Results 221 to 230 of about 18,497 (256)
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Watching Single Gold Nanorods Grow
Small, 2012The consecutive evolution process of single gold nanorods is monitored using atomic force microscopy (AFM). The single-crystal gold nanorods investigated are grown directly on surfaces to which gold seed particles are covalently linked. The growth kinetics for single nanorods is derived from the 3D information recorded by AFM. A better understanding of
Zhongqing, Wei +7 more
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pH-Triggered Assembly of Gold Nanorods
Langmuir, 2005The self-assembly of surfactant-protected gold nanorods (aspect ratio 3.3 +/- 0.3, 20.6 +/- 5.5 nm width, and 67.5 +/- 9.0 nm length) into ordered structures using adipic acid is presented. As made, the gold nanorods are coated with cationic surfactant, which gives them a net positive charge in aqueous solution. The pH-dependent assembly is directed by
Christopher J, Orendorff +2 more
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Multiplex Biosensor Using Gold Nanorods
Analytical Chemistry, 2006Gold nanorods (GNRs) with different aspect ratios were fabricated through seed-mediated growth and surface activation by alkanethiols for the attachment of antibodies to yield gold nanorod molecular probes (GNrMPs). Multiplex sensing was demonstrated by the distinct response of the plasmon spectra of the GNrMPs to binding events of three targets (goat ...
Chenxu, Yu, Joseph, Irudayaraj
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Stability of Crystal Facets in Gold Nanorods
Nano Letters, 2015Metal nanocrystals can be grown in a variety of shapes through the modification of surface facet energies via surfactants. However, the surface facets are only a few atoms wide, making it extremely challenging to measure their geometries and energies.
Hadas, Katz-Boon +5 more
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Electrochemical Charging of Single Gold Nanorods
Journal of the American Chemical Society, 2009Metal nanocrystals are commonly used to mediate important chemical reactions such as water splitting and CO oxidation. To investigate such redox reactions in detail, it would be useful to be able to carry out electrochemistry on single metal nanocrystals.
Carolina, Novo +3 more
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Gold nanorods: Synthesis, characterization and applications
Coordination Chemistry Reviews, 2005Abstract This article provides an overview of current research into the synthesis and properties of gold nanorods. Interest in rod-shaped nanoparticles stems from their unique optical properties, which can be approximated by Mie–Gans theory. We begin by outlining briefly the origin of the shape-dependent optical properties of rods.
Jorge Pérez-Juste +3 more
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Study on selective oxidations of gold nanorod and mesoporous silica-coated gold nanorod
Journal of Materials Science, 2019The structural control-based manipulation of the anisotropic surface plasmon resonance (SPR) property of gold nanorod (AuNR) is significant and has wide application value in many fields. In this work, the quantitative studies of the ends-selective oxidations of AuNR and silica-coated AuNR using chloroauric acid as a oxidant were carried out.
Zihua Wu +7 more
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Spectroscopic Photoacoustic Imaging of Gold Nanorods
2017Photoacoustic imaging is a rapidly developing tool capable of achieving high-resolution images with optical contrast at imaging depths up to a few centimeters. When combined with targeted nanoparticle contrast agents, sensitive detection of molecular signatures is possible.
Austin Van, Namen, Geoffrey P, Luke
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