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  4. 中科院固体物理研究所
Tailoring Surface Opening of Hollow Nanocubes and Their Application as Nanocargo Carriers

文献类型：期刊论文

作者Lu, Fang1; Xin, Huolin1,7; Xia, Weiwei1; Liu, Mingzhao1; Zhang, Yugang2; Cai, Weiping3,4; Gang, Oleg1,5,6
刊名ACS CENTRAL SCIENCE
出版日期2018-12-26
卷号4期号:12页码:1742-1750
ISSN号2374-7943
DOI10.1021/acscentsci.8b00778
通讯作者Lu, Fang(flu@bnl.gov)
英文摘要Hollow nanoparticles (NPs) are of broad interest for biomedical, optical, and catalytic applications due to their unique geometry-related physicochemical properties. The ability to engineer hollow structures with surface openings is particularly attractive since emergent properties are promised by the design of shell porosity and encapsulation of guest materials. However, it still remains challenging to precisely control the opening of the hollow structure, in terms of shape, size, and location. Here, we report a facile one-step strategy to synthesize a hollow nanostructure with well-defined cubic-shape openings at the corners, by regulating nanoscale galvanic replacement processes with specific surface-capping agents. The final product is a single-crystalline AuAg alloy which morphologically features three "belts" orthogonally wrapping around a virtual cube, denoted by nanowrapper. We demonstrate a structural tunability of our synthetic method for tailoring nanowrapper and the corresponding tuning of its plasmonic band from the visible to near-infrared (NIR) range. Advanced electron tomography techniques provide unambiguous three-dimensional (3D) visualizations to reveal an unconventional transformation pathway of sharp-cornered Ag nanocube to nanowrapper and correlate its structure with measured and computed spectroscopic properties. Importantly, we find that the surfactant, i.e., cetylpyridinium chloride (CPC), is crucial for the openings to be localized at the corners of the hollow cube and be tailored to a cubic shape in our one-step process. Furthermore, such a well-defined hollow architecture also allows a guest nano-object to be contained within, while the large openings at corners enable controlled loading/release of nanoscale cargo, a DNA-coated particle, using change of ionic conditions. This work expands our understanding of surface engineering in nanoscale galvanic replacement reactions and opens new ways toward the shape control of hollow NPs.
WOS关键词GOLD NANOCAGES ; GALVANIC REPLACEMENT ; CONTROLLED-RELEASE ; NANOPARTICLES ; NANOSTRUCTURES ; NANOFRAMES ; ROUTE ; NANOBOXES ; DESIGN ; GROWTH
资助项目U.S. Department of Energy, Office of Basic Energy Sciences[DE-SC0012704] ; Natural Science Foundation of China[51531006] ; Natural Science Foundation of China[11574313]
WOS研究方向Chemistry
语种英语
出版者AMER CHEMICAL SOC
WOS记录号WOS:000454341700016
资助机构U.S. Department of Energy, Office of Basic Energy Sciences ; U.S. Department of Energy, Office of Basic Energy Sciences ; U.S. Department of Energy, Office of Basic Energy Sciences ; U.S. Department of Energy, Office of Basic Energy Sciences ; Natural Science Foundation of China ; Natural Science Foundation of China ; Natural Science Foundation of China ; Natural Science Foundation of China ; U.S. Department of Energy, Office of Basic Energy Sciences ; U.S. Department of Energy, Office of Basic Energy Sciences ; U.S. Department of Energy, Office of Basic Energy Sciences ; U.S. Department of Energy, Office of Basic Energy Sciences ; Natural Science Foundation of China ; Natural Science Foundation of China ; Natural Science Foundation of China ; Natural Science Foundation of China ; U.S. Department of Energy, Office of Basic Energy Sciences ; U.S. Department of Energy, Office of Basic Energy Sciences ; U.S. Department of Energy, Office of Basic Energy Sciences ; U.S. Department of Energy, Office of Basic Energy Sciences ; Natural Science Foundation of China ; Natural Science Foundation of China ; Natural Science Foundation of China ; Natural Science Foundation of China ; U.S. Department of Energy, Office of Basic Energy Sciences ; U.S. Department of Energy, Office of Basic Energy Sciences ; U.S. Department of Energy, Office of Basic Energy Sciences ; U.S. Department of Energy, Office of Basic Energy Sciences ; Natural Science Foundation of China ; Natural Science Foundation of China ; Natural Science Foundation of China ; Natural Science Foundation of China
源URL[http://ir.hfcas.ac.cn:8080/handle/334002/41193]  
专题合肥物质科学研究院_中科院固体物理研究所
通讯作者Lu, Fang
作者单位1.Brookhaven Natl Lab, Ctr Funct Nanomate, Energy & Photon Sci Directorate, Upton, NY 11973 USA
2.Brookhaven Natl Lab, Natl Synchrotron Light Source 2, Energy & Photon Sci Directorate, Upton, NY 11973 USA
3.Chinese Acad Sci, Inst Solid State Phys, Anhui Key Lab Nanomat & Nanotechnol, Key Lab Mat Phys, Hefei 230031, Anhui, Peoples R China
4.Univ Sci & Technol China, Dept Mat Sci & Engn, Hefei 230026, Anhui, Peoples R China
5.Columbia Univ, Dept Chem Engn, New York, NY 10027 USA
6.Columbia Univ, Dept Appl Phys & Appl Math, New York, NY 10027 USA
7.Univ Calif Irvine, Dept Phys & Astron, Irvine, CA 92697 USA
推荐引用方式
GB/T 7714		 Lu, Fang,Xin, Huolin,Xia, Weiwei,et al. Tailoring Surface Opening of Hollow Nanocubes and Their Application as Nanocargo Carriers[J]. ACS CENTRAL SCIENCE,2018,4(12):1742-1750.
APA Lu, Fang.,Xin, Huolin.,Xia, Weiwei.,Liu, Mingzhao.,Zhang, Yugang.,...&Gang, Oleg.(2018).Tailoring Surface Opening of Hollow Nanocubes and Their Application as Nanocargo Carriers.ACS CENTRAL SCIENCE,4(12),1742-1750.
MLA Lu, Fang,et al."Tailoring Surface Opening of Hollow Nanocubes and Their Application as Nanocargo Carriers".ACS CENTRAL SCIENCE 4.12(2018):1742-1750.

入库方式： OAI收割

来源：合肥物质科学研究院

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