Gold‐loading magnetic core–shell organic/inorganic nanocomposites: facile preparation and multiple properties. (17th June 2014)
- Record Type:
- Journal Article
- Title:
- Gold‐loading magnetic core–shell organic/inorganic nanocomposites: facile preparation and multiple properties. (17th June 2014)
- Main Title:
- Gold‐loading magnetic core–shell organic/inorganic nanocomposites: facile preparation and multiple properties
- Authors:
- Chen, Lingnan
Zeng, Birong
Wu, Yueguang
Xie, Jianjie
Yu, Shirong
Yuan, Conghui
Luo, Weiang
Xu, Yiting
Dai, Lizong - Abstract:
- <abstract abstract-type="main"> <title> <x xml:space="preserve">Abstract</x> </title> <p>Magnetic composite nanospheres (MCS) were first prepared via mini‐emulsion polymerization. Subsequently, the hybrid core–shell nanospheres were used as carriers to support gold nanoparticles. The as‐prepared gold‐loading magnetic composite nanospheres (Au‐MCS) had a hydrophobic core embed with <italic>γ</italic>‐Fe<sub>3</sub>O<sub>4</sub> and a hydrophilic shell loaded by gold nanoparticles. Both the content of <italic>γ</italic>‐Fe<sub>3</sub>O<sub>4</sub> and the size of gold nanoparticles could be controlled in our experiments, which resulted in fabricating various materials. On one hand, the Au‐MCS could be used as a <italic>T</italic><sub>2</sub> contrast agent with a relaxivity coefficient of 362 mg<sup>−1</sup> ml S<sup>−1</sup> for magnetic resonance imaging. On the other hand, the Au‐MCS exhibited tunable optical‐absorption property over a wavelength range from 530 nm to 800 nm, which attributed to a secondary growth of gold nanoparticles. In addition, dynamic light scattering results of particle sizing and Zeta potential measurements revealed that Au‐MCS had a good stability in an aqueous solution, which would be helpful for further applications. Finally, it showed that the Au‐MCS were efficient catalysts for reductions of hydrophobic nitrobenzene and hydrophilic 4‐nitrophenol that could be reused by a magnetic separation process. Copyright © 2014 John Wiley &amp; Sons,<abstract abstract-type="main"> <title> <x xml:space="preserve">Abstract</x> </title> <p>Magnetic composite nanospheres (MCS) were first prepared via mini‐emulsion polymerization. Subsequently, the hybrid core–shell nanospheres were used as carriers to support gold nanoparticles. The as‐prepared gold‐loading magnetic composite nanospheres (Au‐MCS) had a hydrophobic core embed with <italic>γ</italic>‐Fe<sub>3</sub>O<sub>4</sub> and a hydrophilic shell loaded by gold nanoparticles. Both the content of <italic>γ</italic>‐Fe<sub>3</sub>O<sub>4</sub> and the size of gold nanoparticles could be controlled in our experiments, which resulted in fabricating various materials. On one hand, the Au‐MCS could be used as a <italic>T</italic><sub>2</sub> contrast agent with a relaxivity coefficient of 362 mg<sup>−1</sup> ml S<sup>−1</sup> for magnetic resonance imaging. On the other hand, the Au‐MCS exhibited tunable optical‐absorption property over a wavelength range from 530 nm to 800 nm, which attributed to a secondary growth of gold nanoparticles. In addition, dynamic light scattering results of particle sizing and Zeta potential measurements revealed that Au‐MCS had a good stability in an aqueous solution, which would be helpful for further applications. Finally, it showed that the Au‐MCS were efficient catalysts for reductions of hydrophobic nitrobenzene and hydrophilic 4‐nitrophenol that could be reused by a magnetic separation process. Copyright © 2014 John Wiley &amp; Sons, Ltd.</p> </abstract> … (more)
- Is Part Of:
- Polymers for advanced technologies. Volume 25:Number 9(2014:Sep.)
- Journal:
- Polymers for advanced technologies
- Issue:
- Volume 25:Number 9(2014:Sep.)
- Issue Display:
- Volume 25, Issue 9 (2014)
- Year:
- 2014
- Volume:
- 25
- Issue:
- 9
- Issue Sort Value:
- 2014-0025-0009-0000
- Page Start:
- 1069
- Page End:
- 1076
- Publication Date:
- 2014-06-17
- Subjects:
- Polymers -- Periodicals
668.9 - Journal URLs:
- http://onlinelibrary.wiley.com/ ↗
- DOI:
- 10.1002/pat.3352 ↗
- Languages:
- English
- ISSNs:
- 1042-7147
- Deposit Type:
- Legaldeposit
- View Content:
- Available online (eLD content is only available in our Reading Rooms) ↗
- Physical Locations:
- British Library DSC - 6547.742200
British Library DSC - BLDSS-3PM
British Library STI - ELD Digital store - Ingest File:
- 3447.xml