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文章名     作者     期刊名     摘要     卷     期         如果没有找到您所需要的文献，请点击 ——此处申请     共107条记录   Spatially Resolved DNA Brushes on a Chip: Gene Activation by Enzymatic Cascade [作者：Bar, M; Bar-Ziv, RH,期刊：Nano Letters, 页码：4462-4466 , 文章类型： Article，,卷期：2009年9-12] We assemble on a chip spatially resolved DNA polymer brushes with density that can be controlled along continuous gradients, from dilute to dense packing, with 20-30 nm between DNA molecules. Investigation of DNA digesti... Fate of Excitations in Conjugated Polymers: Single-Molecule Spectroscopy Reveals Nonemissive "Dark" Regions in MEH-PPV Individual Chains [作者：Lin, HZ; Tian, YX; Zapadka, K; Persson, G; Thomsson, D; Mirzov, O; Larsson, PO; Widengren, J; Scheblykin, IG,期刊：Nano Letters, 页码：4456-4461 , 文章类型： Article，,卷期：2009年9-12] Single chains of the conjugated polymer MEH-PPV (poly(2-methoxy-5-(2'-ethylhexyloxy)-1,4-phenylenevinylene)) were studied with wide-field fluorescence microscopy (dispersion in inert polymer matrices) and with fluorescen... A Highly Effective, Nontoxic T-1 MR Contrast Agent Based on Ultrasmall PEGylated Iron Oxide Nanoparticles [作者：Tromsdorf, UI; Bruns, OT; Salmen, SC; Beisiegel, U; Weller, H,期刊：Nano Letters, 页码：4434-4440 , 文章类型： Article，,卷期：2009年9-12] In this study we systematically developed a potential MR T-1 contrast agent based on very small PEGylated iron oxide nanoparticles. We adjusted the size of the crystalline core providing suitable relaxometric properties.... Scanning Tunneling Microscopy Characterization of the Electrical Properties of Wrinkles in Exfoliated Graphene Monolayers [作者：Xu, K; Cao, PG; Heath, JR,期刊：Nano Letters, 页码：4446-4451 , 文章类型： Article，,卷期：2009年9-12] We report on the scanning tunneling microscopy study of a new class of corrugations in exfoliated monolayer graphene sheets, that is, wrinkles similar to 10 nm in width and similar to 3 nm in height. We found such corrug... Fabrication and Electrical Properties of Si Nanowires Synthesized by Al Catalyzed Vapor-Liquid-Solid Growth [作者：Ke, Y; Weng, XJ; Redwing, JM; Eichfeld, CM; Swisher, TR; Mohney, SE; Habib, YM,期刊：Nano Letters, 页码：4494-4499 , 文章类型： Article，,卷期：2009年9-12] The synthesis of epitaxially oriented Si nanowires at high growth rates (> 1 mu m/min) was demonstrated on (111) Si substrates using Al as the catalyst. The use of high H-2 and SiH4 partial pressures was found to be effe... Electrophoretic Force on a Protein-Coated DNA Molecule in a Solid-State Nanopore [作者：Hall, AR; van Dorp, S; Lemay, SG; Dekker, C,期刊：Nano Letters, 页码：4441-4445 , 文章类型： Article，,卷期：2009年9-12] Using solid-state nanopores with optical tweezers, we perform force spectroscopy on DNA molecules that are coated with RecA proteins. We observe that the electrophoretic force is 2-4 times larger for RecA-DNA filaments t... Refractometric Sensing Using Propagating versus Localized Surface Plasmons: A Direct Comparison [作者：Svedendahl, M; Chen, S; Dmitriev, A; Kall, M,期刊：Nano Letters, 页码：4428-4433 , 文章类型： Article，,卷期：2009年9-12] We present a direct experimental comparison between the refractive index sensing capabilities of localized surface plasmon resonances (LSPRs) in gold nanodisks and propagating surface plasmon resonances (SPRs) on 50 nm g... Synthesis and Thermally Reversible Assembly of DNA-Gold Nanoparticle Cluster Conjugates [作者：Kim, JY; Lee, JS,期刊：Nano Letters, 页码：4564-4569 , 文章类型： Article，,卷期：2009年9-12] We describe the facile synthesis of stable gold nanoparticle clusters densely functionalized with DNA (DNA-AuNP clusters) using dithiothreitol and monothiol DNA and their thermally