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Desalting Large Protein Complexes during Native Electrospray Mass Spectrometry by Addition of Amino Acids to the Working Solution.

25-Feb-2015 | David Clarke; Dominic Campopiano, Analyst, 2015

Native mass spectrometry is a rapidly emerging field for characterising the structure of proteins and protein assemblies. The technique relies on electrospray ionisation (ESI) to efficiently ionise the protein analyte and transmit it into the gas phase with retention of protein structure, ...

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A nonenzymatic amperometric glucose sensor based on three dimensional nanostructure gold electrode

22-Feb-2015 | Author(s): Guang-Xian Zhong , Wen-Xin Zhang , Yi-Ming Sun , Yin-Qiu Wei , Yun Lei , Hua-Ping Peng , Ai-Lin Li ..., Sensors and Actuators B: Chemical, 2015

Publication date: June 2015 Source:Sensors and Actuators B: Chemical, Volume 212 Author(s): Guang-Xian Zhong , Wen-Xin Zhang , Yi-Ming Sun , Yin-Qiu Wei , Yun Lei , Hua-Ping Peng , Ai-Lin Liu , Yuan-Zhong Chen , Xin-Hua Lin A nonenzymatic amperometric glucose sensor was established ...

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Study of Combined Effect of Proteins and Bentonite Fining on the Wine Aroma Loss

19-Feb-2015 | Simone Vincenzi; Annarita Panighel; Diana Gazzola; Riccardo Flamini; Andrea Curioni, Journal of Agricultural and Food Chemistry, 2015

The wine aroma loss as a consequence of treatments with bentonite is due to the occurrence of multiple interaction mechanisms. In addition to a direct effect of bentonite, the removal of aroma compounds bound to protein components adsorbed by the clay has been hypothesized but never demonstrated. ...

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New Insights into Structure and Luminescence of EuIII and SmIII Complexes of the 3,4,3-LI(1,2-HOPO) Ligand

19-Feb-2015 | Lena J. Daumann; David S. Tatum; Benjamin E. R. Snyder; Chengbao Ni; Ga-lai Law; Edward I. Solomon; Kenneth N. Raymond, Journal of the American Chemical Society, 2015

We report the preparation and new insight into photophysical properties of luminescent hydroxypyridonate complexes [MIIIL]− (M = Eu or Sm) of the versatile 3,4,3-LI(1,2-HOPO) ligand (L). We report the crystal structure of this ligand with EuIII as well as insights into the coordination behavior ...

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Adsorption of Proteins at the Solution/Air Interface Influenced by Added Nonionic Surfactants at Very Low Concentrations for Both Components. 3. Dilational Surface Rheology

19-Feb-2015 | V. B. Fainerman; E. V. Aksenenko; S. V. Lylyk; M. Lotfi; R. Miller, Journal of Physical Chemistry B, 2015

The influence of the addition of the nonionic surfactants C12DMPO, C14DMPO, C10OH, and C10EO5 at concentrations between 10–5 and 10–1 mmol/L to solutions of β-casein (BCS) and β-lactoglobulin (BLG) at a fixed concentration of 10–5 mmol/L on the dilational surface rheology is studied. A maximum in ...

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Supramolecular Assembly of Achiral Alkynylplatinum(II) Complexes and Carboxylic β‐1,3‐Glucan into Different Helical Handedness Stabilized by Pt⋅⋅⋅Pt and/or π–π Interactions

18-Feb-2015 | Clive Yik‐Sham Chung, Shun‐ichi Tamaru, Seiji Shinkai, Vivian Wing‐Wah Yam, Chemistry - A European Journal, 2015

Abstract Two‐component ensembles of alkynylplatinum(II) terpyridine (tpy) complexes and carboxylic β‐1,3‐glucan (CurCOOH) have been investigated by using spectroscopic and microscopic techniques, as well as time‐dependent UV/Vis absorption and circular dichroism (CD) experiments. Microscopic ...

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Boryl-Dihydrideborate Osmium Complexes: Preparation, Structure, and Dynamic Behavior in Solution

18-Feb-2015 | Miguel A. Esteruelas; Ana M. López; Malka Mora; Enrique Oñate, Organometallics, 2015

The metal fragment Os(CO)(PiPr3)2 stabilizes boryl-dihydrideborate species, which can be viewed as snapshots of states of B–H oxidative addition of a R2BH molecule and frustrated B–H bond activation of a second one. Complex OsH2(η2-CH2═CHEt)(CO)(PiPr3)2 (2) shows a tendency to dissociate the ...

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Coordination Induced Atropisomerism in an NHC-Based Rhodium Macrocycle

18-Feb-2015 | Rhiann E. Andrew; Dominic W. Ferdani; C. André Ohlin; Adrian B. Chaplin, Organometallics, 2015

Reversible interaction with carbon monoxide results in the onset of dynamic atropisomerism at 298 K in an otherwise static NHC-based rhodium pincer complex, [Rh(C^N^C-(CH2)12)(CO)][BArF4] (1, ArF = 3,5-C6H3(CF3)2). The mechanism of this process has been comprehensively interrogated by a ...

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Influence of Nb addition on the corrosion behavior of a Ti60Zr10Si15Ta15 alloy in PBS solution

17-Feb-2015 | X. Q. Wu, J. G. Lin, Materials and Corrosion, 2015

The Ti60 Zr10Si15Ta15‐xNbx (x = 0, 3, 7, 11 at.%) alloys were casted by an arc melting method, and the Ti60Zr10Si15Ta15 ribbon was prepared by the single roll melt‐spinning method. The identifications of the microstructure of the Ti alloys were carried out by X‐ray diffraction (XRD) ...

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Effect of inorganic anions on the corrosion behavior of UNS S32750 duplex stainless steel in chloride solution

17-Feb-2015 | S. Jin, C.‐M. Liu, X. Lin, M.‐J. Li, H.‐B. Cao, H.‐Z. Wang, Materials and Corrosion, 2015

The present study explored the electrochemical behavior of UNS S32750, a super duplex stainless steel which was not commonly researched in previous studies. The effect of bicarbonate () and sulfate () on the electrochemical behavior of UNS S32750 duplex stainless steel in the chloride (Cl−) ...

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