Structural and optical control of DNA-mediated Janus plasmonic nanostructures

CORC > 上海应用物理研究所 > 中国科学院上海应用物理研究所 > 中科院上海应用物理研究所2011-2017年

	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
刊名	NANOSCALE
	2016
卷号	8 期号:17 页码:9337—9342
关键词	ENHANCED RAMAN-SCATTERING FANO-RESONANCE NANOPARTICLES SURFACE HETERODIMERS NANOSNOWMEN GROWTH PROBES
ISSN号	2040-3364
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.
英文摘要	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.
收录类别	SCI
语种	英语
WOS记录号	WOS:000375285800032
内容类型	期刊论文
源URL	[http://ir.sinap.ac.cn/handle/331007/25839]
专题	上海应用物理研究所_中科院上海应用物理研究所2011-2017年
推荐引用方式 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.