Journal ArticleDOI
Ultra-small fluorescent metal nanoclusters: Synthesis and biological applications
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In this article, the authors summarize synthesis strategies of water-soluble fluorescent metal nanoclusters and their optical properties, highlight recent advances in their application for ultrasensitive biological detection and fluorescent biological imaging, and finally discuss current challenges for their potential biomedical applications.About:
This article is published in Nano Today.The article was published on 2011-08-01. It has received 1306 citations till now. The article focuses on the topics: Nanoclusters.read more
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Atomically Precise Colloidal Metal Nanoclusters and Nanoparticles: Fundamentals and Opportunities
TL;DR: 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.
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Silver as Antibacterial Agent: Ion, Nanoparticle, and Metal
TL;DR: It can be concluded that the therapeutic window for silver is narrower than often assumed, however, the risks for humans and the environment are probably limited.
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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.
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An overview of nanoparticles commonly used in fluorescent bioimaging
TL;DR: An overview of the various kinds of nanoparticles (NPs) that are widely used for purposes of fluorescent imaging, mainly of cells and tissues is given.
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From Aggregation-Induced Emission of Au(I)–Thiolate Complexes to Ultrabright Au(0)@Au(I)–Thiolate Core–Shell Nanoclusters
TL;DR: Strong luminescence emission by the mechanism of aggregation-induced emission (AIE) is reported of Au(I)-thiolate complexes, and the synthetic strategy was extended to other thiolate ligands with added functionalities (in the form of custom-designed peptides).
References
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Journal ArticleDOI
Facile preparation of water-soluble fluorescent gold nanoclusters for cellular imaging applications
Li Shang,René M. Dörlich,Stefan Brandholt,Reinhard Schneider,Vanessa Trouillet,Michael Bruns,Dagmar Gerthsen,G. Ulrich Nienhaus,G. Ulrich Nienhaus +8 more
TL;DR: A facile strategy to synthesize water-soluble, fluorescent gold nanoclusters (AuNCs) in one step by using a mild reductant, tetrakis(hydroxymethyl)phosphonium chloride (THPC), and a zwitterionic functional ligand, D-penicillamine (DPA), as a capping agent endowed the AuNCs with excellent stability in aqueous solvent over the physiologically relevant pH range.
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A complementary palette of fluorescent silver nanoclusters
TL;DR: The synthesis and photophysical properties of silver-nanoclusters templated on DNA are reported, with fluorescence excitation and emission at distinct wavelengths that are tuned to common laser excitation wavelengths.
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Endo- and exocytosis of zwitterionic quantum dot nanoparticles by live HeLa cells.
Xiue Jiang,Carlheinz Röcker,Margit Hafner,Stefan Brandholt,René M. Dörlich,G. Ulrich Nienhaus,G. Ulrich Nienhaus +6 more
TL;DR: It is shown that DPA-QDs were predominantly internalized by clathrin-mediated endocytosis and to a smaller extent by macropinocytotic.
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Ag(9) quantum cluster through a solid-state route.
TL;DR: The solid-state route provides nearly pure Ag(9) clusters, and nanoparticle contamination was insignificant for routine studies, and the cluster showed luminescence with a quantum yield of 8 × 10−3 at 5 °C.
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Fluorescent gold nanoparticles-based fluorescence sensor for Cu2+ ions
TL;DR: A new fluorescence sensor for the highly selective detection of Cu2+ ion with a detection limit of 3.6 nM based on the aggregation-induced fluorescence quenching of the highly fluorescent glutathione-capped gold nanoparticles is reported.