Dimeric (isoquinoline)(N-salicylidene-D,L-glutamato)copper(II) ethanol solvate.

The title racemic complex, bis[mu-N-(2-oxidobenzylidene)-D,L-glutamato(2-)]bis[(isoquinoline)copper(II)] ethanol disolvate, [Cu(2)(C(12)H(11)NO(5))(2)(C(9)H(7)N)(2)].2C(2)H(6)O, adopts a square-pyramidal Cu(II) coordination mode with a tridentate N-salicylideneglutamato Schiff base dianion and an isoquinoline ligand bound in the basal plane. The apex of the pyramid is occupied by a phenolic O atom from the adjacent chelate molecule at an apical distance of 2.

Study of immobilized and extracellular aminopeptidases of watermelon.

Watermelon cells after permeabilization in Tween 80 were immobilized by glutaraldehyde without any carrier. Cells immobilized by cross-linking demonstrated significantly lower aminopeptidase activities than untreated cells. Pectate and alginate hydrogels were used successfully for immobilization of watermelon cells which retained activities of some aminopeptidases.