Biopolymer metal catalysts for the hydrolysis of nerve gases.

Abstract:

:Glucosamine oligomers--monomer through tetramer--form complexes with Cu2+ that catalyse the hydrolysis of the 'nerve gas' 1,2,2-trimethylpropyl- methylphosphonofluroidate (soman) by cleaving the P-F bond. A 1/1 glucosamine/Cu2+ ratio whether as glucosamine or glucosamine units, gives the highest hydrolytic rate over the 11.5/1 to 1/1 range. This trend also appears to hold for a glucosamine polymer, chitosan, which, when complexed with Cu2+ also hydrolyzes soman. The relatively low rate of hydrolysis by this polymer-Cu2+ complex, while not yet explainable, is consistent with an extrapolation of the monomer-through-tetramer series. The question may be raised as to whether these biopolymer metal complexes provide any clues to the involvement of Mn2+ in the functioning of one class of P-F cleaving enzymes.

journal_name

Chem Biol Interact

authors

Hoskin FC,Rajan KS,Remy D,Walker JE

doi

10.1016/0009-2797(93)90031-s

subject

Has Abstract

pub_date

1993-06-01 00:00:00

pages

109-16

issue

1-3

eissn

0009-2797

issn

1872-7786

pii

0009-2797(93)90031-S

journal_volume

87

pub_type

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