Highly sensitive electrochemiluminescence biosensors for cholesterol detection based on mesoporous magnetic core–shell microspheres

2014 ◽  
Vol 36 (9) ◽  
pp. 1835-1841 ◽  
Author(s):  
Juanjuan Zhang ◽  
Shihong Chen ◽  
Xingrong Tan ◽  
Xia Zhong ◽  
Dehua Yuan ◽  
...  
Keyword(s):  
Magnetic Core ◽  
Core Shell ◽  
Cholesterol Detection ◽  
Highly Sensitive

Magnetic core-shell fibrous silica functionalized with pyrene derivative for highly sensitive and selective detection of Hg (II) ion

2019 ◽  
Vol 40 (9) ◽  
pp. 1368-1377
Author(s):  
Kothalam Radhakrishnan ◽  
Perumal Panneerselvam ◽  
Ayyanu Ravikumar ◽  
Norhashimah Morad
Keyword(s):  
Magnetic Core ◽  
Core Shell ◽  
Selective Detection ◽  
Highly Sensitive

A multifunctional magnetic core–shell fibrous silica sensing probe for highly sensitive detection and removal of Zn2+ from aqueous solution

2015 ◽  
Vol 3 (18) ◽  
pp. 4713-4722 ◽  
Author(s):  
Zebin Sun ◽  
Haizhen Li ◽  
Dan Guo ◽  
Jian Sun ◽  
Guijia Cui ◽  
...  
Keyword(s):  
Aqueous Solution ◽  
Magnetic Core ◽  
Sensitive Detection ◽  
Core Shell ◽  
Highly Sensitive ◽  
Highly Sensitive Detection

A multifunctional core-shell magnetic fibrous silica sensing probe AQ-Fe3O4@SiO2@KCC-1 was prepared for the detection, adsorption and removal of Zn2+ in aqueous solution.

scholarly journals Facile construction of magnetic core–shell covalent organic frameworks as efficient solid-phase extraction adsorbents for highly sensitive determination of sulfonamide residues against complex food sample matrices

RSC Advances ◽  
2019 ◽  
Vol 9 (25) ◽  
pp. 14247-14253 ◽  
Author(s):  
Jing-Min Liu ◽  
Shi-Wen Lv ◽  
Xin-Yue Yuan ◽  
Hui-Lin Liu ◽  
Shuo Wang
Keyword(s):  
Solid Phase Extraction ◽  
Solid Phase ◽  
Food Samples ◽  
Magnetic Core ◽  
Core Shell ◽  
Phase Extraction ◽  
Covalent Organic Frameworks ◽  
Highly Sensitive ◽  
Sulfonamide Residues

Robust and efficient solid-phase extraction adsorbents based on magnetic core–shell covalent organic frameworks gave excellent analytical performance for determination of sulfonamide residues in food samples.

scholarly journals Fabrication of copper(II)-coated magnetic core-shell nanoparticles Fe3O4@SiO2-2-aminobenzohydrazide and investigation of its catalytic application in the synthesis of 1,2,3-triazole compounds

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
H. Rajabi-Moghaddam ◽  
M. R. Naimi-Jamal ◽  
M. Tajbakhsh
Keyword(s):  
High Efficiency ◽  
Click Reaction ◽  
Magnetic Core ◽  
Core Shell ◽  
Isatoic Anhydride ◽  
Shell Nanoparticles ◽  
Triazole Derivatives ◽  
Catalytic Application ◽  
Ft Ir ◽  
Core Shell Nanoparticles

AbstractIn the present work, an attempt has been made to synthesize the 1,2,3-triazole derivatives resulting from the click reaction, in a mild and green environment using the new copper(II)-coated magnetic core–shell nanoparticles Fe3O4@SiO2 modified by isatoic anhydride. The structure of the catalyst has been determined by XRD, FE-SEM, TGA, VSM, EDS, and FT-IR analyzes. The high efficiency and the ability to be recovered and reused for at least up to 6 consecutive runs are some superior properties of the catalyst.

scholarly journals Removal of Cd(II) from Micro-Polluted Water by Magnetic Core-Shell Fe3O4@Prussian Blue

Molecules ◽  
2021 ◽  
Vol 26 (9) ◽  
pp. 2497
Author(s):  
Xinxin Long ◽  
Huanyu Chen ◽  
Tijun Huang ◽  
Yajing Zhang ◽  
Yifeng Lu ◽  
...  
Keyword(s):  
Prussian Blue ◽  
Co Adsorption ◽  
Magnetic Core ◽  
Diameter Distribution ◽  
Polluted Water ◽  
Core Shell ◽  
Freundlich Model ◽  
Rate Limiting Step ◽  
Rate Limiting

A novel core-shell magnetic Prussian blue-coated Fe3O4 composites (Fe3O4@PB) were designed and synthesized by in-situ replication and controlled etching of iron oxide (Fe3O4) to eliminate Cd (II) from micro-polluted water. The core-shell structure was confirmed by TEM, and the composites were characterized by XRD and FTIR. The pore diameter distribution from BET measurement revealed the micropore-dominated structure of Fe3O4@PB. The effects of adsorbents dosage, pH, and co-existing ions were investigated. Batch results revealed that the Cd (II) adsorption was very fast initially and reached equilibrium after 4 h. A pH of 6 was favorable for Cd (II) adsorption on Fe3O4@PB. The adsorption rate reached 98.78% at an initial Cd (II) concentration of 100 μg/L. The adsorption kinetics indicated that the pseudo-first-order and Elovich models could best describe the Cd (II) adsorption onto Fe3O4@PB, indicating that the sorption of Cd (II) ions on the binding sites of Fe3O4@PB was the main rate-limiting step of adsorption. The adsorption isotherm well fitted the Freundlich model with a maximum capacity of 9.25 mg·g−1 of Cd (II). The adsorption of Cd (II) on the Fe3O4@PB was affected by co-existing ions, including Cu (II), Ni (II), and Zn (II), due to the competitive effect of the co-adsorption of Cd (II) with other co-existing ions.

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