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ESR investigation of the binding of acidic biopolymers to synthetic apatite
Author(s) -
Peckauskas R. A.,
Termine J. D.,
Pullman I.
Publication year - 1976
Publication title -
biopolymers
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.556
H-Index - 125
eISSN - 1097-0282
pISSN - 0006-3525
DOI - 10.1002/bip.1976.360150312
Subject(s) - chemistry , macromolecule , electron paramagnetic resonance , apatite , sodium , polymer , phosvitin , inorganic chemistry , calcium , mineral , crystallography , organic chemistry , mineralogy , nuclear magnetic resonance , biochemistry , physics , protein kinase a , enzyme
The interaction between synthetic crystalline calcium phosphate (apatite) and acidic macromolecules (sodium polyacrylate, sodium poly( L ‐glutamate), chondroitin sulfate, phosvitin) was investigated by electron spin resonance spectroscopy of mineral‐macromolecule complexes doped with vanadyl ion (VO ++ ) as a paramagnetic probe. Changes in magnetic parameters were interpreted in terms of bonding between mineral and macromolecule. The VO ++ probe data indicated that polymer acidic functional groups were bound to mineral surfaces in all cases.