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Protection of immobilized sulfhydryl groups against autooxidation by alterations in their microenvironment
Authors:Alexander M. Klibanov  Thomas E. Barta
Affiliation:(1) Laboratory of Applied Biochemistry, Department of Nutrition and Food Science, Massachusetts Institute of Technology, 02139 Cambridge, MA, USA
Abstract:Immobilized sulfhydryl groups were prepared by partial thiolation of NH2-glass beads. The microenvironment of the immobilized SH groups was varied by different chemical modifications of neighboring NH2 groups. Introduction of a strong charge in the surroundings of immobilized sulfhydryls results in their dramatic stabilization against autooxidation. This effect is due to the salting of O2 from the surface microlayer of the thiolated beads.
Keywords:Sulfhydryl reagent  immobilized reagent  porous glass  autooxidation, of immobilized sulflydryl groups  heavy metal removal, and sulfhydryl group autooxidation  mercury, and sulfhydryl group autooxidation
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