Complex formation of poly(g1utamic acid) with cupric ions in aqueous solution was investigated by three different methods: optical spectroscopy, optical rotatory dispersion, and electron spin resonance. Formation of a characteristic complex wm found to occur in a p H region suitable for the helix-co
Nature of Cu(II)-poly(glutamic acid) complex in aqueous solution
β Scribed by Hiroko Takesada; Hideo Yamazaki; Akiyoshi Wada
- Publisher
- Wiley (John Wiley & Sons)
- Year
- 1967
- Tongue
- English
- Weight
- 45 KB
- Volume
- 5
- Category
- Article
- ISSN
- 0006-3525
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β¦ Synopsis
On page 717, line 3 in the figure caption of Figure 3 should read: PGA solution;
On page 719, line 5 should read "the sites" rather thaii "three sites.
π SIMILAR VOLUMES
The interaction between ionizable carboxyl groups and the conformation of poly-(glutamic acid) (PGA) in aqueous solution were investigated by the mechanical method. The dynamic rigidity of the PGA solution has a maximum value at the pH corresponding to about 50% neutralization point. This may be due
Four oligomers of a-L-glutamic acid with ends blocked by nonionizable protecting groups were studied in 0.1M NaC104 solution using potentiometric measurements. The titrations were analyzed using a pit-mapping method. The results are compared with those obtained with the corresponding polymer. The su
Methods for the covalent modification in aqueous solution of poly-β₯-Dglutamic acid from Bacillus licheniformis have been studied. Co-derivatization of a synthetic UV-absorbent amine and ethanolamine, using a water-soluble carbodi-imide coupling agent, yielded a water-soluble modified polymer. Deriva