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	Dna-network-templated self-assembly of silver nanoparticles and their application in surface-enhanced raman scattering
	Wei, G; Wang, L; Liu, ZG; Song, YH; Sun, LL; Yang, T; Li, ZA
刊名	Journal of physical chemistry b
	2005-12-22
卷号	109期号:50页码:23941-23947
ISSN号	1520-6106
DOI	10.1021/jp054752x
通讯作者	Li, za()
英文摘要	A large-scale a-dna network on a mica surface was successfully fabricated with a simple method. silver nanoparticles capped with the cationic surfactant cetyltrimethylammonium bromide (ctab) were self-assembled onto a two-dimensional dna network template by electrostatic interaction and formed nanoporous silver films, which can be used as active surface-enhanced raman scattering (sers) substrates. two probe molecules, rhodamine 6g (r6g) and 4-aminothiophenol (4-atp), were studied on these substrates with very low concentrations, and great enhancement factors for r6g (0.21 x 10(10)-4.09 x 10(11)) and 4-atp (similar to 1.70 x 10(5)) were observed. it was found that the enhancement ability was affected by the dna concentration and the electrostatic absorption time of the ctab-stabilized silver nanoparticles on the dna strands. these sers substrates formed by the self-assembly of silver nanoparticles on dna network also show good stability and reproducibility in our experiments.
WOS关键词	ATOMIC-FORCE MICROSCOPY ; LARGE AG NANOCRYSTALS ; DEOXYRIBONUCLEIC-ACID ; ROOM-TEMPERATURE ; COLLOIDAL SILVER ; RHODAMINE 6G ; SPECTROSCOPY ; SERS ; GOLD ; ELECTRODE
WOS研究方向	Chemistry
WOS类目	Chemistry, Physical
语种	英语
出版者	AMER CHEMICAL SOC
WOS记录号	WOS:000234119100025
内容类型	期刊论文
URI标识	http://www.corc.org.cn/handle/1471x/2378102
专题	中国科学院大学
通讯作者	Li, ZA
作者单位	Chinese Acad Sci, Grad Sch, Changchun Inst Appl Chem, State Key Lab Electroanalyt Chem, Changchun 130022, Peoples R China
推荐引用方式 GB/T 7714	Wei, G,Wang, L,Liu, ZG,et al. Dna-network-templated self-assembly of silver nanoparticles and their application in surface-enhanced raman scattering[J]. Journal of physical chemistry b,2005,109(50):23941-23947.
APA	Wei, G.,Wang, L.,Liu, ZG.,Song, YH.,Sun, LL.,...&Li, ZA.(2005).Dna-network-templated self-assembly of silver nanoparticles and their application in surface-enhanced raman scattering.Journal of physical chemistry b,109(50),23941-23947.
MLA	Wei, G,et al."Dna-network-templated self-assembly of silver nanoparticles and their application in surface-enhanced raman scattering".Journal of physical chemistry b 109.50(2005):23941-23947.

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