Facile fabrication of water-soluble magnetic nanoparticles and their spherical aggregates

Hai Bing Xia; Jiabao Yi; Pei Shan Foo; Binghai Liu

doi:10.1021/cm070918q

Facile fabrication of water-soluble magnetic nanoparticles and their spherical aggregates

Hai Bing Xia^*, Jiabao Yi, Pei Shan Foo, Binghai Liu

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

76 Scopus citations

Abstract

In this paper, we report a facile synthetic approach for preparing water-soluble Fe₃O₄ nanoparticles with a surface-surrounded layer by the use of polyethylene glycol(5) nonylphenyl ether (NP5) and cyclodextrin (CD) in aqueous medium and also for building nanostructured spherical aggregates from individual magnetic nanoparticles, which were dependent on the concentration of CD and NP5, respectively. The morphology of Fe₃O₄ nanoparticles was studied by transmission electron microscopy. The mesoporous, spherical aggregates of Fe₃O₄ particles possessed a BET surface area of ca. 141.1 m² g^-1 without compromising that of the separated Fe ₃O₄ nanoparticles with coating (164.6 m² g ^-1) and still possessed magnetic properties. This method is very meaningful because it directly produces water-soluble magnetic nanoparticles, which is very important for applications of magnetic nanoparticles in biomedical fields and nanostructured spherical aggregates as magnetic carriers.

Original language	English
Pages (from-to)	4087-4091
Number of pages	5
Journal	Chemistry of Materials
Volume	19
Issue number	16
DOIs	https://doi.org/10.1021/cm070918q
State	Published - 7 Aug 2007
Externally published	Yes

ASJC Scopus subject areas

General Chemistry
General Chemical Engineering
Materials Chemistry

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@article{e36b5d7a1e2e4a72a609da1ee4c233f3,

title = "Facile fabrication of water-soluble magnetic nanoparticles and their spherical aggregates",

abstract = "In this paper, we report a facile synthetic approach for preparing water-soluble Fe3O4 nanoparticles with a surface-surrounded layer by the use of polyethylene glycol(5) nonylphenyl ether (NP5) and cyclodextrin (CD) in aqueous medium and also for building nanostructured spherical aggregates from individual magnetic nanoparticles, which were dependent on the concentration of CD and NP5, respectively. The morphology of Fe3O4 nanoparticles was studied by transmission electron microscopy. The mesoporous, spherical aggregates of Fe3O4 particles possessed a BET surface area of ca. 141.1 m2 g-1 without compromising that of the separated Fe 3O4 nanoparticles with coating (164.6 m2 g -1) and still possessed magnetic properties. This method is very meaningful because it directly produces water-soluble magnetic nanoparticles, which is very important for applications of magnetic nanoparticles in biomedical fields and nanostructured spherical aggregates as magnetic carriers.",

author = "Xia, \{Hai Bing\} and Jiabao Yi and Foo, \{Pei Shan\} and Binghai Liu",

year = "2007",

month = aug,

day = "7",

doi = "10.1021/cm070918q",

language = "English",

volume = "19",

pages = "4087--4091",

journal = "Chemistry of Materials",

issn = "0897-4756",

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TY - JOUR

T1 - Facile fabrication of water-soluble magnetic nanoparticles and their spherical aggregates

AU - Xia, Hai Bing

AU - Yi, Jiabao

AU - Foo, Pei Shan

AU - Liu, Binghai

PY - 2007/8/7

Y1 - 2007/8/7

N2 - In this paper, we report a facile synthetic approach for preparing water-soluble Fe3O4 nanoparticles with a surface-surrounded layer by the use of polyethylene glycol(5) nonylphenyl ether (NP5) and cyclodextrin (CD) in aqueous medium and also for building nanostructured spherical aggregates from individual magnetic nanoparticles, which were dependent on the concentration of CD and NP5, respectively. The morphology of Fe3O4 nanoparticles was studied by transmission electron microscopy. The mesoporous, spherical aggregates of Fe3O4 particles possessed a BET surface area of ca. 141.1 m2 g-1 without compromising that of the separated Fe 3O4 nanoparticles with coating (164.6 m2 g -1) and still possessed magnetic properties. This method is very meaningful because it directly produces water-soluble magnetic nanoparticles, which is very important for applications of magnetic nanoparticles in biomedical fields and nanostructured spherical aggregates as magnetic carriers.

AB - In this paper, we report a facile synthetic approach for preparing water-soluble Fe3O4 nanoparticles with a surface-surrounded layer by the use of polyethylene glycol(5) nonylphenyl ether (NP5) and cyclodextrin (CD) in aqueous medium and also for building nanostructured spherical aggregates from individual magnetic nanoparticles, which were dependent on the concentration of CD and NP5, respectively. The morphology of Fe3O4 nanoparticles was studied by transmission electron microscopy. The mesoporous, spherical aggregates of Fe3O4 particles possessed a BET surface area of ca. 141.1 m2 g-1 without compromising that of the separated Fe 3O4 nanoparticles with coating (164.6 m2 g -1) and still possessed magnetic properties. This method is very meaningful because it directly produces water-soluble magnetic nanoparticles, which is very important for applications of magnetic nanoparticles in biomedical fields and nanostructured spherical aggregates as magnetic carriers.

UR - https://www.scopus.com/pages/publications/34547937312

U2 - 10.1021/cm070918q

DO - 10.1021/cm070918q

M3 - Article

AN - SCOPUS:34547937312

SN - 0897-4756

VL - 19

SP - 4087

EP - 4091

JO - Chemistry of Materials

JF - Chemistry of Materials

IS - 16

ER -

Facile fabrication of water-soluble magnetic nanoparticles and their spherical aggregates

Abstract

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