Nimal Subasinghe

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Bicyclic thiazolidine lactam peptidomimetics 3-5 have been synthesized as potential analogues of the dopamine receptor modulating peptide Pro-Leu-Gly-NH2 (PLG). Peptidomimetics 3 and 4 were designed to constrain two, psi 2 and phi 3, of the four torsion angles that define a beta-turn to values approximating those found for a type-II beta-turn, while 5 was(More)
Hippocampal CA1 pyramidal cell neurons are sensitized over 30-fold to depolarization by L-2-amino-4-phosphonobutanoic acid (L-AP4) following exposure to L-quisqualic acid. This phenomenon has been termed the QUIS effect. In the present study several novel L-quisqualic acid analogues have been synthesized and tested for their interaction with the different(More)
The following structural and conformationally constrained analogues of Ac-Asp-Glu-OH (1) were synthesized: Ac-Glu-Glu-OH (2), Ac-D-Asp-Glu-OH (3), Ac-Glu-Asp-OH (4), Ac-Asp-Asp-OH (5), Ac-Asp-3-aminohexanedioic acid (6), Ac-3-amino-3-(carboxymethyl)propanoyl-Glu-OH (7), N-succinyl-Glu-OH (8), N-maleyl-Glu-OH (9), N-fumaryl-Glu-OH (10), and Ac-delta(More)
A plate-type induction-electrostatic separator unit has been designed and assembled to study the removal of particulate copper from cable scrap which contains plastics for recycling. From test results, a copper rejection of 99.95% and plastics recovery of 98.8% could be successfully achieved under conditions of over an 437.5V/cm electric field, relative(More)
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