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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Mono-functionalized pillar[n]arenes: Syntheses, host–guest properties and applications†
Journal ArticleDOI
Atomically Precise Clusters: Chemical Evolution of Molecular Matter at the Nanoscale
TL;DR: The chemistry of nanoparticles with atomic precision has become a subject of interest due to the unique physical and chemical properties of these systems in comparison to their bulk counterparts as mentioned in this paper , and there is a need to bridge the gap between single atoms and nanoparticles to understand the size evolution of matter.
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Inhibition of cancer cells using target-specific 2A3 antibody-conjugated gold nanoclusters
TL;DR: Two gold nanoclusters conjugated with a single domain antibody targeting CEACAM6 of 2A3 (2A3-AuNCs) were synthesized for the inhibition of cancer cells and exhibited promising inhibition of CEACam6 overexpressed cancer cells.
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Ag Nanoclusters
TL;DR: In this article , the authors summarized the literature work on ligand-protected metal nanoclusters and included the synthesis, structure, and properties including chirality, fluorescence, and catalysis.
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Doping‐Mediated Energy‐Level Engineering of M@Au <sub>12</sub> Superatoms (M=Pd, Pt, Rh, Ir) for Efficient Photoluminescence and Photocatalysis
TL;DR: In this paper , a series of MAu12(dppe)5Cl2 (MAu12; M=Au, Pd, Pt, Rh, or Ir; dppe=1,2-bis(diphenylphosphino)ethane), which have icosahedral M@Au12 superatomic cores, were synthesized and systematically investigated their electronic structures, photoluminescence (PL) and photocatalytic properties.
References
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Aggregation-Induced Emission: Together We Shine, United We Soar!
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