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28.327 Aktuelle Fachpublikationen zum Thema water

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How coatings with hydrophobic particles may change the drying of water droplets: incompressible surface versus porous media effects

10.04.2013 | Benoît Laborie; Florent Lachaussée; Elise Lorenceau; Florence Rouyer, Soft Matter, 2013

There is no clear statement on the role of particles in the drying of liquid marbles, which are liquid drops coated with hydrophobic solid particles. While some works report a similar drying time for liquid marbles and bare water drops others observe a faster evaporation of either liquid ...

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Copper(II) Complexes with 2NO and 3N Donor Ligands: Synthesis, Structures and Chemical Nuclease and Anticancer Activities

10.04.2013 | Mallayan Palaniandavar, Dalton Transactions, 2013

Abstract: A series of water soluble copper(II) complexes of the types [Cu(L)Cl] 1 - 2, where LH is 2-(2-(1H-benzimidazol-2-yl)ethyliminomethyl)phenol (H(L1)), and 2-(2-(1H-benzimidazol-2-yl)-ethylimino)methyl)-4-methylphenol (H(L2)), and [Cu(L)Cl2] 3 - 6, where L is ...

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Kinetics and Mechanism of the Oxygen Reduction Reaction in a Protic Ionic Liquid

10.04.2013 | Darren Walsh; Andinet Ejigu; Joshua Smith; Peter Licence, Physical Chemistry Chemical Physics, 2013

The oxygen reduction reaction (ORR) has been studied at Pt surfaces in the protic ionic liquid diethylmethylammonium trifluoromethanesulfonate. Water content measurements suggested that the ORR proceeded in the ionic liquid predominantly via a 4-electron reduction to water. A mechanistic ...

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One-pot synthesis of water soluble iron nanoparticles using rationally-designed peptides and ligand release

10.04.2013 | Stefanie Papst; Soshan Cheong; Moritz J Banholzer; Margaret A Brimble; David Edward Williams; Richard Tilley, Chemical Communication, 2013

Herein we report the rational design of new phosphopeptides for control of nucleation, growth and aggregation of water-soluble, superparamagnetic iron/iron oxide core/shell nanoparticles. The use of the designed peptides enables a one-pot synthesis that avoids utilizing unstable or toxic iron ...

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Supramolecular receptors in solid phase: developing sensors for anionic radionuclides

10.04.2013 | Giancarla Alberti; Valeria Amendola; Greta Bergamaschi; Roberta Colleoni; Chiara Milanese; Raffaela Biesuz, Dalton Transactions, 2013

New solid-phases for the binding, separation and extraction of perrhenate and pertechnetate (ReO4− and TcO4−) from water solutions have been developed from a selective molecular receptor. Host compounds being capable of encapsulating these oxoanions are of great interest. The azacryptand, ...

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Monodisperse Transfer of Superparamagnetic Nanoparticles from Non-polar Solvent to Aqueous Phase

10.04.2013 | Erwin Peng; Shi Guang Choo; Yang Sheng; Jun Min Xue, New Journal of Chemistry, 2013

The use of superparamagnetic nanocrystals (MNPs) for biomedical applications generally requires a synthetic route in which the resultant MNPs are water soluble and biocompatible with good morphology and size distribution control, as well as optimized hydrodynamic size. To achieve this, ...

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Enhanced photoresponse of large-sized photoactive graphene composite films based on water-soluble conjugated polymers

10.04.2013 | Jinhua Sun; Linhong Xiao; Dongli Meng; Jianxin Geng; Yong Huang, Chemical Communication, 2013

Composite films of chemically converted graphene (CCG) and water-soluble polythiophenes (P3TOPS and P3TOPA) were prepared by LBL method using the suspension of negatively charged CCG/P3TOPS sheets and the solution of positively charged P3TOPA. The composite films show enhanced photoresponse ...

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Spatial heterogeneity in the sol–gel transition of a supramolecular system

10.04.2013 | David P. Penaloza; Atsuomi Shundo; Keigo Matsumoto; Masashi Ohno; Katsuaki Miyaji; Masahiro Goto; Keiji Tanaka, Soft Matter, 2013

Heating and then cooling down a dispersion of a peptide amphiphile in water forms hierarchical fibril structures leading to a supramolecular hydrogel. When the gel was physically broken apart by shaking, it transformed into a sol state. After aging it at room temperature for a given time, it ...

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Anion capture and sensing with cationic boranes: On the synergy of Coulombic effects and onium ion-centred Lewis acidity

10.04.2013 | Haiyan Zhao; Lauren A. Leamer; F P Gabbai, Dalton Transactions, 2013

Stimulated by the growing importance and recognized toxicity of anions such as fluoride, cyanide and azides, we have, in the past few years, developed a family of Lewis acidic triarylboranes that can be used for the complexation of these anions in organic and protic solvents, including water. ...

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Functional block copolymer assemblies responsive to tumor and intracellular microenvironments for site-specific drug delivery and enhanced imaging performance

10.04.2013 | Zhishen Ge; Shiyong Liu, Chemical Society Reviews, 2013

Self-assembled nanostructures of amphiphilic and double hydrophilic block copolymers have been increasingly utilized as potent polymeric nanocarriers of therapeutic drugs, genes, bioactive molecules, and imaging/contrast agents due to improved water solubility, bioavailability, and extended ...

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