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Photolithographic Encoding of Metal Complexes

28-Aug-2015 | Christiane Lang, Sebastian Bestgen, Alexander Welle, Rouven Müller, Peter W. Roesky, Christopher Barner‐Kowollik, Chemistry - A European Journal, 2015

Abstract A platform technology for the creation of spatially resolved surfaces encoded with a monolayer consisting of different metal complexes was developed. The concept entails the light‐triggered activation of a self‐ assembled monolayer (SAM) of UV‐labile anchors, that is, ...

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Corrected stress intensity factor solution for a British standard single edge notched tension (SENT) specimen

28-Aug-2015 | X.‐K. Zhu, Fatigue & Fracture of Engineering Materials & Structures, 2015

Abstract This paper revisits a complicated analytical solution of the stress intensity factor K adopted in a newly published British standard BS 8571:2014 for clamped single edge notched tension (SENT) specimens. Comparison with existing numerical results of K shows that the analytical K ...

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Recovery of Flavonoids from Walnuts De‐Pellicle Wastewater with Macroporous Resins and Evaluation of Antioxidant Activities In Vitro

27-Aug-2015 | Yaxin Zhu, Hao Song, Xu Zhang, Chaoyin Chen, Shenglan Zhao, Feng Ge, Diqiu Liu, Journal of Food Process Engineering, 2015

Abstract Walnut de‐pellicle wastewater is rich in polyphenols and flavonoids that are significant to resource and environment. Enrichment and purification of flavonoids from walnut de‐pellicle wastewater were investigated by five macroporous resins. As static tests shown, AB‐8 resin was the ...

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Surfactant Directed Growth of Gold Metal Nanoplates by Chemical Vapor Deposition

27-Aug-2015 | Matthew B. E. Griffiths; Sara E. Koponen; David J. Mandia; Jennifer F. McLeod; Jason P. Coyle; Jeffrey J. Sims; Javi ..., Chemistry of Materials, 2015

Surface supported, low dimensional gold nanostructures are of interest for plasmonic applications. Low dimensional nanostructures are readily accessible by solution-phase growth, where shape control through the addition of growth-directing surfactants is well established. Yet, shape control in ...

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Determination of metal ion concentrations by SERS using 2,2'-bipyridyl complexes

26-Aug-2015 | Julie Ann Docherty; Samuel Mabbott; Ewen Smith; John Reglinski; Karen Faulds; Christine Davidson; Duncan Graham, Analyst, 2015

Surface enhanced Raman scattering (SERS) can generate characteristic spectral “fingerprints” from metal complexes, thus providing the potential for the development of methods of analysis for the identification and quantitation of a range of metal ions in solution. The advantages include ...

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Hybrid zinc oxide/graphene electrodes for depleted heterojunction colloidal quantum-dot solar cells

26-Aug-2015 | Mohammad Mahdi Tavakoli; Hossein Aashuri; A. Simchi; Zhiyong Fan, Physical Chemistry Chemical Physics, 2015

Recently, hybrid nanocomposites consisting of graphene/nanomaterial heterostructures have emerged as promising candidates for the fabrication of optoelectronic devices. In this work, we have employed a facile and in-situ solution-based process to prepare zinc oxide/graphene quantum dots (ZnO/G ...

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Selective and visual Ca2+ ion recognition in solution and in a self-assembly organogel of terpyridine-based derivative triggered by ultrasound

26-Aug-2015 | Li Jun Geng; Yajuan Li; Zengyao Wang; Yan Qiu Wang; Guoliang Feng; xue lei pang; Xudong Yu, Soft Matter, 2015

a new kind of terpyridine-based Ca2+ sensor TS based on internal charge transfer (ICT) was designed and studied. In the diluted solution state, TS sensed Ca2+ and Mg2+ ions among test ions via “off–on” approach as seen from fluorescence spectra among test ions. Moreover, TS was able to form ...

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Gelation of Fmoc-diphenylalanine is a first order phase transition

26-Aug-2015 | Nikola A. Dudukovic; Charles F. Zukoski, Soft Matter, 2015

We explore the gel transition of the aromatic dipeptide derivative molecule fluorenylmethoxycarbonyl-diphenylalanine (Fmoc-FF). The addition of water to a solution of Fmoc-FF in dimethyl sulfoxide (DMSO) results in increased attractions leading to self-assembly of Fmoc-FF molecules into a ...

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Selective growth of metallic nanostructures on microstructured copper substrate in solution

26-Aug-2015 | Zhiwei He; Jianying He; Zhiliang Zhang, CrystEngComm, 2015

Selective growth of metallic micro/nanostructures on desired micropatterns was achieved via a simple solution-immersion process. Interestingly, metallic micro/nanostructures directly grow only inside the hollow copper micropatterns due to the different surface properties. Furthremore, these ...

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Solid-state structure, solution-state behaviour and catalytic activity of electronically divergent C,N-chelating palladium–N-heterocyclic carbene complexes

26-Aug-2015 | Michael R. Chapman; Benjamin R. M. Lake; Christopher M. Pask; Bao N. Nguyen; Charlotte E. Willans, Dalton Transactions, 2015

A family of electronically diverse pyridyl- and picolyl-substituted imidazolium salts have been prepared and coordinated to palladium in a single step, to deliver a variety of palladium(ii)–N-heterocyclic carbene (NHC) complexes. Neutral Pd(NHC)X2, cationic [Pd(NHC)2X]X and dicationic ...

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