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Propofol detection and quantification in human blood: the promise of feedback controlled, closed-loop anesthesia

22-10-2014 | Francine Kivlehan; Edward Chaum; Ernő Lindner, Analyst, 2014

The performance of a membrane-coated voltammetric sensor for propofol (2,6-diisopropylphenol) has been characterized in long term monitoring experiments using an automated flow analytical system (AFAS) and by analyzing human serum and whole blood samples by standard addition. It is shown that the ...

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Mechanical properties of mesoporous ceria nanoarchitectures

22-10-2014 | Thi X. T. Sayle; Beverley J. Inkson; Günter Möbus; Stephen C. Parker; Sudipta Seal; Dean C. Sayle, Physical Chemistry Chemical Physics, 2014

Architectural constructs are engineered to impart desirable mechanical properties facilitating bridges spanning a thousand meters and buildings nearly 1 km in height. However, do the same ‘engineering-rules’ translate to the nanoscale, where the architectural features are less than 0.0001 mm in ...

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Effect of mineralization agents on surface structure and dielectric property of SrTiO3 nanocrystals

22-10-2014 | LQ Dong; Kui Cheng; Wenjian Weng; Weiqiang Han, CrystEngComm, 2014

In this communication, strontium titanate (SrTiO3) nanocrystals with tailored surface structures have been synthesized by the hydrothermal method using sodium hydroxide (NaOH) and lithium hydroxide (KOH) as the mineralization agents. The results show that the surface structure adjusted by ...

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Microscale Anechoic Architecture: Acoustic Diffusers for Ultra Low Power Microparticle Separation via Traveling Surface Acoustic Waves

22-10-2014 | Jan Behrens; Sean Langelier; Amgad Rezk; Gerhard Lindner; Leslie Yeo; James R. Friend, Lab on a Chip, 2014

We present a versatile and very low-power traveling SAW microfluidic sorting device able to displace and separate particles of different diameter in aqueous suspension; the travelling wave propagates through the fluid bulk and diffuses via a Schröder diffuser, adopted from its typical use in ...

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Fluorescent probes and bioimaging: alkali metals, alkaline earth metals and pH

22-10-2014 | Jun Yin; Ying Hu; Juyoung Yoon, Chemical Society Reviews, 2014

All living species and life forms have an absolute requirement for bio-functional metals and acid–base equilibrium chemistry owing to the critical roles they play in biological processes. Hence, a great need exists for efficient methods to detect and monitor biometals and acids. In the last few ...

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Construction about different fold interpenetrated POMOFs with the same topology

22-10-2014 | JingQuan Sha; liang Li; Jingwen Sun; Guangming Li; Pengfei Yan; Cheng Wang, CrystEngComm, 2014

Three different fold interpenetrated metal-organic networks based on Keggin-type polyoxometalates have been hydrothermally synthesized by a simple change in organic ligand and structurally characterized. By changing the length and coordination mode of ligand, compound 1 represents the first ...

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Biomimetic super-lyophobic and super-lyophilic materials applied for oil/water separation: a new strategy beyond nature

22-10-2014 | Ben Wang; Weixin Liang; Zhiguang Guo; Weimin Liu, Chemical Society Reviews, 2014

Oil spills and industrial organic pollutants have induced severe water pollution and threatened every species in the ecological system. To deal with oily water, special wettability stimulated materials have been developed over the past decade to separate oil-and-water mixtures. Basically, synergy ...

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Hydrogen adsorption on bimetallic PdAu(111) surface alloys: minimum adsorption ensemble, ligand and ensemble effects, and ensemble confinement

22-10-2014 | Naoki Takehiro; Ping Liu; Andreas Bergbreiter; Jens K. Nørskov; R. Jürgen Behm, Physical Chemistry Chemical Physics, 2014

The adsorption of hydrogen on structurally well defined PdAu–Pd(111) monolayer surface alloys was investigated in a combined experimental and theoretical study, aiming at a quantitative understanding of the adsorption and desorption properties of individual PdAu nanostructures. Combining the ...

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Luminescent dansyl-based ionic liquids from amino acids and methylcarbonate onium salt precursors: synthesis and photobehaviour

22-10-2014 | Giulia Fiorani; Maurizio Selva; Alvise Perosa; Alvise Benedetti; Francesco Enrichi; Peter Licence; Timothy L. Easun, Green Chemistry, 2014

Five new luminescent ionic liquids (LILs) derived from tryptophan (Trp), phenylalanine (Phe) and the dipeptide Gly-Gly functionalized with a dansyl chromophore moiety, were synthesized by an original protocol involving both green reagents/solvents such as non-toxic dimethyl carbonate (DMC: ...

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Growth, thermal, and spectroscopic properties of a 2.911 [small mu ]m Yb,Ho:GdYTaO4 laser crystal

22-10-2014 | Renqin Dou; Qingli Zhang; Dunlu Sun; Jianqiao Luo; Huajun Yang; Wenpeng Liu; Guihua Sun, CrystEngComm, 2014

A promising 2.911 μm Yb,Ho:GdYTaO4 laser crystal has been grown successfully by the Czochralski method for the first time. The crystal belongs to the monoclinic space group of I2/a (No.15) and high crystalline quality is demonstrated by X-ray rocking curves. The effective segregation coefficient ...

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