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Magnetic resonance analysis of capillary formation reaction front dynamics in alginate gels
Author(s) -
Maneval James E.,
Bernin Diana,
Fabich Hilary T.,
Seymour Joseph D.,
Codd Sarah L.
Publication year - 2011
Publication title -
magnetic resonance in chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.483
H-Index - 72
eISSN - 1097-458X
pISSN - 0749-1581
DOI - 10.1002/mrc.2788
Subject(s) - chemistry , biopolymer , relaxation (psychology) , dynamics (music) , molecular dynamics , chemical physics , capillary action , front (military) , translational motion , resonance (particle physics) , pulsed field gradient , nuclear magnetic resonance , molecule , polymer , computational chemistry , mechanics , thermodynamics , organic chemistry , mechanical engineering , psychology , social psychology , physics , acoustics , engineering , particle physics
The formation of heterogeneous structures in biopolymer gels is of current interest for biomedical applications and is of fundamental interest to understanding the molecular level origins of structures generated from disordered solutions by reactions. The cation‐mediated physical gelation of alginate by calcium and copper is analyzed using magnetic resonance measurements of spatially resolved molecular dynamics during gel front propagation. Relaxation time and pulse‐field gradient methods are applied to determine the impact of ion front motion on molecular translational dynamics. The formation of capillaries in alginate copper gels is correlated to changes in translational dynamics. Copyright © 2011 John Wiley & Sons, Ltd.