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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
Source PublicationNANOSCALE
ISSN2040-3364
Volume8Issue:17Pages:9337—9342
Subtype期刊文献
AbstractThe 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.
KeywordEnhanced Raman-scattering Fano-resonance Nanoparticles Surface Heterodimers Nanosnowmen Growth Probes
DOI10.1039/c6nr00193a
Indexed BySCI
Language英语
WOS IDWOS:000375285800032
Citation statistics
Document Type期刊论文
Identifierhttp://ir.sinap.ac.cn/handle/331007/25839
Collection中科院上海应用物理研究所2011-2018年
Corresponding AuthorFan, 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.
Recommended Citation
GB/T 7714
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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