Journal ArticleDOI
Atomically Precise Colloidal Metal Nanoclusters and Nanoparticles: Fundamentals and Opportunities
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This review summarizes the major progress in the field, including the principles that permit atomically precise synthesis, new types of atomic structures, and unique physical and chemical properties ofatomically precise nanoparticles, as well as exciting opportunities for nanochemists to understand very fundamental science of colloidal nanoparticles.Abstract:
Colloidal nanoparticles are being intensely pursued in current nanoscience research. Nanochemists are often frustrated by the well-known fact that no two nanoparticles are the same, which precludes the deep understanding of many fundamental properties of colloidal nanoparticles in which the total structures (core plus surface) must be known. Therefore, controlling nanoparticles with atomic precision and solving their total structures have long been major dreams for nanochemists. Recently, these goals are partially fulfilled in the case of gold nanoparticles, at least in the ultrasmall size regime (1–3 nm in diameter, often called nanoclusters). This review summarizes the major progress in the field, including the principles that permit atomically precise synthesis, new types of atomic structures, and unique physical and chemical properties of atomically precise nanoparticles, as well as exciting opportunities for nanochemists to understand very fundamental science of colloidal nanoparticles (such as the s...read more
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Atomically Precise Clusters of Noble Metals: Emerging Link between Atoms and Nanoparticles
TL;DR: Luminescence in the visible region, especially by clusters protected with proteins, with a large Stokes shift, has been used for various sensing applications, down to a few tens of molecules/ions, in air and water.
Journal ArticleDOI
Atomically Precise Noble Metal Nanoclusters as Efficient Catalysts: A Bridge between Structure and Properties.
TL;DR: The model catalyst role of NCs in catalysis is illustrated from theoretical and experimental perspectives, particularly in electrocatalysis, photocatalysis, photoelectric conversion, and catalysis of organic reactions.
Journal ArticleDOI
Bottom-up precise synthesis of stable platinum dimers on graphene.
Huan Yan,Yue Lin,Hong Wu,Wenhua Zhang,Zhihu Sun,Hao Cheng,Wei Liu,Chunlei Wang,Junjie Li,Xiaohui Huang,Tao Yao,Jinlong Yang,Shiqiang Wei,Junling Lu +13 more
TL;DR: Pt2 dimers can be fabricated with a bottom–up approach on graphene using atomic layer deposition, through proper nucleation sites creation, Pt1 single-atom deposition and attaching a secondary Pt atom selectively on the preliminary one.
Journal ArticleDOI
Tailoring the photoluminescence of atomically precise nanoclusters.
Xi Kang,Manzhou Zhu +1 more
TL;DR: Promising applications of metal nanoclusters are reviewed, with particular focus on their potential to impact the fields of chemical sensing, bio-imaging, and bio-labeling, and scope for improvements and future perspectives of these novel nanomaterials are highlighted.
Journal ArticleDOI
Cyclic (Alkyl)(amino)carbenes (CAACs): Recent Developments
TL;DR: The most important results published up to the end of 2013 are briefly summarized, while the majority of this Review focuses on findings reported within the last three years.
References
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Journal ArticleDOI
Gold Nanorods: From Synthesis and Properties to Biological and Biomedical Applications
TL;DR: Of all the possible nanoparticle shapes, gold nanorods are especially intriguing as they offer strong plasmonic fields while exhibiting excellent tunability and biocompatibility, according to a review of their radiative and nonradiative properties.
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Gold nanoparticles in biology: beyond toxicity to cellular imaging
Catherine J. Murphy,Anand Gole,John W. Stone,Patrick N. Sisco,Alaaldin M. Alkilany,Edie C. Goldsmith,Sarah C. Baxter +6 more
TL;DR: The importance of surface chemistry and cell type for interpretation of nanoparticle cytotoxicity studies is illustrated and a relatively unusual live cell application with gold nanorods is described.
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Controlling anisotropic nanoparticle growth through plasmon excitation
TL;DR: It is demonstrated that the previously described photoinduced method for converting silver nanospheres into triangular silver nanocrystals—so-called nanoprisms—can be extended to synthesize relatively monodisperse nanoprism with desired edge lengths in the 30–120 nm range.
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Plasma resonance enhancement of Raman scattering by pyridine adsorbed on silver or gold sol particles of size comparable to the excitation wavelength
TL;DR: In this paper, a new resonance Raman phenomenon is proposed which is the Raman component of resonant Mie scattering, and in which the polarizability of the metal particles is modulated by the vibrations of the adsorbed molecules.
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What controls the melting properties of DNA-linked gold nanoparticle assemblies?
TL;DR: A series of experiments and a theoretical model designed to systematically define and evaluate the relative importance of nanoparticle, oligonucleotide, and environmental variables that contribute to the observed sharp melting transitions associated with DNA-linked nanoparticle structures are reported.