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题名:
Novel bio-nanochip based on localized surface plasmon resonance spectroscopy of rhombic nanoparticles
作者: Zhu, Shaoli2; Li, Fei2; Du, Chunlei2; Fu, Yongqi1
刊名: NANOMEDICINE
出版日期: 2008-10-01
卷号: 3, 期号:5, 页码:669-677
关键词: Ag particles ; bio-sensing ; DDA ; LSPR ; rhombic nanopaticle array
文章类型: Article
英文摘要: A new silver (Ag) nanostructure with a rectangular distribution array composed of rhombic nanoparticles is described here. The structure has an apparent advantage of strong hot spots that have a much higher signal intensity than that of the previously reported traditional triangular structures. It generates a great enhancement of a localized surface plasmon resonance (LSPR) effect. Moreover, an antigen with longer arm length is applied to strengthen the binding signals of both the antigen and antibody. We performed experiments for the LSPR-induced extinction spectra in each step of the surface modification of the Ag nanoparticles in atmosphere environment. A spectrophotometer was used to measure the extinction spectrum of our proposed nanochip. The results obtained indicate a better sensitivity for our current nanochip than that of the other reported LSPR-based nanochips. Theoretical computational numerical simulation is also carried out with a discrete dipole approximation algorithm. Our computational results are in agreement with the corresponding experimental spectrum. This type of nanochip may have potential utility in many applications, including medical science, biological fields and
WOS标题词: Science & Technology ; Life Sciences & Biomedicine
类目[WOS]: Biotechnology & Applied Microbiology ; Nanoscience & Nanotechnology
研究领域[WOS]: Biotechnology & Applied Microbiology ; Science & Technology - Other Topics
关键词[WOS]: NOBLE-METAL NANOPARTICLES ; DISCRETE-DIPOLE APPROXIMATION ; NANOSCALE OPTICAL BIOSENSOR ; SILVER NANOPARTICLES ; NANOSPHERE LITHOGRAPHY ; ELECTRODYNAMICS ; DEPENDENCE ; MONOLAYERS ; SPECTRUM ; GOLD
收录类别: SCI
语种: 英语
WOS记录号: WOS:000260291400014
Citation statistics:
内容类型: 期刊论文
URI标识: http://ir.ioe.ac.cn/handle/181551/3637
Appears in Collections:光电技术研究所被WoS收录文章_期刊论文

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作者单位: 1.Univ Elect Sci & Technol China, Sch Phys Elect, Chengdu 610209, Sichuan, Peoples R China
2.Chinese Acad Sci, Inst Opt & Elect, Chengdu 610209, Sichuan, Peoples R China

Recommended Citation:
Zhu, Shaoli,Li, Fei,Du, Chunlei,et al. Novel bio-nanochip based on localized surface plasmon resonance spectroscopy of rhombic nanoparticles[J]. NANOMEDICINE,2008,3(5):669-677.
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