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Magnetic resonance analysis of capillary formation reaction front dynamics in alginate gels

J. E. Maneval ; Diana Bernin (Institutionen för kemi- och bioteknik, Teknisk ytkemi ; SuMo Biomaterials) ; H. T. Fabich ; J. D. Seymour ; S. L. Codd
Magnetic Resonance in Chemistry (0749-1581). Vol. 49 (2011), 10, p. 627-640.
[Artikel, refereegranskad vetenskaplig]

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.

Nyckelord: pulsed-field gradient, gelation, dissipative dynamics, capillary, formation, relaxation, alginate, magnetic resonance, MRI, NMR, heavy-metal uptake, calcium cations, glassy-polymers, imaging mri, relaxation, transition, microscopy, diffusion, gelation, scaffolds

Denna post skapades 2011-10-20. Senast ändrad 2016-04-04.
CPL Pubid: 147493


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Institutioner (Chalmers)

Institutionen för kemi- och bioteknik, Teknisk ytkemi (2005-2014)
SuMo Biomaterials



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