micro bers became very inhomogeneous in diameter. The photoluminescent properties of pure Eu(DBM) 3 phen complex and composite micro bers were also studied. The characteristic emission peaks of Eu 3+ appeared in the composite micro bers. The intensities of emission and excitation spectra gradually decrease with adding more Fe 3 O 4 NPs. The unit mass of the pure europium complex in some composite micro bers gave stronger luminescence than the pure europium complex. The uorescence lifetime of 5 D 0 state in the composite micro bers is longer than that of pure europium complex. Additionally, the magnetic properties of Fe 3 O 4 NPs and the composite micro bers were investigated. Fe 3 O 4 NPs and composite micro bers were both superparamagnetic. The saturation magnetization of the composite micro bers was smaller than that of pure Fe 3 O 4 NPs.

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