期刊
NANO LETTERS
卷 12, 期 8, 页码 4060-4064出版社
AMER CHEMICAL SOC
DOI: 10.1021/nl301452x
关键词
Centrifugation; nanoparticles; separation; polymers; multiphase systems
类别
资金
- Bill and Melinda Gates Foundation [OPP1016360]
- Department of Energy [DE-SC0000989]
- National Science Foundation [ECS-0335765]
- FP7 People program under the project Marie Curie [IOF-275148]
- Office of Naval Research through the NDSEG fellowship program
- Bill and Melinda Gates Foundation [OPP1016360] Funding Source: Bill and Melinda Gates Foundation
This paper demonstrates the use of aqueous multiphase systems (MuPSs) as media for rate-zonal centrifugation to separate nanoparticles of different shapes and sizes. The properties of MuPSs do not change with time or during centrifugation; this stability facilitates sample collection after separation. A three-phase system demonstrates the separation of the reaction products (nanorods, nanospheres, and large particles) of a synthesis of gold nanorods, and enriches the nanorods from 48 to 99% in less than ten minutes using a benchtop centrifuge.
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