DNA origami based assembly of gold nanoparticle dimers for SERS detection

机译：基于DNA折纸的金纳米粒子二聚体组装体，用于SERS检测

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Plasmonic sensors are extremely promising candidates for label-free single molecule analysis but require exquisite control over the physical arrangement of metallic nanostructures. We employ self-assembly based on the DNA origami technique for accurate positioning of individual 40 nm gold nanoparticles with gaps of 3.3 ± 1 nm. This is probed through far field scattering measurements on individual dimers. This plasmonic coupling allows us to use surface enhanced Raman scattering (SERS) to detect a small number of dye molecules as well as short single-stranded DNA oligonucleotides in the vicinity of the dimers. This demonstrates that DNA origami is a powerful tool with great potential for a wide variety of biosensing and single-molecule applications.

机译：等离子体传感器是无标签单分子分析的极有希望的候选者，但需要对金属纳米结构的物理排列进行精确控制。我们基于DNA折纸技术采用自组装技术，可精确定位间隙为3.3±1 nm的40 nm金纳米颗粒。通过对单个二聚体的远场散射测量可以探测到这一点。这种等离子耦合使我们能够使用表面增强拉曼散射（SERS）来检测二聚体附近的少量染料分子以及短的单链DNA寡核苷酸。这表明DNA折纸是一种功能强大的工具，具有广泛的潜力，可用于各种生物传感和单分子应用。

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《Plasmonics in biology and medicine XII》|2015年|934002.1-934002.8|共8页
会议地点 San Francisco CA(US)
作者
Vivek V. Thacker; Lars O. Herrmann; Daniel O. Sigle; Tao Zhang; Tim Liedl; Jeremy J. Baumberg; Ulrich F. Keyser;
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作者单位

Cavendish Laboratory, JJ Thompson Avenue, Cambridge CB3 0HE, UK;

Cavendish Laboratory, JJ Thompson Avenue, Cambridge CB3 0HE, UK;

Cavendish Laboratory, JJ Thompson Avenue, Cambridge CB3 0HE, UK;

Center for NanoScience and Department of Physics, Ludwig-Maximilians-Universitaet Muenchen, Geschwister-Scholl-Platz 1, 80539 Muenchen, Germany;

Center for NanoScience and Department of Physics, Ludwig-Maximilians-Universitaet Muenchen, Geschwister-Scholl-Platz 1, 80539 Muenchen, Germany;

Cavendish Laboratory, JJ Thompson Avenue, Cambridge CB3 0HE, UK;

Cavendish Laboratory, JJ Thompson Avenue, Cambridge CB3 0HE, UK;

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正文语种 eng
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关键词
DNA origami; Surface-ehanced Raman Scattering; Self-assembly; Nanoplasmonics; Biosensors; Nanoparticles; Dark field Scattering;

机译：DNA折纸;表面增强拉曼散射；自组装；纳米等离子体;生物传感器；纳米颗粒；暗场散射;

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专利

1. DNA origami based assembly of gold nanoparticle dimers for surface-enhanced Raman scattering [J] . Vivek V. Thacker, Lars O. Herrmann, Daniel O. Sigle, Nature Communications . 2014,第2016期

机译：基于DNA折纸的金纳米粒子二聚体组装件，用于表面增强拉曼散射
2. DNA assembly and enzymatic cutting in solutions: A gold nanoparticle based SERS detection strategy [J] . Crew E., Yan H., Lin L., The Analyst: The Analytical Journal of the Royal Society of Chemistry: A Monthly International Publication Dealing with All Branches of Analytical Chemistry . 2013,第17期

机译：溶液中的DNA组装和酶切：基于金纳米粒子的SERS检测策略
3. A Gold-Nanoparticle-Based SERS Reporter that Rolls on DNA Origami Templates [J] . Bing Liu, Shaokang Ren, Yikang Xing ChemNanoMat . 2017,第10期

机译：基于金纳米粒子的SERS记者，滚动DNA折纸模板
4. DNA origami based assembly of gold nanoparticle dimers for SERS detection [C] . Vivek V. Thacker, Lars O. Herrmann, Daniel O. Sigle, Conference on plasmonics in biology and medicine XII . 2015

机译：基于DNA折纸的金纳米粒子二聚体组装，用于SERs检测
5. Gold nanoparticle dimers for SERS-based targeted detection of human glioblastoma cells. [D] . Paladini, Bryan. 2011

机译：金纳米颗粒二聚体，用于基于胶体增强细胞的靶向检测人类胶质母细胞瘤细胞。
6. Heterogeneous Assembly of Quantum Dots and Gold Nanoparticles on DNA Origami Scaffolds [O] . Risheng Wang, Colin Nuckolls, Shalom J. Wind -1

机译：DNA折纸支架上的量子点和金纳米粒子的异质组装
7. DNA origami based assembly of gold nanoparticle dimers for surface-enhanced Raman scattering [O] . Vivek V. Thacker, Lars O. Herrmann, Daniel O. Sigle, 2014

机译：基于DNA折纸的金纳米粒子二聚体组装，用于表面增强拉曼散射

DNA origami based assembly of gold nanoparticle dimers for SERS detection

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