reversible assembly properties. The siz... Tuning the Electronic Coupling and Magnetic Moment of a Metal Nanoparticle Dimer in the Nonlinear Dielectric-Response Regime [作者：Troparevsky, MC; Zhao, K; Xiao, D; Zhang, ZY; Eguiluz, AG,期刊：Nano Letters, 页码：4452-4455 , 文章类型： Article，,卷期：2009年9-12] We show that the electronic coupling and magnetic moment of a silver nanoparticle dimer can be readily tuned by applying an electric field in the nonlinear dielectric-response regime. For a given interparticle separation... Metal-Driven Hierarchical Self-Assembled One-Dimensional Nanohelices [作者：Qiao, Y; Lin, YY; Wang, YJ; Yang, ZY; Liu, J; Zhou, J; Yan, Y; Huang, JB,期刊：Nano Letters, 页码：4500-4504 , 文章类型： Article，,卷期：2009年9-12] Sophisticated helical structure has been an attractive subject due to its significance in understanding of biological self-assembly and appealing application in nanoscience. In this work, a facile route toward one-dimens... Manipulating Nanoscale Light Fields with the Asymmetric Bowtie Nano-Colorsorter [作者：Zhang, Z; Weber-Bargioni, A; Wu, SW; Dhuey, S; Cabrini, S; Schuck, PJ,期刊：Nano Letters, 页码：4505-4509 , 文章类型： Article，,卷期：2009年9-12] We present a class of devices called Asymmetric Bowtie nano-Colorsorters. These devices are specifically engineered to not only capture and confine optical fields, but also to spectrally filter and steer them while maint... pH-Stimulated Concurrent Mechanical Activation of Two DNA "Tweezers". A "SET-RESET" Logic Gate System [作者：Elbaz, J; Wang, ZG; Orbach, R; Willner, I,期刊：Nano Letters, 页码：4510-4514 , 文章类型： Article，,卷期：2009年9-12] A DNA tweezer consisting of C-rich arms is kept in the "closed" form by hybridization of the arms with a nucleic acid cross-linker. At acidic pH (pH = 5.2), the arms are stabilized through the formation of the i-motif, C... Direct Coupling of Plasmonic and Photonic Nanowires for Hybrid Nanophotonic Components and Circuits [作者：Guo, X; Qiu, M; Bao, JM; Wiley, BJ; Yang, Q; Zhang, XN; Ma, YG; Yu, HK; Tong, LM,期刊：Nano Letters, 页码：4515-4519 , 文章类型： Article，,卷期：2009年9-12] We report direct coupling of plasmonic and photonic nanowires using ultracompact near-field interaction. Photon-plasmon coupling efficiency up to 80% with coupling length down to the 200 nm level is achieved between indi... Supramolecular Protein Cage Composite MR Contrast Agents with Extremely Efficient Relaxivity Properties [作者：Liepold, LO; Abedin, MJ; Buckhouse, ED; Frank, JA; Young, MJ; Douglas, T,期刊：Nano Letters, 页码：4520-4526 , 文章类型： Article，,卷期：2009年9-12] A DTPA-Gd containing polymer was grown in the interior of a heat shock protein cage resulting in T-1 particle relaxivities of 4200 mM(-1) sec(-1) for the 12 nm particle. Relaxivity parameters were determined, and this an... Direct Correlation of Structural Domain Formation with the Metal Insulator Transition in a VO2 Nanobeam [作者：Zhang, SX; Chou, JY; Lauhon, LJ,期刊：Nano Letters, 页码：4527-4532 , 文章类型： Article，,卷期：2009年9-12] The electrical resistance of single VO2 nanobeams was measured while simultaneously mapping the domain structure with Raman spectroscopy to investigate the relationship between structural domain formation and the metal-i... Protein Nanocapsule Weaved with Enzymatically Degradable Polymeric Network [作者：Gu, Z; Yan, M; Hu, BL; Joo, KI; Biswas, A; Huang, Y; Lu, YF; Wang, P; Tang, Y,期刊：Nano Letters, 页码：4533-4538 , 文章类型： Article，,卷期：2009年9-12] Target proteins can be functionally encapsulated using a cocoon-like polymeric nanocapsule formed by interfacial polymerization. The nanocapsule is cross-linked by peptides that can be proteolyzed by proteases upon which...