A novel europium-sensitive fluorescent nano-chemosensor based on new functionalized magnetic core–shell Fe3O4@SiO2 nanoparticles

Hosseini, Morteza; Khobi, Mehdi; Farahani, Shima; Shaban, Masoom; Faridbod, Farnoush; Shafiee, Abbas; Norouzi, Parviz

doi:10.1016/j.talanta.2013.04.010

Cited by 18 publications

(5 citation statements)

References 34 publications

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“…It took only about 5 s for the microspheres to aggregate from their homogeneous dispersion with the help of the external magnetic separation shelf, and the solution became clear, which is substantially shorter than the time reported in previously related methods . In addition to its superior dispersibility and homogeneity, it took much less time to prepare the SiO 2 @Fe 3 O 4 using the ultrasonic method applied in this study compared to the time required with the conventional mechanical stirring method, which has been reported as 6 , 8 , or 24 h .…”

Section: Resultsmentioning

confidence: 67%

Boronic acid functionalized Fe₃ O₄ magnetic microspheres for the specific enrichment of glycoproteins

Zhang

Tang

et al. 2016

J. Sep. Science

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Glycoproteins are useful biomarkers and therapeutic targets for a number of diseases, including infections and cancer. However, identification and isolation of low-abundant glycoproteins remains a significant challenge that limits their application. Thus, methods of specific and selective glycoprotein enrichment are required. In this study, novel phenylboronic acid functionalized magnetic microspheres were successfully synthesized. Fe3 O4 microspheres were synthesized by using a hydrothermal method and were coated with tetraethyl orthosilicate using an ultrasonic method to form a core-shell structure. Compared to the conventional mechanical stirring for 12 h, the ultrasonic method saved about 7 h in processing time, and the home-made magnetic microspheres had better dispersibility and homogeneity. Subsequently, the magnetic microspheres were modified by addition of an amino group and a carboxyl group, in sequence. Finally, 3-aminophenylboronic acid, as the functional monomer, was linked to the magnetic microspheres for capturing glycoprotein/glycopeptides. The results of this study indicate that phenylboronic acid functionalized magnetic microspheres show excellent adsorption performance toward glycoprotein/glycopeptides. The maximum absorbing capacity of the microspheres for fetuin was 108 mg/g, and the enrichment efficiency reached 89.7%, indicating their potential to separate and enrich glycoproteins from the complex biological samples.

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Section: Resultsmentioning

confidence: 67%

Boronic acid functionalized Fe₃ O₄ magnetic microspheres for the specific enrichment of glycoproteins

Zhang

Tang

et al. 2016

J. Sep. Science

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“…After adding 3‐mercaptopropyltrimethoxysilane (3‐MPTS; 2.0 ml) into the dispersed solution, the mixture was stirred for 20 h and the solid (Fe 3 O 4 @SiO 2 –Si–(CH 2 ) 3 –SH) was separated. The nanoparticles were then washed three times with anhydrous methanol and dried under vacuum …”

Section: Methodsmentioning

confidence: 99%

Magnetically water‐dispersible and recoverable rhodium organometallic catalyst derived from Wilkinson's catalyst for promoting organic reactions

Nejat

Mahjoub

2016

Applied Organom Chemis

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A novel magnetic rhodium catalyst was prepared through immobilizing Wilkinson's catalyst on the surface of silica-coated iron oxide nanoparticles. After (thio)diphenylphosphine (─S&─PPh 2 ) was modified on the surface of the silicacoated iron oxide nanoparticles, tris(triphenylphosphine)rhodium(I) chloride was employed to synthesize the Rh(Cl)(PPh 3 ) 2 (Ph 2 P&─S&─) complex, affording a rhodium loading of 0.16 mmol g −1. The Rh(I) organometallic magnetic nanoparticles form a novel class of heterogeneous catalyst which is particularly suitable for the practice of organic synthesis. The prepared system exhibits high catalytic efficiency in Suzuki-Miyaura and Miyaura-Michael reactions in ethanol-water solution. High yield, low reaction times, use of green solvents and non-toxicity of the catalyst are the main merits of this protocol. Also, magnetic separation is an environmentally friendly alternative for the recovery of the catalyst, since it minimizes energy and catalyst loss by preventing mass loss and oxidation. The produced catalyst was characterized using a variety of techniques.

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“…To put it simply, designing organic surfaces on MNPs allows them to perform multiple functions simultaneously, such as regulating stability under physiological conditions to integrate functional ligands. These ligands include carboxyl [41], phosphate [42], catechol [43], and siloxane [44]. Polymer modifications are widely used, including synthetic polyethylene glycol [42,45], polyethylene imine [46], polyacrylic acid [47], polyvinyl pyrrolidone [48], and natural dextran [49], chitosan [50], and alginate [51].…”

Section: Synthetic Strategies For Magnetic Nanomaterialsmentioning

confidence: 99%

Magnetic nanomaterials-mediated cancer diagnosis and therapy

Liu

Zhang

et al. 2021

Prog. Biomed. Eng.

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Magnetic nanomaterials have been widely used in various biomedical applications, which have seen accelerating interest since the breakthrough in the chemical synthesis of monodispersed iron oxide nanoparticles. Magnetic iron oxide nanoparticles (MIONs) possess excellent biocompatibility, and they can produce multiple physicochemical effects when exposed to magnetic fields. Due to this rapid development in MIONs for cancer diagnosis and therapy, it becomes necessary to present a comprehensive review paper from the biomedical engineering perspective. This review will present an overview of the recent synthesis methods used in the preparation of magnetic nanomaterials. We will then focus on the application of magnetic nanomaterials in imaging and therapy technology, and we will also evaluate their biosafety in vitro, in vivo, and clinical aspects. The therapeutic effects of magnetic theranostics, magnetocatalytic therapy, magnetically targeted therapy, and magnetothermal therapy under the guidance of imaging diagnosis will also be discussed in this review. Finally, we will briefly analyze the challenges of implementing magnetic nanomaterials as a nano-platform for imaging diagnosis and treatment, and we will also offer suggestions for future research in this field.

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A novel europium-sensitive fluorescent nano-chemosensor based on new functionalized magnetic core–shell Fe3O4@SiO2 nanoparticles

Cited by 18 publications

References 34 publications

Boronic acid functionalized Fe₃ O₄ magnetic microspheres for the specific enrichment of glycoproteins

Boronic acid functionalized Fe₃ O₄ magnetic microspheres for the specific enrichment of glycoproteins

Magnetically water‐dispersible and recoverable rhodium organometallic catalyst derived from Wilkinson's catalyst for promoting organic reactions

Magnetic nanomaterials-mediated cancer diagnosis and therapy

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A novel europium-sensitive fluorescent nano-chemosensor based on new functionalized magnetic core–shell Fe3O4@SiO2 nanoparticles

Cited by 18 publications

References 34 publications

Boronic acid functionalized Fe3 O4 magnetic microspheres for the specific enrichment of glycoproteins

Boronic acid functionalized Fe3 O4 magnetic microspheres for the specific enrichment of glycoproteins

Magnetically water‐dispersible and recoverable rhodium organometallic catalyst derived from Wilkinson's catalyst for promoting organic reactions

Magnetic nanomaterials-mediated cancer diagnosis and therapy

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Product

Resources

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Boronic acid functionalized Fe₃ O₄ magnetic microspheres for the specific enrichment of glycoproteins

Boronic acid functionalized Fe₃ O₄ magnetic microspheres for the specific enrichment of glycoproteins