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Cu7S4 Nanosuperlattices with Greatly Enhanced Photothermal Efficiency

15-May-2015 | Jiabin Cui, Rui Jiang, Suying Xu, Gaofei Hu, Leyu Wang, Small, 2015

According to the simulation, the self‐assembly of Cu7S4 nanocrystals would enhance the photothermal conversion efficiency (PCE) because of the localized surface plasmon resonance effects, which is highly desirable for photothermal therapy (PTT). A new strategy to synthesize Cu7S4 ...

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Particle Coating-Dependent Interaction of Molecular Weight Fractionated Natural Organic Matter: Impacts on the Aggregation of Silver Nanoparticles

15-May-2015 | Yongguang Yin; Mohai Shen; Zhiqiang Tan; Sujuan Yu; Jingfu Liu; Guibin Jiang, Environmental Science & Technology, 2015

Ubiquitous natural organic matter (NOM) plays an important role in the aggregation state of engineered silver nanoparticles (AgNPs) in aquatic environment, which determines the transport, transformation, and toxicity of AgNPs. As various capping agents are used as coatings for nanoparticles and ...

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Colloidal Nanoparticles: Nanocrystal Self‐Assembly into Hollow Dome‐Shaped Microstructures by Slow Solvent Evaporation on Superhydrophobic Substrates (Part. Part. Syst. Charact. 5/2015)

14-May-2015 | Angelo Accardo, Francesco Di Stasio, Manfred Burghammer, Christian Riekel, Roman Krahne, Particle & Particle Systems Characterization, 2015

A drop of aqueous solution containing highly luminescent colloidal nanocrystals suspended on a superhydrophobic substrate is shown based on the article by R. Krahne and co‐workers on page 524. After drying, a hollow, dome‐shaped residue with sub‐millimeter size remains. This can be attached to ...

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Glycodendrimers: tools to explore multivalent galectin-1 interactions

12-May-2015 | Jonathan M. Cousin and Mary J. Cloninger, Beilstein Journal of Organic Chemistry, 2015

Abstract Four generations of lactose-functionalized polyamidoamine (PAMAM) were employed to further the understanding of multivalent galectin-1 mediated interactions. Dynamic light scattering and fluorescence microscopy were used to study the multivalent interaction of galectin-1 with the ...

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Tio2‐ or tio2/fe3o4‐containing PVA‐based microgels for controlled photocatalytic degradation of methyl orange

09-May-2015 | Congming Xiao, Yanhong Fang, Guoxiang Zhang, Polymer Composites, 2015

An inverse emulsion radical reaction was adopted to prepare poly(vinyl alcohol) (PVA)‐based microgels that contained titanium oxide (TiO2) or TiO2/Fe3O4, and the obtained microgels were applied to catalyze the degradation of methyl orange. First, well‐defined PVA was used to synthesize a ...

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Synthesis and Nanostructures of Metal Selenide Precursors for Cu(In,Ga)Se2 Thin‐Film Solar Cells

08-May-2015 | Ji‐Hyun Cha, Se Jin Noh, Duk‐Young Jung, ChemSusChem, 2015

Abstract A nanoink solution‐based process was developed as a low‐costing method for the fabrication of Cu(In,Ga)Se2 (CIGSe) thin‐film photovoltaic cells. The sonochemical synthesis of CIGSe nanocrystals of the nanoink through step‐by‐step mixing of the reactants was investigated. To achieve ...

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Helicene‐Grafted Silica Nanoparticles Capture Hetero‐Double‐Helix Intermediates during Self‐assembly Gelation

08-May-2015 | Masamichi Miyagawa, Masahiko Yamaguchi, Chemistry - A European Journal, 2015

Abstract A mixture of a pseudoenantiomeric ethynylhelicene (M)‐tetramer and a (P)‐pentamer forms a hetero‐double‐helix in a solution, which self‐assembles and gelates solvents. When gelation was conducted in the presence of chiral silica (P)‐nanoparticles grafted with (P)‐helicene, the ...

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Synthesis of tripodal catecholates and their immobilization on zinc oxide nanoparticles

07-May-2015 | Franziska Klitsche, Julian Ramcke, Julia Migenda, Andreas Hensel, Tobias Vossmeyer, Horst Weller, Silvia Gross and W ..., Beilstein Journal of Organic Chemistry, 2015

Abstract A common approach to generate tailored materials and nanoparticles (NPs) is the formation of molecular monolayers by chemisorption of bifunctional anchor molecules. This approach depends critically on the choice of a suitable anchor group. Recently, bifunctional catecholates, inspired ...

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A thermodynamic gauge for mobile counter ions from charged colloids and nano-particles

07-May-2015 | Albert P. Philipse; Bonny W. M. Kuipers; Agienus Vrij, Faraday Discussions, 2015

A thermodynamic equilibrium sensor is proposed that measures the ratio of the number of elementary charges z to the mass m of charged solutes such as charged colloids and nanoparticles. The sensor comprises a small, membrane-encapsulated salt solution volume that absorbs neutral salt molecules in ...

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MoS2 Nanoparticles Decorating Titanate-Nanotube Surfaces: Combined Microscopy, Spectroscopy, and Catalytic Studies

07-May-2015 | Sara Cravanzola; Lucia Muscuso; Federico Cesano; Giovanni Agostini; Alessandro Damin; Domenica Scarano; Adriano Zecchina, Langmuir, 2015

MoS2/TNTs composites have been obtained by impregnation of titanate nanotubes (TNTs) with a centrifuged solution of nanosized MoS2 particles in isopropyl alcohol (IPA). The characterization has been performed by combining UV–vis–NIR, Raman, AFM, and HRTEM analyses, before and after impregnation. ...

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