Journal ArticleDOI
Tailoring the photoluminescence of atomically precise nanoclusters.
Xi Kang,Manzhou Zhu +1 more
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TLDR
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.Abstract:
Due to their atomically precise structures and intriguing chemical/physical properties, metal nanoclusters are an emerging class of modular nanomaterials. Photo-luminescence (PL) is one of their most fascinating properties, due to the plethora of promising PL-based applications, such as chemical sensing, bio-imaging, cell labeling, phototherapy, drug delivery, and so on. However, the PL of most current nanoclusters is still unsatisfactory-the PL quantum yield (QY) is relatively low (generally lower than 20%), the emission lifetimes are generally in the nanosecond range, and the emitted color is always red (emission wavelengths of above 630 nm). To address these shortcomings, several strategies have been adopted, and are reviewed herein: capped-ligand engineering, metallic kernel alloying, aggregation-induced emission, self-assembly of nanocluster building blocks into cluster-based networks, and adjustments on external environment factors. We further review promising applications of these fluorescent nanoclusters, with particular focus on their potential to impact the fields of chemical sensing, bio-imaging, and bio-labeling. Finally, scope for improvements and future perspectives of these novel nanomaterials are highlighted as well. Our intended audience is the broader scientific community interested in the fluorescence of metal nanoclusters, and our review hopefully opens up new horizons for these scientists to manipulate PL properties of nanoclusters. This review is based on publications available up to December 2018.read more
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Toward the creation of high-performance heterogeneous catalysts by controlled ligand desorption from atomically precise metal nanoclusters
TL;DR: In this paper, a review of previous studies on the creation of heterogeneous catalysts using atomically precise metal nanoclusters is presented, focusing on the calcination as a ligand-elimination method.
Journal ArticleDOI
Structural Isomerism in Atomically Precise Nanoclusters
Xi Kang,Manzhou Zhu +1 more
TL;DR: In this paper, molecular isomerization has been well established in small-sized organic molecules, whereas bulk inorganic solids present the phase transformation, and studies of molecular isomersization and phase tranformation have been conducted.
Journal ArticleDOI
A Homoleptic Alkynyl-Ligated [Au13Ag16L24]3− Cluster as a Catalytically Active Eight-Electron Superatom
Zhaoxian Qin,Sachil Sharma,Chong-Qing Wan,Sami Malola,Wen Wu Xu,Hannu Häkkinen,Gao Li,Gao Li +7 more
TL;DR: The supported Au 13 Ag 16 L 24 /CeO 2 catalyst exhibited high catalytic activity and selectivity towards the A 3 -coupling reaction involving benzaldehyde, diethylamine and phenylacetylene.
Journal ArticleDOI
Biosensing strategies based on organic-scaffolded metal nanoclusters for ultrasensitive detection of tumor markers.
TL;DR: The synthesis, stabilization and promising applications of fluorescent MNCs, with particular focus on their potential for designing tumor marker biosensors are reviewed, based on publications available up to January 2020.
Journal ArticleDOI
Enhanced Surface Ligands Reactivity of Metal Clusters by Bulky Ligands for Controlling Optical and Chiral Properties
TL;DR: In this paper, the surface ligands play critical roles in determining the surface properties of metal clusters, and a new insight into modulation of the optical properties of the metal clusters and atomically precise homochiral clusters for specific applications are obtained.
References
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Aggregation-Induced Emission: Together We Shine, United We Soar!
TL;DR: This paper presents a meta-analysis of the chiral stationary phase transition of Na6(CO3)(SO4)2, a major component of the response of the immune system to Na2CO3.
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Aggregation-induced emission
TL;DR: In this critical review, recent progress in the area ofAIE research is summarized and typical examples of AIE systems are discussed, from which their structure-property relationships are derived.
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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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Nanostructures in Biodiagnostics
Nathaniel L. Rosi,Chad A. Mirkin +1 more
TL;DR: Nathaniel L. Rosi focuses on the rational assembly of DNA-modified nanostructures into larger-scale materials and their roles in biodiagnostic screening for nucleic acids.