Journal ArticleDOI
Evidence for egg-box-compatible interactions in calcium-alginate gels from fiber X-ray diffraction.
TLDR
The observations indicate that the junction zone involves dimerization of polymer chains through Ca2+ coordination according to the egg-box model, which involves polymer chains packed on a hexagonal lattice with a lattice constant a = 0.66 nm.About:
This article is published in Biomacromolecules.The article was published on 2007-05-27. It has received 382 citations till now. The article focuses on the topics: Calcium alginate & Lattice constant.read more
Citations
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Journal ArticleDOI
Alginate derivatization: a review of chemistry, properties and applications.
Siddhesh N. Pawar,Kevin J. Edgar +1 more
TL;DR: Progress towards controlled synthesis of alginate derivatives, and the properties and applications of these derivatives are reviewed.
Journal ArticleDOI
Advances in biomedical applications of pectin gels
TL;DR: Pectin structure, sources and extraction procedures have been discussed focussing on the properties of the polysaccharide that can be tuned to optimize the gels for a desired application and possess a fundamental role in application of pectin in the biomedical field.
Journal ArticleDOI
Structural Characterization of Sodium Alginate and Calcium Alginate
Hadas Hecht,Simcha Srebnik +1 more
TL;DR: It is shown that Ca(2+) ions in general facilitate chain aggregation and gelation, however, aggregation is predominantly affected by alginate monomer composition, which is found to correlate with chain stiffness under certain solution conditions.
Journal ArticleDOI
Moisture and Oxygen Barrier Properties of Cellulose Nanomaterial-Based Films
Jinwu Wang,Jinwu Wang,Douglas J. Gardner,Nicole M. Stark,Douglas W. Bousfield,Mehdi Tajvidi,Zhiyong Cai +6 more
TL;DR: In this article, the performance of cellulose nanomaterials (CNMs) acting as a barrier against moisture and oxygen permeation in CNM films, CNM-coated polymers and papers, and CNM reinforced polymer composites is analyzed.
Journal ArticleDOI
Egg-box model-based gelation of alginate and pectin: A review
TL;DR: The intrinsic and extrinsic factors that can influence the gelation of alginate and pectin were summarized and the similarity and difference in their gelation mechanism was summarized.
References
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Journal ArticleDOI
Biological interactions between polysaccharides and divalent cations: The egg‐box model
TL;DR: It is shown that spedfic binding of divalent cations to a polysaechafide polyelectro]ym, leading firm cohesion between the chains, can cause characteristic effects in the c~rcutar diehroism spectrum which are understandabb in terms of modem theo~, [ l ].
Journal ArticleDOI
A review of the biochemistry of heavy metal biosorption by brown algae
TL;DR: The emphasis is on outlining the biochemical properties of the brown algae that set them apart from other algal biosorbents, including alginate and fucoidan, which are chiefly responsible for heavy metal chelation.
Journal ArticleDOI
Molecular Basis of Ca2+-Induced Gelation in Alginates and Pectins: The Egg-Box Model Revisited
Isabelle Braccini,Serge Pérez +1 more
TL;DR: The body of these results corroborates the two-stage process in the mechanism of calcium gelation, where the formation of strongly linked dimer associations is followed by theformation of weak inter-dimer associations mainly governed by electrostatic interactions.
Journal ArticleDOI
Alginate based new materials.
TL;DR: The question of the specifications required by a polymer for applications in some biomedical areas will be discussed and the properties of alginate solutions and gels suggest biomedical and pharmaceutical uses.
Journal ArticleDOI
Chiroptical and stoichiometric evidence of a specific, primary dimerisation process in alginate gelation
TL;DR: In this article, it was shown that the primary mechanism of interchain association is by dimerisation of poly-L -guluronate chain segments in a regular, buckled, two-fold conformation related to that characterized for the free acid in the solid state, with tight interchain chelation of calcium to the carboxylate groups on the interior faces of the dimer.
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Molecular Basis of Ca2+-Induced Gelation in Alginates and Pectins: The Egg-Box Model Revisited
Isabelle Braccini,Serge Pérez +1 more