Synthesis and characterization of Fe3O4–TiO2 core-shell nanoparticles

Ştefan, Maria; Panâ, O.; Leoștean, Cristian; Bele, Constantin; Silipas, D. T.; Șenilă, Marin; Gautron, Éric

doi:10.1063/1.4896070

Cited by 98 publications

(35 citation statements)

References 56 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In HRTEM images, the magnetic core is visible as a dark spot inside the bright spherical Schiff base complex grafted to O bond;Ti material. Our results agree with previous data presented in literature …”

Section: Resultssupporting

confidence: 94%

⁸⁹Zr Labeled Fe₃O₄@TiO₂ Nanoparticles: In Vitro Afffinities with Breast and Prostate Cancer Cells

Ünak

Tekin

Guldu

et al. 2020

Applied Organom Chemis

View full text Add to dashboard Cite

In this study, Fe3O4@TiO2 nanoparticles were synthesized as a new Positron Emission Tomography/Magnetic Resonance Imaging (PET/MRI) hybrid imaging agent and radiolabeled with 89Zr. In addition, Fe3O4 nanoparticles were synthesized and radiolabeled with 89Zr. Df‐Bz‐NCS was used as bifunctional ligand. The nanoconjugates were characterized with transmission electron microscopy, scanning electron microscopy, and dynamic light scattering. Radiolabeling yields were 100%. Breast and prostate cancer cell affinities and cytotoxicity were determined using in vitro cell culture assays. The results demonstrated that Fe3O4@TiO2 nanoparticles are promising for PET/MR imaging. Finally, unlike Fe3O4 nanoparticles, Fe3O4@TiO2 nanoparticles showed a fluorescence spectrum at an excitation wavelength of 250 nm and an emission wavelength of 314 nm. Therefore, in addition to bearing the magnetic properties of Fe3O4 nanoparticles, Fe3O4@TiO2 nanoparticles display fluorescence emission. This provides them with photodynamic therapy potential. Therefore multimodal treatment was performed with the combination of PDT and RT by using human prostate cancer cell line (PC3). The development of 89Zr‐Df‐Bz‐NCS‐Fe3O4@TiO2 nanoparticles as a new multifunctional PET/MRI agent with photodynamic therapy and hyperthermia therapeutic ability would be very useful.

show abstract

Section: Resultssupporting

confidence: 94%

⁸⁹Zr Labeled Fe₃O₄@TiO₂ Nanoparticles: In Vitro Afffinities with Breast and Prostate Cancer Cells

Ünak

Tekin

Guldu

et al. 2020

Applied Organom Chemis

View full text Add to dashboard Cite

show abstract

“…The calculated optical band gap from (αhν) 1/2 versus hν plot for as-spun and annealed TNFs are 3.18 eV and 3.08 eV. The band gap of a semiconductor in generally decreases as the crystallite size increases [52]. Here it is clearly observed that the TNF band gap decreases due to the increase in crystallite size at higher annealing temperatures.…”

Section: Xrd and Raman Studiesmentioning

confidence: 71%

Electrospun TiO₂ nanofiber electrodes for high performance supercapacitors

Narayana

Hussain

Reddy

2020

Mater. Res. Express

View full text Add to dashboard Cite

Nanofibers are one dimensional (1D) nanoarchitecture materials having high surface-to-volume ratio which provides improved ion diffusion and high mechanical strength to prevent volume expansion during electrochemical process and enhance the cycle stability. In the present study, TiO 2 nanofibers (TNFs) were successfully synthesized on an aluminum collector with a polymer concentration of 9 wt % by cost-effective electrospinning technique followed by annealing at a temperature 500°C. The XRD spectrum of electrospun TNFs exhibited predominant (101) orientation corresponding to anatase TiO 2 with I4 1 /amd symmetry. The estimated average crystallite size is 18 nm. The strongest Raman vibrational mode at 143 cm −1 confirms the phase purity of TNFs. The surface morphological feature depicts interconnected network fibers with a variation in the fiber diameter and the estimated average diameter is ∼150±20 nm. Very smooth surface and homogenously distributed ultra long nanofibers are observed from TEM analysis. The newly fabricated TNF electrode delivered a specific capacitance of 75 Fg −1 and retained 95% capacitance even after 5000 cycles. Moreover, it exhibited energy density and power density values of 24 Whkg −1 and 22.08 Wkg −1 respectively. The large capacitance, high coulombic efficiency and good structural stability demonstrate that TNFs should open up new opportunities for the next-generation high performance supercapacitors.

