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Anionic conjugated polymer as a multi-action sensor for the sensitive detection of Cu2+, PPi, real-time ALP assaying and cell imaging

21-May-2015 | Akhtar Hussain Malik; Sameer Hussain; Arvin Sain Tanwar; Sourav Layek; Vishal Trivedi; Parameswar K Iyer, Analyst, 2015

A Cu2+ ensemble polyfluorene derivative, poly[5,5'-(((9H-fluorene-9,9-diyl)bis(hexane-6,1-diyl))bis(oxy))diisophthalate] sodium salt (PFT) displays unprecedented selectivity for PPi (LOD=2.26 ppb) in aqueous solution as well as in random urine samples at physiological pH viz-a-viz monitoring ALP ...

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Nanopore analysis of amyloid fibrils formed by lysozyme aggregation

21-May-2015 | Nikolay Martyushenko; Nicholas A. W. Bell; Robin Lamboll; Ulrich Keyser, Analyst, 2015

The measurement of single particle size distributions of amyloid fibrils is crucial for determining mechanisms of growth and toxicity. Nanopore sensing is an attractive solution for this problem since it gives information on aggregates’ shapes with relatively high throughput for a single particle ...

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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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Applications of DART‐MS for food quality and safety assurance in food supply chain

14-May-2015 | Tianyang Guo, Wei Yong, Yong Jin, Liya Zhang, Jiahui Liu, Sai Wang, Qilong Chen, Yiyang Dong, Haijia Su, Tianwei Tan, Mass Spectrometry Reviews, 2015

Direct analysis in real time (DART) represents a new generation of ion source which is used for rapid ionization of small molecules under ambient conditions. The combination of DART and various mass spectrometers allows analyzing multiple food samples with simple or no sample treatment, or in ...

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Constrained model predictive control with economic optimization for integrating process

14-May-2015 | Qiang Pang, Tao Zou, Qiumei Cong, Yuan Wang, The Canadian Journal of Chemical Engineering, 2015

Abstract The close relationship between steady‐state prediction outputs and actual inputs results in the existence of model uncertainty in the steady‐state prediction equation for integrating processes. This paper establishes a steady‐state prediction model that can reflect the dynamic ...

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Basic design methodology for a prilling tower

14-May-2015 | Saad N. Saleh, Shakir M. Ahmed, Dawood Al‐mosuli, Shahzad Barghi, The Canadian Journal of Chemical Engineering, 2015

Abstract A design methodology was developed for prilling towers based on simultaneous heat, mass, and momentum balances. Basic principles of the prilling process and related sub‐models were considered for production of relatively mono‐size prills. The method was employed in design of a ...

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Application of Surface Enhanced Raman Scattering to the Solution Based Detection of a Popular Legal High, 5,6-methylenedioxy-2-aminoindane (MDAI)

14-May-2015 | Samuel Mabbott; Omar Alharbi; Kate Groves; Royston Goodacre, Analyst, 2015

The ever increasing numbers and users of designer drugs means that analytical techniques have to evolve constantly to facilitate their identification and detection. We report that surface enhanced Raman scattering (SERS) offers a relatively fast and inexpensive method for the detection of MDAI at ...

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Oil‐in‐Water Emulsion Exhibits Bitterness‐Suppressing Effects in a Sensory Threshold Study

13-May-2015 | Damir Dennis Torrico, Amporn Sae‐Eaw, Sujinda Sriwattana, Charles Boeneke, Witoon Prinyawiwatkul, Journal of Food Science, 2015

Abstract Little is known about how emulsion characteristics affect saltiness/bitterness perception. Sensory detection and recognition thresholds of NaCl, caffeine, and KCl in aqueous solution compared with oil‐in‐water emulsion systems were evaluated. For emulsions, NaCl, KCl, or caffeine were ...

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Development and validation of a generic stability‐indicating MEEKC method for five fluoroquinolone antibiotics

12-May-2015 | Eliangiringa Kaale, Ludwig Höllein, Ulrike Holzgrabe, ELECTROPHORESIS, 2015

In this paper, a reliable stability‐indicating generic MEEKC method for the analysis of five commonly used fluoroquinolones (FQs) has been developed and optimised by a central composite circumscribed experimental design. The separation was carried out using a fused silica capillary (60.2 cm ...

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Removal of sulphur black dye from its aqueous solution using alginate from Sargassum sp. (Brown algae) as a coagulant

12-May-2015 | G. Vijayaraghavan, S. Shanthakumar, Environmental Progress, 2015

This study deals with the coagulation potential of alginate extracted from marine algae Sargassum sp. for the removal of sulphur black dye from its aqueous solution. The alginate extraction was found to be efficient (44.8%) and the extracted alginate was characterized by Fourier transform ...

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