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Electrospun poly(aspartic acid) gel scaffolds for artificial extracellular matrix
, 2014Biocompatible synthetic polymer gel scaffolds for tissue engineering and regenerative medicine were prepared by reactive electrospinning. Protein-like nano- and microfibres from chemically crosslinked polysuccinimide were obtained.
Kristóf Molnár +5 more
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Aspartic acid-promoted highly selective and sensitive colorimetric sensing of cysteine in rat brain.
Analytical Chemistry, 2012Direct selective determination of cysteine in the cerebral system is of great importance because of the crucial roles of cysteine in physiological and pathological processes.
Qin Qian +5 more
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Core–shell nanogel of PEG–poly(aspartic acid) and its pH-responsive release of rh-insulin
, 2013A new synthesis approach for the preparation of pH-responsive nanogels via core hydrolysis of cross-linked polymer micelles is proposed. The core–shell nanogels of poly(ethylene glycol)–poly(aspartic acid) exhibited a pH-responsive swelling behavior ...
Cw Park, Hm Yang, H. Lee, Jdk Kim
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SYNTHESIS OF ASPARTIC ACID BY LACTOBACILLUS ARABINOSUS
Canadian Journal of Microbiology, 1957Lactobacillus arabinosus was grown on a complex synthetic medium and the synthesis of aspartic acid studied using the tracer compounds carbon dioxide-C14, glucose-6-C14, glucose-2-C14, or ammonium chloride-N15. The β-carboxyl carbon of aspartic acid was derived to a major extent or solely from carbon dioxide-C14and no radioactivity was found in the α ...
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Racemization of aspartic acid in human proteins
Ageing Research Reviews, 2002Aspartic acid racemization (AAR) represents one of the major types of non-enzymatic covalent modification that leads to an age-dependent accumulation of abnormal protein in numerous human tissues. In vivo racemization is an autonomic process during the "natural" ageing of proteins, and correlates with the age of long-lived proteins.
Matthew J. Collins, Stefanie Ritz-Timme
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Enzymic Deamination of Aspartic Acid
Nature, 1938FROM the cell-free solution of B. fluorescens liquefaciens, which has a powerful aspartase effect1, we have isolated aspartase by adding acetic acid up to pH 4.6 at 0° C. The precipitate thereby formed (precipitation begins at pH 4.8) gives, when rapidly filtered and dissolved in M/15 phosphate buffer (pH 7), a solution which possesses considerable ...
Artturi I. Virtanen, Jorma Erkama
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Six conformers of neutral aspartic acid identified in the gas phase.
Physical Chemistry, Chemical Physics - PCCP, 2010The multiconformational landscape of the proteogenic amino acid aspartic acid, the simplest amino acid with two carboxylic groups, has been explored for the first time in the gas phase. Solid aspartic acid (m.p.
M. Sanz +2 more
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Refinement of DL-aspartic acid [PDF]
Acta Crystallographica Section B Structural Crystallography and Crystal Chemistry, 1973 Crystals of DL-aspartic acid (C4NO4H7) were grown at room temperature from an aqueous solution of the commercially available sample. The crystals be- long to the monoclinic system with cell dimensions a= 18.947+0.002, b= 7.433 + 0.001, c=9.184 + 0.001 A and fl=123.75+0-02 °. The systematic absences are: hkl, h + k = 2n + 1 and hOl, 1= 2n + 1. The space
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Aspartic-Acid-Assisted Hydrothermal Growth and Properties of Magnetite Octahedrons
, 2010A biomolecule-assisted hydrothermal route to the fabrication of magnetite (Fe3O4) with uniform microsized and regular octahedral morphology has been successfully developed by use of toxic-free aspartic acid as reducing reagent and FeCl3·6H2O as iron ...
Xiao-Fei Qu +3 more
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The Aspartic Acid Family of Amino Acids: Biosynthesis
2004Aspartic acid can be synthesized by two different reactions, both of which involve a substrate that is a participant in the tricarboxylic acid cycle. It can be obtained by transamination of oxaloacetic acid with glutamic acid, whose biosynthesis will be examined later: $$ \begin{array}{l}\kern6.84em \\ {}\begin{array}{c}\hfill \mathrm{COOH}-\mathrm ...
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