Issue 24, 2016

Ca(ii) and Ce(iii) homogeneous alginate hydrogels from the parent alginic acid precursor: a structural study

Abstract

Alginate hydrogels are suitable for the encapsulation of biomolecules and microorganisms for the building of bioactive materials. Several alternatives to the conventional alginate formulation are being studied for a broad range of biotechnological applications; among them the crosslinking of alginate by lanthanide cations, Ln(III), envisages expanded biomedical applications. The performance of these functional materials is highly related to the microstructure of the alginate matrix, which in turn is affected by the conditions of synthesis. In particular, when a diffusing gradient of the crosslinking cation is involved, microstructure inhomogeneities are expected at the macroscopic level. Here we discuss the subtle differences in the microstructure, as assessed by SAXS (Small Angle X-ray Scattering), established in the direction of the gradient of diffusion of Ca(II) or Ce(III).

Graphical abstract: Ca(ii) and Ce(iii) homogeneous alginate hydrogels from the parent alginic acid precursor: a structural study

Article information

Article type
Paper
Submitted
22 yan 2016
Accepted
30 mar 2016
First published
31 mar 2016

Dalton Trans., 2016,45, 10050-10057

Ca(II) and Ce(III) homogeneous alginate hydrogels from the parent alginic acid precursor: a structural study

J. M. Sonego, P. R. Santagapita, M. Perullini and M. Jobbágy, Dalton Trans., 2016, 45, 10050 DOI: 10.1039/C6DT00321D

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