show abstract

“…2b). In this process, the core/shell NPs is designed by growing a uniform shell on the core NPs through adsorption of the shell compound ions on the seed-mediated NPs [38, 39]. This growth technique can be used for the fabrication of NPs such as Fe 3 O 4 Au x Ag y with controlled size by acting on the precursor concentration of the shell component.…”

Section: Introductionmentioning

confidence: 99%

Selective synthesis of Fe3O4Au x Ag y nanomaterials and their potential applications in catalysis and nanomedicine

Fodjo

Gabriel

Serge

et al. 2017

Chemistry Central Journal

View full text Add to dashboard Cite

In these recent years, magnetite (Fe3O4) has witnessed a growing interest in the scientific community as a potential material in various fields of application namely in catalysis, biosensing, hyperthermia treatments, magnetic resonance imaging (MRI) contrast agents and drug delivery. Their unique properties such as metal–insulator phase transitions, superconductivity, low Curie temperature, and magnetoresistance make magnetite special and need further investigation. On the other hand, nanoparticles especially gold nanoparticles (Au NPs) exhibit striking features that are not observed in the bulk counterparts. For instance, the mentioned ferromagnetism in Au NPs coated with protective agents such as dodecane thiol, in addition to their aptitude to be used in near-infrared (NIR) light sensitivity and their high adsorptive ability in tumor cell, make them useful in nanomedicine application. Besides, silver nanoparticles (Ag NPs) are known as an antimicrobial agent. Put together, the nanocomposites with tunable size can therefore display important demanding properties for diverse applications. In this review, we try to examine the new trend of magnetite-based nanomaterial synthesis and their application in catalysis and nanomedicine.

show abstract

Synthesis and characterization of Fe3O4–TiO2 core-shell nanoparticles

Cited by 98 publications

References 56 publications

⁸⁹Zr Labeled Fe₃O₄@TiO₂ Nanoparticles: In Vitro Afffinities with Breast and Prostate Cancer Cells

⁸⁹Zr Labeled Fe₃O₄@TiO₂ Nanoparticles: In Vitro Afffinities with Breast and Prostate Cancer Cells

Electrospun TiO₂ nanofiber electrodes for high performance supercapacitors

Selective synthesis of Fe3O4Au x Ag y nanomaterials and their potential applications in catalysis and nanomedicine

Contact Info

Product

Resources

About

Synthesis and characterization of Fe3O4–TiO2 core-shell nanoparticles

Cited by 98 publications

References 56 publications

89Zr Labeled Fe3O4@TiO2 Nanoparticles: In Vitro Afffinities with Breast and Prostate Cancer Cells

89Zr Labeled Fe3O4@TiO2 Nanoparticles: In Vitro Afffinities with Breast and Prostate Cancer Cells

Electrospun TiO2 nanofiber electrodes for high performance supercapacitors

Selective synthesis of Fe3O4Au x Ag y nanomaterials and their potential applications in catalysis and nanomedicine

Contact Info

Product

Resources

About

⁸⁹Zr Labeled Fe₃O₄@TiO₂ Nanoparticles: In Vitro Afffinities with Breast and Prostate Cancer Cells

⁸⁹Zr Labeled Fe₃O₄@TiO₂ Nanoparticles: In Vitro Afffinities with Breast and Prostate Cancer Cells

Electrospun TiO₂ nanofiber electrodes for high performance supercapacitors