Journal ArticleDOI
Nanostars shine bright for you Colloidal synthesis, properties and applications of branched metallic nanoparticles
TLDR
The main synthetic processes for the fabrication of such branched nanoparticles, often termed as nanostars, as well as some of the principal applications that have been found are described in this article.Abstract:
Research on metal nanoparticles has been boosted by a wide variety of applications that often require a precise definition of the morphological features at the nanometer scale. Although the preparation (often based on colloid chemistry) of metal nanoparticles with many different shapes and sizes has been developed and optimized for spheres, rods, cubes, platelets and other shapes, the last few years have seen a rising interest in branched morphologies. This review article describes the main synthetic processes for the fabrication of such branched nanoparticles, often termed as nanostars, as well as some of the principal applications that have been found. A special emphasis is given to optical properties related to localized surface plasmon resonances and surface enhanced spectroscopies, for which nanostars have been predicted and demonstrated to shine brighter than any other shapes, thus opening new avenues for highly sensitive detection or biolabelling, among other applications.read more
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Journal ArticleDOI
The golden age: gold nanoparticles for biomedicine
TL;DR: It is argued that gold nanotechnology-enabled biomedicine is not simply an act of 'gilding the (nanomedicinal) lily', but that a new 'Golden Age' of biomedical nanotechnology is truly upon us.
Journal ArticleDOI
Present and Future of Surface-Enhanced Raman Scattering
Judith Langer,Dorleta Jimenez de Aberasturi,Javier Aizpurua,Ramon A. Alvarez-Puebla,Baptiste Auguié,Baptiste Auguié,Jeremy J. Baumberg,Guillermo C. Bazan,Steven E. J. Bell,Anja Boisen,Alexandre G. Brolo,Jaebum Choo,Dana Cialla-May,Dana Cialla-May,Volker Deckert,Volker Deckert,Laura Fabris,Karen Faulds,F. Javier García de Abajo,Royston Goodacre,Duncan Graham,Amanda J. Haes,Christy L. Haynes,Christian W. Huck,Tamitake Itoh,Mikael Käll,Janina Kneipp,Nicholas A. Kotov,Hua Kuang,Eric C. Le Ru,Eric C. Le Ru,Hiang Kwee Lee,Jian-Feng Li,Xing Yi Ling,Stefan A. Maier,Thomas G. Mayerhöfer,Thomas G. Mayerhöfer,Martin Moskovits,Kei Murakoshi,Jwa-Min Nam,Shuming Nie,Yukihiro Ozaki,Isabel Pastoriza-Santos,Jorge Pérez-Juste,Juergen Popp,Juergen Popp,Annemarie Pucci,Stephanie Reich,Bin Ren,George C. Schatz,Timur Shegai,Sebastian Schlücker,Li-Lin Tay,K. George Thomas,Zhong-Qun Tian,Richard P. Van Duyne,Tuan Vo-Dinh,Yue Wang,Katherine A. Willets,Chuanlai Xu,Hongxing Xu,Yikai Xu,Yuko S. Yamamoto,Bing Zhao,Luis M. Liz-Marzán +64 more
TL;DR: Prominent authors from all over the world joined efforts to summarize the current state-of-the-art in understanding and using SERS, as well as to propose what can be expected in the near future, in terms of research, applications, and technological development.
Journal ArticleDOI
SERS Tags: Novel Optical Nanoprobes for Bioanalysis
TL;DR: The fundamental theory of Surface-Enhanced Raman Scattering and the development of Multifunctional Nanoplatforms, a next generation of SERS tags, are studied.
Journal ArticleDOI
Gold Nanomaterials at Work in Biomedicine
Journal Article
Mapping surface plasmons on a single metallic nanoparticle
TL;DR: In this paper, the authors used electron beams instead of photons to detect plasmons as resonance peaks in the energy-loss spectra of sub-nanometre electron beams rastered on nanoparticles of well-defined geometrical parameters.
References
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Journal ArticleDOI
Shape-Controlled Synthesis of Gold and Silver Nanoparticles
Yugang Sun,Younan Xia +1 more
TL;DR: Monodisperse samples of silver nanocubes were synthesized in large quantities by reducing silver nitrate with ethylene glycol in the presence of poly(vinyl pyrrolidone) (PVP), characterized by a slightly truncated shape bounded by {100, {110}, and {111} facets.
Journal ArticleDOI
Surface-enhanced spectroscopy
TL;DR: The surface-enhanced Raman scattering (SERS) effect was first discovered by Fleischmann, Van Duyne, Creighton, and Creighton as discussed by the authors, who showed that molecules adsorbed on specially prepared silver surfaces produce a Raman spectrum that is at times a millionfold more intense than expected.
Journal ArticleDOI
Shape‐Controlled Synthesis of Metal Nanocrystals: Simple Chemistry Meets Complex Physics?
TL;DR: A comprehensive review of current research activities that center on the shape-controlled synthesis of metal nanocrystals, including a brief introduction to nucleation and growth within the context of metal Nanocrystal synthesis, followed by a discussion of the possible shapes that aMetal nanocrystal might take under different conditions.
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Preparation and Growth Mechanism of Gold Nanorods (NRs) Using Seed-Mediated Growth Method
TL;DR: In this article, a method was used for preparing gold NRs with aspect ratios ranging from 1.5 to 4.5 for which the surface plasmon absorption maxima are between 600 and 1300 nm.
Journal ArticleDOI
A hybridization model for the plasmon response of complex nanostructures.
TL;DR: A simple and intuitive picture that describes the plasmon response of complex nanostructures of arbitrary shape is presented, an electromagnetic analog of molecular orbital theory, that can be understood as the interaction or "hybridization" of elementary plasmons supported by nanostructure of elementary geometries.