Amine-Functionalized Fe2O3-SiO2 Core-Shell Nanoparticles With Tunable Sizes

Yun Teng; Chengpeng Jiang; Antonio Ruotolo; Philip W. T. Pong

doi:10.1109/TNANO.2016.2636254

Amine-Functionalized Fe₂O₃-SiO₂ Core-Shell Nanoparticles With Tunable Sizes

Yun Teng, Chengpeng Jiang, Antonio Ruotolo, Philip W. T. Pong

Research output: Journal Publications and Reviews › RGC 21 - Publication in refereed journal › peer-review

13 Citations (Scopus)

Abstract

Iron oxide magnetic nanoparticles (MNPs) coated with uniform silica shell were synthesized through thermal decomposition and inverse microemulsion methods. The iron oxide MNPs were further coated with silica shells through hydrolysis reaction. For the resulting core-shell MNPs, size regulation of both the magnetic core and the porous shell were achieved, enabling the modulation of their magnetic properties and magnetic interactions. Core-shell MNPs were finally functionalized with amine groups, and immobilized on gold surface due to charge-neutral amine/gold interactions. It was observed that the immobilization process was enhanced under external magnetic field.

Original language	English
Article number	7776953
Pages (from-to)	69-77
Journal	IEEE Transactions on Nanotechnology
Volume	17
Issue number	1
Online published	1 Dec 2016
DOIs	https://doi.org/10.1109/TNANO.2016.2636254
Publication status	Published - Jan 2018

Research Keywords

Core-shell nanoparticle
Magnetic nanoparticle
Nanoparticle functionalization
Nanoparticle size control

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title = "Amine-Functionalized Fe2O3-SiO2 Core-Shell Nanoparticles With Tunable Sizes",

abstract = "Iron oxide magnetic nanoparticles (MNPs) coated with uniform silica shell were synthesized through thermal decomposition and inverse microemulsion methods. The iron oxide MNPs were further coated with silica shells through hydrolysis reaction. For the resulting core-shell MNPs, size regulation of both the magnetic core and the porous shell were achieved, enabling the modulation of their magnetic properties and magnetic interactions. Core-shell MNPs were finally functionalized with amine groups, and immobilized on gold surface due to charge-neutral amine/gold interactions. It was observed that the immobilization process was enhanced under external magnetic field.",

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T1 - Amine-Functionalized Fe2O3-SiO2 Core-Shell Nanoparticles With Tunable Sizes

AU - Teng, Yun

AU - Jiang, Chengpeng

AU - Ruotolo, Antonio

AU - Pong, Philip W. T.

PY - 2018/1

Y1 - 2018/1

N2 - Iron oxide magnetic nanoparticles (MNPs) coated with uniform silica shell were synthesized through thermal decomposition and inverse microemulsion methods. The iron oxide MNPs were further coated with silica shells through hydrolysis reaction. For the resulting core-shell MNPs, size regulation of both the magnetic core and the porous shell were achieved, enabling the modulation of their magnetic properties and magnetic interactions. Core-shell MNPs were finally functionalized with amine groups, and immobilized on gold surface due to charge-neutral amine/gold interactions. It was observed that the immobilization process was enhanced under external magnetic field.

AB - Iron oxide magnetic nanoparticles (MNPs) coated with uniform silica shell were synthesized through thermal decomposition and inverse microemulsion methods. The iron oxide MNPs were further coated with silica shells through hydrolysis reaction. For the resulting core-shell MNPs, size regulation of both the magnetic core and the porous shell were achieved, enabling the modulation of their magnetic properties and magnetic interactions. Core-shell MNPs were finally functionalized with amine groups, and immobilized on gold surface due to charge-neutral amine/gold interactions. It was observed that the immobilization process was enhanced under external magnetic field.

KW - Core-shell nanoparticle

KW - Magnetic nanoparticle

KW - Nanoparticle functionalization

KW - Nanoparticle size control

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DO - 10.1109/TNANO.2016.2636254

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EP - 77

JO - IEEE Transactions on Nanotechnology

JF - IEEE Transactions on Nanotechnology

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