Journal ArticleDOI
Atomically Precise Colloidal Metal Nanoclusters and Nanoparticles: Fundamentals and Opportunities
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TLDR
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
Heavily doped Au25–xAgx(SC6H11)18− nanoclusters: silver goes from the core to the surface
TL;DR: X-ray crystallographic analysis revealed that Ag dopants are distributed not only in the icosahedral core but also in the surface staple motifs; the latter was not achieved in earlier studies of alloy Au25-xAgx nanoclusters.
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Presentation matters: Identity of gold nanocluster capping agent governs intracellular uptake and cell metabolism
TL;DR: It is shown that the choice of the surface ligand used to protect AuNCs can significantly perturb cellular uptake and intracellular redox signaling and the new insights gained will be useful to form the basis of defining specific design rules to enable rational engineering of ultra-small complex nanostructures for biological applications.
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Site-specific targeting of enterovirus capsid by functionalized monodisperse gold nanoclusters
Varpu Marjomäki,Tanja Lahtinen,Mari Martikainen,Jaakko Koivisto,Sami Malola,Kirsi Salorinne,Mika Pettersson,Hannu Häkkinen +7 more
TL;DR: A success is reported in labeling enteroviruses by atomically precise thiol-stabilized gold clusters with 1.5-nm metal cores that bind, via a covalent link, to cysteines that are close to the viral surface, and it is shown that the infectivity of the viruses is not compromised by this labeling procedure.
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Racemization of chiral Pd2Au36(SC2H4Ph)24: doping increases the flexibility of the cluster surface.
TL;DR: The doping leads to a substantial lowering of the racemization temperature, which reflects the flexibility of the ligand shell composed of staple motifs, and the change in activation parameters due to the doping may be solely due to modification of the electronic structure.
Journal ArticleDOI
Crystal structure of Au25(SePh)18 nanoclusters and insights into their electronic, optical and catalytic properties
Yongbo Song,J.X. Zhong,Sha Yang,Shuxin Wang,Tiantian Cao,Jun Zhang,Peng Li,Daqiao Hu,Yong Pei,Manzhou Zhu +9 more
TL;DR: The crystal structure of selenolate-capped Au25(SePh)18(-) nanoclusters has been unambiguously determined for the first time, and provides a solid basis for a deeper understanding of the structure-property relationships.