Structural and optical control of DNA-mediated Janus plasmonic nanostructures
Xu, LF; Wang, G; Shen, JL; Geng, HP; Li, WQ; Wu, LL; Gao, SS; Wang, JN; Wang, LH; Fan, CH; Chen, G; Chen, G (reprint author), Chinese Acad Sci, Shanghai Inst Appl Phys, CAS Key Lab Interfacial Phys & Technol, Shanghai Synchrotron Radiat Facil,Div Phys Biol, Shanghai 201204, Peoples R China.; Chen, G (reprint author), ShanghaiTech Univ, Sch Phys Sci & Technol, Shanghai 201210, Peoples R China.
2016
发表期刊NANOSCALE
ISSN2040-3364
卷号8期号:17页码:9337—9342
文章类型期刊文献
摘要The broken symmetry of Janus nanostructures (JNs) provides a distinctive means to express drastically different chemical and physical characters within a single particle and acquire emergent properties usually inconceivable for homogeneous or symmetric nanostructures. In spite of their tremendous application potential, considerable challenges are encountered in identifying pathways to synthesize or assemble JNs with a controllable geometry and morphology. Here, we exploit the reverse process of growth, i.e. silver etching, to quantitatively control the structural and optical properties of the DNA-mediated Au-Ag JNs. The transmission electron microscopy and optical measurements, along with numerical simulations, present a comprehensive view of the etching dynamics and a detailed analysis of the influencing factors that provide handles for regulating the silver etching rate and progress. In addition, a novel type of composite JN is proposed and a model system is designed and engineered through dynamical control of the etching and DNA-hybridization processes.
关键词Enhanced Raman-scattering Fano-resonance Nanoparticles Surface Heterodimers Nanosnowmen Growth Probes
DOI10.1039/c6nr00193a
收录类别SCI
语种英语
WOS记录号WOS:000375285800032
引用统计
文献类型期刊论文
条目标识符http://ir.sinap.ac.cn/handle/331007/25839
专题中科院上海应用物理研究所2011-2018年
通讯作者Fan, CH; Chen, G (reprint author), Chinese Acad Sci, Shanghai Inst Appl Phys, CAS Key Lab Interfacial Phys & Technol, Shanghai Synchrotron Radiat Facil,Div Phys Biol, Shanghai 201204, Peoples R China.; Chen, G (reprint author), ShanghaiTech Univ, Sch Phys Sci & Technol, Shanghai 201210, Peoples R China.
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Xu, LF,Wang, G,Shen, JL,et al. Structural and optical control of DNA-mediated Janus plasmonic nanostructures[J]. NANOSCALE,2016,8(17):9337—9342.
APA Xu, LF.,Wang, G.,Shen, JL.,Geng, HP.,Li, WQ.,...&Chen, G .(2016).Structural and optical control of DNA-mediated Janus plasmonic nanostructures.NANOSCALE,8(17),9337—9342.
MLA Xu, LF,et al."Structural and optical control of DNA-mediated Janus plasmonic nanostructures".NANOSCALE 8.17(2016):9337—9342.
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