Journal
LANGMUIR
Volume 28, Issue 16, Pages 6520-6526Publisher
AMER CHEMICAL SOC
DOI: 10.1021/la300212d
Keywords
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Funding
- National Natural Science Foundation of China (NSFC) [20903021, 81100625]
- National Basic Research Program of China [2011CB933503]
- US-China international S & T cooperation project [2009DFA31990]
- Research Fund for the Doctoral Program of Higher Education of China [20090092120036]
- Natural Science Foundation of Jiangsu Province [BK2011590]
- Chinese Education Ministry
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Gold nanoshells currently attract increasing research interests due to the important role in many subjects. For practical applications, random arrangement of the nanoparticles is often unfavored so that the assembly of gold nanoshells is becoming a central issue. We here proposed to utilize time-variant magnetic field to direct the assembly of gold nanoshells. It was discovered that the alternating magnetic field can mediate the vortex-like assembly of gold nanoshells. The mechanism was explored and thought to be relative with the electric field of induction which caused the thermal gradient on the substrate and the electric force. The vortexlike structure as well as the assembly mechanism will play an important role in research and application of gold nanomaterials.
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