Facile synthesis of size-controllable monodispersed ferrite nanospheres
被引:202
作者:
Xuan, Shouhu
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Chinese Univ Hong Kong, Dept Chem, Ctr Novel Funct Mol, Shatin, Hong Kong, Peoples R ChinaChinese Univ Hong Kong, Dept Chem, Ctr Novel Funct Mol, Shatin, Hong Kong, Peoples R China
Xuan, Shouhu
[1
]
Wang, Feng
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Chinese Univ Hong Kong, Dept Chem, Ctr Novel Funct Mol, Shatin, Hong Kong, Peoples R ChinaChinese Univ Hong Kong, Dept Chem, Ctr Novel Funct Mol, Shatin, Hong Kong, Peoples R China
Wang, Feng
[1
]
Wang, Yi-Xiang J.
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Chinese Univ Hong Kong, Prince Wales Hosp, Dept Diagnost Radiol & Organ Imaging, Shatin, Hong Kong, Peoples R ChinaChinese Univ Hong Kong, Dept Chem, Ctr Novel Funct Mol, Shatin, Hong Kong, Peoples R China
Wang, Yi-Xiang J.
[2
]
Yu, Jimmy C.
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Chinese Univ Hong Kong, Dept Chem, Ctr Novel Funct Mol, Shatin, Hong Kong, Peoples R ChinaChinese Univ Hong Kong, Dept Chem, Ctr Novel Funct Mol, Shatin, Hong Kong, Peoples R China
Yu, Jimmy C.
[1
]
Leung, Ken Cham-Fai
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Chinese Univ Hong Kong, Dept Chem, Ctr Novel Funct Mol, Shatin, Hong Kong, Peoples R ChinaChinese Univ Hong Kong, Dept Chem, Ctr Novel Funct Mol, Shatin, Hong Kong, Peoples R China
Leung, Ken Cham-Fai
[1
]
机构:
[1] Chinese Univ Hong Kong, Dept Chem, Ctr Novel Funct Mol, Shatin, Hong Kong, Peoples R China
[2] Chinese Univ Hong Kong, Prince Wales Hosp, Dept Diagnost Radiol & Organ Imaging, Shatin, Hong Kong, Peoples R China
Monodispersed ferrite nanospheres were synthesized in an ethylene glycol/diethylene glycol (EG/DEG) binary solvent by using poly(vinylpyrrolidone) (PVP) as the surfactant. Particle size control can be attained by careful adjustment of the V(EG)/V(DEG) ratio. Different from previous reports, the magnetic studies of our iron ferrite (Fe(3)O(4)) nanospheres with various sizes from 20 to 300 nm reveal that they exhibit a similar magnetic saturation (M(s)) value. In particular, both the ferromagnetic and superparamagnetic Fe(3)O(4) nanospheres with similar M(s) can be selectively obtained by varying the H(2)O concentration in the reaction system. The magnetic resonance imaging (MRI) characterization indicates that the as-prepared superparamagnetic Fe(3)O(4) and ZnFe(2)O(4) nanospheres possess a T(2) relaxivity range that can be used as potential MRI contrast agents.
机构:Chinese Acad Sci, Shanghai Inst Ceram, State Key Lab High Performance Ceram & Superfine, Shanghai 200050, Peoples R China
Cao, Shao-Wen
;
Zhu, Ying-Jie
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Chinese Acad Sci, Shanghai Inst Ceram, State Key Lab High Performance Ceram & Superfine, Shanghai 200050, Peoples R ChinaChinese Acad Sci, Shanghai Inst Ceram, State Key Lab High Performance Ceram & Superfine, Shanghai 200050, Peoples R China
Zhu, Ying-Jie
;
Chang, Jiang
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机构:Chinese Acad Sci, Shanghai Inst Ceram, State Key Lab High Performance Ceram & Superfine, Shanghai 200050, Peoples R China
机构:
Chinese Univ Hong Kong, Dept Chem, Ctr Novel Funct Mol, Shatin, Hong Kong, Peoples R ChinaChinese Univ Hong Kong, Dept Chem, Ctr Novel Funct Mol, Shatin, Hong Kong, Peoples R China
Chak, Chun-Pong
;
Xuan, Shouhu
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Chinese Univ Hong Kong, Dept Chem, Ctr Novel Funct Mol, Shatin, Hong Kong, Peoples R ChinaChinese Univ Hong Kong, Dept Chem, Ctr Novel Funct Mol, Shatin, Hong Kong, Peoples R China
Xuan, Shouhu
;
Mendes, Paula M.
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机构:
Univ Birmingham, Sch Chem Engn, Coll Engn & Phys Sci, Birmingham B15 2TT, W Midlands, EnglandChinese Univ Hong Kong, Dept Chem, Ctr Novel Funct Mol, Shatin, Hong Kong, Peoples R China
Mendes, Paula M.
;
Yu, Jimmy C.
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Chinese Univ Hong Kong, Dept Chem, Ctr Novel Funct Mol, Shatin, Hong Kong, Peoples R ChinaChinese Univ Hong Kong, Dept Chem, Ctr Novel Funct Mol, Shatin, Hong Kong, Peoples R China
Yu, Jimmy C.
;
Cheng, Christopher H. K.
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机构:
Chinese Univ Hong Kong, Dept Biochem Med, Shatin, Hong Kong, Peoples R ChinaChinese Univ Hong Kong, Dept Chem, Ctr Novel Funct Mol, Shatin, Hong Kong, Peoples R China
Cheng, Christopher H. K.
