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Molecularly imprinted cryogel for L-glutamic acid separation.

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A molecular recognition based L-glutamic acid (L-GLU) imprinted cryogel was prepared for L-GLU separation via chromatographic applications. The novel functional monomer N-methacryloyl-(L)-glutamic acid-Fe(3+) (MAGA-Fe(3+) ) was synthesized to be complex with L-GLU. The L-GLU imprinted cryogel was

Evanescent wave cavity ring-down spectroscopy (EW-CRDS) as a probe of macromolecule adsorption kinetics at functionalized interfaces.

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Evanescent wave cavity ring-down spectroscopy (EW-CRDS) has been employed to study the interfacial adsorption kinetics of coumarin-tagged macromolecules onto a range of functionalized planar surfaces. Such studies are valuable in designing polymers for complex systems where the degree of interaction

Evanescent wave cavity ring-down spectroscopy as a probe of interfacial adsorption: interaction of Tris(2,2'-bipyridine)ruthenium(II) with silica surfaces and polyelectrolyte films.

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Evanescent wave cavity ring-down spectroscopy (EW-CRDS) has been used to study the interaction of the tris(2,2'-bipyridine)ruthenium(II) complex, [Ru(bpy)(3)](2+), at both native silica surfaces and surfaces modified with polyelectrolyte films. Both poly-l-lysine (PLL) and PLL/poly-l-glutamic acid

The significance of apical K+ channels in mudpuppy feeding behavior.

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Behavioral experiments were conducted to determine the effects of known potassium channel blockers, minnow extract (a natural food substance), and other taste stimuli on feeding behavior in the mudpuppy (Necturus maculosus). Groups of 10-15 mudpuppies were presented with one or more of the following

Enantioselective uptake of amino acids using an electromodulated column packed with carbon fibres modified with overoxidised polypyrrole.

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A column packed with carbon fibres modified with overoxidized polypyrrole was utilised for the enantioselective uptake of glutamic acid. The polypyrrole prepared with L-glutamate as a dopant was electrochemically overoxidised to create a complementary cavity for the dopant. The target amino acid

[Experimental study of xenogeneic heart valve material].

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OBJECTIVE To explore the possibility of improving the performance of tissue engineering valve by means of preendothelialization with cultured human umbilical vein endothelial cell(hUVEC) and to develop a new xenogenic bioprosthesis valve material. METHODS The porcine aortic valves treated by use of

Polymersomes in "gelly" polymersomes: toward structural cell mimicry.

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We demonstrate here the formation of compartmentalized polymersomes with an internal "gelly" cavity using an original and versatile process. Nanosize polymersomes of poly(trimethylene carbonate)-b-poly(L-glutamic acid) (PTMC-b-PGA), formed by a solvent displacement method are encapsulated with a

Fluorometric 'switch-on' detection of heparin based on a system composed of rhodamine-labeled chitosan oligosaccharide lactate, and graphene oxide.

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A novel fluorescence 'Switch on' for the detection of heparin based on the RhB-COL/GO system was achieved. A strong fluorescence dye, Rhodamine B, was modified by chitosan oligosaccharide lactate (COL), which plays a major role in the formation of a positively charged RhB-COL complex. RhB-COL was

Activity-guided identification of (S)-malic acid 1-O-D-glucopyranoside (morelid) and gamma-aminobutyric acid as contributors to umami taste and mouth-drying oral sensation of morel mushrooms (Morchella deliciosa Fr.).

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Although morel mushrooms are widely used as tasty ingredients in savory dishes, knowledge of the key compounds evoking their attractive taste is still very fragmentary. In the present study, taste activity-guided fractionation of an aqueous morel extract by means of the recently developed taste

Synthesis of cyclodextrin polymers containing glutamic acid and their use for the synthesis of Ag nanoparticles.

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Crosslinking and functionalizing agents play crucial roles in the properties/applications of cyclodextrin polymers. Here we report the synthesis of water-insoluble cyclodextrin polymers containing l-glutamic acid. In a first route, β-cyclodextrin was crosslinked with citric acid and subsequently

A catalytic mechanism revealed by the crystal structures of the imidazolonepropionase from Bacillus subtilis.

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Imidazolonepropionase (EC 3.5.2.7) catalyzes the third step in the universal histidine degradation pathway, hydrolyzing the carbon-nitrogen bonds in 4-imidazolone-5-propionic acid to yield N-formimino-l-glutamic acid. Here we report the crystal structures of the Bacillus subtilis

Quantum Strong Coupling with Protein Vibrational Modes.

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In quantum electrodynamics, matter can be hybridized to confined optical fields by a process known as light-matter strong coupling. This gives rise to new hybrid light-matter states and energy levels in the coupled material, leading to modified physical and chemical properties. Here, we report for

Valine needs of male broilers from 42 to 56 days of age.

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An experiment was conducted using Ross x Ross 308 males to estimate the proportion of dietary valine needed to optimize performance in broilers from 42 to 56 d of age. All birds received common feeds from 0 to 42 d, and then experimental diets were given to 56 d of age. A diet consisting of corn,

Study of structural and dynamic characteristics of copper(II) amino acid complexes in solutions by combined EPR and NMR relaxation methods.

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Structural features and dynamical behaviour of the copper(ii) bis-complexes with glycine, d-alanine, d-valine, l-serine, l-aspartic acid, l-glutamic acid, l-lysine, l-proline, and sarcosine were studied by combined EPR and NMR relaxation methods. The cis and trans isomers were unambiguously assigned

A doxorubicin loaded colloidal delivery system for the intravesical therapy of non-muscle invasive bladder cancer using wheat germ agglutinin as targeter.

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Non-muscle invasive bladder cancer is one of the most frequent forms of cancer. Commonly, the superficial tumor is removed by a minimal invasive surgery, mostly followed by the intravesical instillation of cytostatic agents. Although the initial treatment is usually successful, the recurrence rate

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