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1,136 Newest Publications about the topic solution

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Motion‐Based, High‐Yielding, and Fast Separation of Different Charged Organics in Water

21-11-2014 | Mingjun Xuan, Xiankun Lin, Jingxin Shao, Luru Dai, Qiang He, ChemPhysChem, 2014

Abstract We report a self‐propelled Janus silica micromotor as a motion‐based analytical method for achieving fast target separation of polyelectrolyte microcapsules, enriching different charged organics with low molecular weights in water. The self‐propelled Janus silica micromotor ...

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Tailored Pore Sizes in Integral Asymmetric Membranes Formed by Blends of Block Copolymers

20-11-2014 | Maryam Radjabian, Volker Abetz, Advanced Materials, 2014

A simple way to generate isoporous membranes with tailored pore sizes is shown. Block copolymers of different compositions are blended in solution and membranes are obtained by solution casting followed by nonsolvent‐induced phase separation. This enables the preparation of integral asymmetric ...

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Unusual Fractional Crystallization Behavior of Novel Crystalline/Crystalline Polymer Blends of Poly(ethylene suberate) and Poly(ethylene oxide) with Similar Melting Points

19-11-2014 | Mengting Weng; Zhaobin Qiu, Macromolecules, 2014

Novel crystalline/crystalline polymer blends of biodegradable poly(ethylene suberate) (PESub) and biocompatible poly(ethylene oxide) (PEO) were prepared through a solution and casting method. The basic thermal properties, including both glass transition temperature and melting point, of both of ...

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Computer simulation of electrophoretic aspects of enantiomer migration and separation in capillary electrochromatography with a neutral selector

17-11-2014 | Wolfgang Thormann, Jitka Caslavska, Richard A. Mosher, ELECTROPHORESIS, 2014

A computer simulation study describing the electrophoretic separation and migration of methadone enantiomers in presence of free and immobilized (2‐hydroxypropyl)‐β‐cyclodextrin is presented. The 1:1 interaction of methadone with the neutral CD was simulated by using experimentally determined ...

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Sensors, Vol. 14, Pages 21535-21548: Magnetic Bead-Based Colorimetric Immunoassay for Aflatoxin B1 Using Gold Nanoparticles

14-11-2014 | Wang, Xu ; Niessner, Reinhard ; Knopp, Dietmar, Sensors, 2014

A competitive colorimetric immunoassay for the detection of aflatoxin B1 (AFB) has been established using biofunctionalized magnetic beads (MBs) and gold nanoparticles (GNPs). Aflatoxin B1-bovine serum albumin conjugates (AFB-BSA) modified MBs were employed as capture probe, which could ...

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Molecules, Vol. 19, Pages 18705-18720: Removing Tannins from Medicinal Plant Extracts Using an Alkaline Ethanol Precipitation Process: A Case Study of Danshen Injection

14-11-2014 | Gong, Xingchu ; Li, Yao ; Qu, Haibin, Molecules, 2014

The alkaline ethanol precipitation process is investigated as an example of a technique for the removal of tannins extracted from Salviae miltiorrhizae Radix et Rhizoma for the manufacture of Danshen injection. More than 90% of the tannins can be removed. However, the recoveries of danshensu, ...

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Evaluation of the combination of a dispersive liquid‐liquid microextraction method with micellar electrokinetic chromatography coupled to mass‐spectrometry for the determination of estrogenic compounds in milk and yogurt

13-11-2014 | Giovanni D'Orazio, María Asensio‐Ramos, Javier Hernández‐Borges, Miguel Ángel Rodríguez‐Delgado, Salvatore Fanali, ELECTROPHORESIS, 2014

In this work, the suitability of a methodology based on dispersive liquid‐liquid microextraction (DLLME) has been evaluated for the extraction of four endoestrogens (estriol, 17α‐estradiol, 17β‐estradiol and estrone), an exoestrogen (17α‐etynylestradiol) and a mycotoxin (zearalenone), together ...

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Anomalous Diffusion in Thermoresponsive Polymer–Clay Composite Hydrogels Probed by Wide-Field Fluorescence Microscopy

13-11-2014 | Beate Stempfle; Anna Große; Bernhard Ferse; Karl-Friedrich Arndt; Dominik Wöll, Langmuir, 2014

Thermoresponsive materials exhibit an enormous potential for tissue engineering, separation systems, and drug delivery. We investigated the diffusion of laponite clay nanoparticles, which serve as physical cross-linkers to achieve improved material properties in poly(N-isopropylacrylamide) ...

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Redox and Photochemistry of Bis(terpyridine)ruthenium(II) Amino Acids and Their Amide Conjugates – from Understanding to Applications (Eur. J. Inorg. Chem. 32/2014)

11-11-2014 | Aaron Breivogel, Christoph Kreitner, Katja Heinze, European Journal of Inorganic Chemistry, 2014

The cover picture shows push‐pull‐substituted bis(terpyridine)ruthenium(II) amino acid [Ru(4′‐tpy‐COOH)(4′‐tpy‐NH2)]2+ (tpy = 2,2′;6′,2″‐terpyridine) and its interaction with light, as well as with electron donors and electron acceptors, in the front. This multifunctional complex is ...

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Multiple patterns of polymer gels in microspheres due to the interplay among phase separation, wetting, and gelation [Applied Physical Sciences]

11-11-2014 | Miho Yanagisawa; Shinpei Nigorikawa; Takahiro Sakaue; Kei Fujiwara; Masayuki Tokita, Proceedings of the National Academy of Sciences current issue, 2014

We report the spontaneous patterning of polymer microgels by confining a polymer blend within microspheres. A poly(ethylene glycol) (PEG) and gelatin solution was confined inside water-in-oil (W/O) microdroplets coated with a layer of zwitterionic lipids: dioleoylphosphatidylethanolamine (PE) and ...

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