Post-Polymerization Modification of Poly(L-glutamic acid) with D-(+)-Glucosamine

Post-polymerization modification of poly(L-glutamic acid) with D-(+)-glucosamine.

Carboxyl functional groups of poly(L-glutamic acid) (PGlu) were modified with a D-(+)-glucosamine (GlcN) by amidation using 4-(4,6-dimethoxy-1,3,5-triazin-2-yl)-4-methylmorpholinium chloride (DMTMM) as a coupling reagent. The coupling reaction was performed in aqueous medium without protection of hydroxyl functional groups of D-(+)-glucosamine. Poly(L-glutamic acid) and GlcN functionalized poly...

THE OXIDATION OF HEXOSAMINES : d-GLUCOSAMINE AND d-GLUCOSAMINIC ACID

The estimation of D- and L-glutamic acid in proteins.

Brand, E., Harris, M. M. & Biloon, S. (1930). J. biol. Chem. 86, 315. Challenger, F. & Simpson, M. I. (1947). Biochem. J. 41, xl. Challenger, F. & Simpson, M, I. (1948). J. chem. Soc. p. 1591. Crum Brown, A. & Fraser, T. R. (1872). Trans. Roy. Soc. Edinb. 7, 663. Du Vigneaud, V. (1942-3). Harvey Lect. 39. Du Vigneaud, V., Moyer, A. W. & Chandler, J. P. (1948). J. biol. Chem. 174, 477. Dubnoff, ...

Covalent modification of glassy carbon electrode with glutamic acid for simultaneous determination of uric acid and ascorbic acid.

A novel covalently modified glassy carbon electrode with glutamic acid has been fabricated via an electrochemical oxidation procedure and was applied to the catalytic oxidation of uric acid (UA) and ascorbic acid (AA), reducing the overpotentials by about 0.2 V and 0.3 V, respectively. Based on its strong catalytic function toward the oxidation of UA and AA, the modified electrode resolved the ...

Determination of Glutamic Acid