;
Leung, Ken Cham-Fai
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机构:
Chinese Univ Hong Kong, Dept Chem, Ctr Novel Funct Mol, Shatin, Hong Kong, Peoples R ChinaChinese Univ Hong Kong, Dept Chem, Ctr Novel Funct Mol, Shatin, Hong Kong, Peoples R China
机构:
Shanghai Jiao Tong Univ, Med X Res Inst, Shanghai 200030, Peoples R ChinaShanghai Jiao Tong Univ, Med X Res Inst, Shanghai 200030, Peoples R China
Cheng, Changming
;
Wen, Yinghui
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机构:
Shanghai Jiao Tong Univ, Med X Res Inst, Shanghai 200030, Peoples R ChinaShanghai Jiao Tong Univ, Med X Res Inst, Shanghai 200030, Peoples R China
Wen, Yinghui
;
Xu, Xuefei
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机构:
Lanzhou Univ, Key Lab Magnetism & Magnet Mat, MOE, Lanzhou, Peoples R ChinaShanghai Jiao Tong Univ, Med X Res Inst, Shanghai 200030, Peoples R China
Xu, Xuefei
;
Gu, Hongchen
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机构:
Shanghai Jiao Tong Univ, Med X Res Inst, Shanghai 200030, Peoples R ChinaShanghai Jiao Tong Univ, Med X Res Inst, Shanghai 200030, Peoples R China
机构:Chinese Acad Sci, Shanghai Inst Ceram, State Key Lab High Performance Ceram & Superfine, Shanghai 200050, Peoples R China
Cao, Shao-Wen
;
Zhu, Ying-Jie
论文数: 0引用数: 0
h-index: 0
机构:
Chinese Acad Sci, Shanghai Inst Ceram, State Key Lab High Performance Ceram & Superfine, Shanghai 200050, Peoples R ChinaChinese Acad Sci, Shanghai Inst Ceram, State Key Lab High Performance Ceram & Superfine, Shanghai 200050, Peoples R China
Zhu, Ying-Jie
;
Chang, Jiang
论文数: 0引用数: 0
h-index: 0
机构:Chinese Acad Sci, Shanghai Inst Ceram, State Key Lab High Performance Ceram & Superfine, Shanghai 200050, Peoples R China
机构:
Chinese Univ Hong Kong, Dept Chem, Ctr Novel Funct Mol, Shatin, Hong Kong, Peoples R ChinaChinese Univ Hong Kong, Dept Chem, Ctr Novel Funct Mol, Shatin, Hong Kong, Peoples R China
Chak, Chun-Pong
;
Xuan, Shouhu
论文数: 0引用数: 0
h-index: 0
机构:
Chinese Univ Hong Kong, Dept Chem, Ctr Novel Funct Mol, Shatin, Hong Kong, Peoples R ChinaChinese Univ Hong Kong, Dept Chem, Ctr Novel Funct Mol, Shatin, Hong Kong, Peoples R China
Xuan, Shouhu
;
Mendes, Paula M.
论文数: 0引用数: 0
h-index: 0
机构:
Univ Birmingham, Sch Chem Engn, Coll Engn & Phys Sci, Birmingham B15 2TT, W Midlands, EnglandChinese Univ Hong Kong, Dept Chem, Ctr Novel Funct Mol, Shatin, Hong Kong, Peoples R China
Mendes, Paula M.
;
Yu, Jimmy C.
论文数: 0引用数: 0
h-index: 0
机构:
Chinese Univ Hong Kong, Dept Chem, Ctr Novel Funct Mol, Shatin, Hong Kong, Peoples R ChinaChinese Univ Hong Kong, Dept Chem, Ctr Novel Funct Mol, Shatin, Hong Kong, Peoples R China
Yu, Jimmy C.
;
Cheng, Christopher H. K.
论文数: 0引用数: 0
h-index: 0
机构:
Chinese Univ Hong Kong, Dept Biochem Med, Shatin, Hong Kong, Peoples R ChinaChinese Univ Hong Kong, Dept Chem, Ctr Novel Funct Mol, Shatin, Hong Kong, Peoples R China
Cheng, Christopher H. K.
;
Leung, Ken Cham-Fai
论文数: 0引用数: 0
h-index: 0
机构:
Chinese Univ Hong Kong, Dept Chem, Ctr Novel Funct Mol, Shatin, Hong Kong, Peoples R ChinaChinese Univ Hong Kong, Dept Chem, Ctr Novel Funct Mol, Shatin, Hong Kong, Peoples R China
机构:
Shanghai Jiao Tong Univ, Med X Res Inst, Shanghai 200030, Peoples R ChinaShanghai Jiao Tong Univ, Med X Res Inst, Shanghai 200030, Peoples R China
Cheng, Changming
;
Wen, Yinghui
论文数: 0引用数: 0
h-index: 0
机构:
Shanghai Jiao Tong Univ, Med X Res Inst, Shanghai 200030, Peoples R ChinaShanghai Jiao Tong Univ, Med X Res Inst, Shanghai 200030, Peoples R China
Wen, Yinghui
;
Xu, Xuefei
论文数: 0引用数: 0
h-index: 0
机构:
Lanzhou Univ, Key Lab Magnetism & Magnet Mat, MOE, Lanzhou, Peoples R ChinaShanghai Jiao Tong Univ, Med X Res Inst, Shanghai 200030, Peoples R China
Xu, Xuefei
;
Gu, Hongchen
论文数: 0引用数: 0
h-index: 0
机构:
Shanghai Jiao Tong Univ, Med X Res Inst, Shanghai 200030, Peoples R ChinaShanghai Jiao Tong Univ, Med X Res Inst, Shanghai 200030, Peoples R China