Angewandte Chemie
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Blue Luminescence from (CdS)ZnS Core–Shell Nanocrystals
Angewandte Chemie - Tập 116 Số 16 - Trang 2206-2210 - 2004
Ein effizienter Zugang zu Organocer(<scp>IV</scp>)‐Komplexen: Synthese und Struktur von Bis[1,3,6‐tris(trimethylsilyl)‐cyclooctatetraen]cer(IV) Hervorragend löslich, kurzzeitig an Luft handhabbar und thermisch stabiler als erwartet sind CeIV ‐Komplexe wie 1 mit dem Me3 Si‐substituierten Cyclooctatetraen‐Dianon als Liganden, bei denen das Metallatom durch eine organische Hülle gut sterisch abgeschirmt ist. Jetzt ist der Weg zur Untersuchung dieser Substanzklasse frei.magnified image
Angewandte Chemie - Tập 106 Số 15-16 - Trang 1684-1687 - 1994
3D Aperiodic Hierarchical Porous Graphitic Carbon Material for High‐Rate Electrochemical Capacitive Energy Storage
Angewandte Chemie - Tập 120 Số 2 - Trang 379-382 - 2008
Antitumor Agents Based on Metal–Organic Frameworks Abstract Metal–organic frameworks (MOFs) hold great promise for biomedical applications owing to their unique properties. The porous structures make MOFs excellent candidates for the delivery of different drugs; the flexibility in choosing metal ions and organic ligands makes it feasible to prepare MOFs with intrinsic antitumor activities and further devise MOF–drug synergistic systems; many other types of antitumor agents could also be developed using MOFs as the precursors/templates. Thus, the past two decades have witnessed the great development of MOF‐based drugs, especially in the antitumor field. This Minireview mainly focuses on the design and applications of MOF‐based antitumor agents. Four aspects covering the whole field are introduced: MOFs as carriers, MOFs as antitumor agents, MOF–drug synergistic systems, and MOF‐derived antitumor agents. The challenges and opportunities of MOFs for clinical antitumor applications are also discussed.
Angewandte Chemie - Tập 133 Số 31 - Trang 16901-16914 - 2021
Well‐Arranged and Confined Incorporation of PdCo Nanoparticles within a Hollow and Porous Metal–Organic Framework for Superior Catalytic Activity Abstract A convenient method for the confined incorporation of highly active bimetallic PdCo nanocatalysts within a hollow and porous metal–organic framework (MOF) support is presented. Several chemical conversions occur simultaneously during the one‐step low temperature pyrolysis of well‐designed polystyrene@ZIF‐67/Pd2+ core–shell microspheres, where ZIF (zeolitic imidazolate framework) is a subclass of MOF: the polystyrene core is removed, resulting in a beneficial hollow and porous ZIF support; the ZIF‐67 shell acts as a well‐defined porous support and as a felicitous Co2+ supplier for metal nanoparticle formation; and Pd2+ and Co2+ are reduced to form catalytically active bimetallic PdCo nanoparticles in the well‐defined micropores, inducing the confined growth of PdCo nanoparticles with excellent dispersity.
Angewandte Chemie - Tập 131 Số 3 - Trang 876-881 - 2019
Interface Engineering of MoS<sub>2</sub>/Ni<sub>3</sub>S<sub>2</sub> Heterostructures for Highly Enhanced Electrochemical Overall‐Water‐Splitting Activity Abstract To achieve sustainable production of H2 fuel through water splitting, low‐cost electrocatalysts for the hydrogen‐evolution reaction (HER) and the oxygen‐evolution reaction (OER) are required to replace Pt and IrO2 catalysts. Herein, for the first time, we present the interface engineering of novel MoS2 /Ni3 S2 heterostructures, in which abundant interfaces are formed. For OER, such MoS2 /Ni3 S2 heterostructures show an extremely low overpotential of ca. 218 mV at 10 mA cm−2 , which is superior to that of the state‐of‐the‐art OER electrocatalysts. Using MoS2 /Ni3 S2 heterostructures as bifunctional electrocatalysts, an alkali electrolyzer delivers a current density of 10 mA cm−2 at a very low cell voltage of ca. 1.56 V. In combination with DFT calculations, this study demonstrates that the constructed interfaces synergistically favor the chemisorption of hydrogen and oxygen‐containing intermediates, thus accelerating the overall electrochemical water splitting.
Angewandte Chemie - Tập 128 Số 23 - Trang 6814-6819 - 2016
Responsive Supramolecular Polymers Based on the Bis[alkynylplatinum(II)] Terpyridine Molecular Tweezer/Arene Recognition Motif Abstract Supramolecular polymers are constructed based on the novel bis[alkynylplatinum(II)] terpyridine molecular tweezer/pyrene recognition motif. Successive addition of anthracene as the diene and cyano‐functionalized dienophile triggers the reversible supramolecular polymerization process, thus advancing the concept of utilizing Diels–Alder chemistry to access stimuli‐responsive materials in compartmentalized systems.
Angewandte Chemie - Tập 126 Số 24 - Trang 6204-6208 - 2014
Über ein hochtoxisches Kondensationsprodukt von Sulfamid und Formaldehyd Abstract Ein Mol Sulfamid bildet in stark mineralsaurer Lösung mit zwei Molen Formaldehyd Tetramethylendisulfotetramin. Diese Verbindung ist ein sehr starkes Krampfgift.
Angewandte Chemie - Tập 61 Số 9 - Trang 365-366 - 1949
Self‐(Un)rolling Biopolymer Microstructures: Rings, Tubules, and Helical Tubules from the Same Material Abstract We have demonstrated the facile formation of reversible and fast self‐rolling biopolymer microstructures from sandwiched active–passive, silk‐on‐silk materials. Both experimental and modeling results confirmed that the shape of individual sheets effectively controls biaxial stresses within these sheets, which can self‐roll into distinct 3D structures including microscopic rings, tubules, and helical tubules. This is a unique example of tailoring self‐rolled 3D geometries through shape design without changing the inner morphology of active bimorph biomaterials. In contrast to traditional organic‐soluble synthetic materials, we utilized a biocompatible and biodegradable biopolymer that underwent a facile aqueous layer‐by‐layer (LbL) assembly process for the fabrication of 2D films. The resulting films can undergo reversible pH‐triggered rolling/unrolling, with a variety of 3D structures forming from biopolymer structures that have identical morphology and composition.
Angewandte Chemie - Tập 127 Số 29 - Trang 8610-8613 - 2015
Mass Production and High Photocatalytic Activity of ZnS Nanoporous Nanoparticles
Angewandte Chemie - Tập 117 Số 8 - Trang 1295-1299 - 2005
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