Issue 8, 2014

Bioinspired assembly of layered double hydroxide/carboxymethyl chitosan bionanocomposite hydrogel films

Abstract

Carboxymethyl chitosan (CMC) intercalated Mg–Al layered double hydroxides (C-LDHs) with high dispersion in the CMC matrix were successfully synthesised by a one-pot method using a facile biopolymer-assisted approach in the presence of CMC under hydrothermal conditions. Highly oriented, flexible and glossy self-supporting C-LDH/CMC bionanocomposite hydrogel films with good mechanical properties were bioinspired assembled using C-LDH nanoplatelets and CMC molecules as building blocks via the solvent evaporation process. The results of X-ray diffraction and scanning electron microscopy showed that the bionanocomposite film had a bioinspired layered structure. The film thickness and equilibrium swelling ratio of the C-LDH/CMC bionanocomposite film could be changed by adjusting the C-LDH mass content. The film with a high C-LDH mass content had high swelling stability, which may be attributed to the LDH nanoplatelets that could act as crosslinkers to reinforce the bionanocomposite film structure. Lysozyme could be immobilised in the C-LDH/CMC bionanocomposite hydrogel film through the electrostatic interaction.

Graphical abstract: Bioinspired assembly of layered double hydroxide/carboxymethyl chitosan bionanocomposite hydrogel films

Supplementary files

Article information

Article type
Paper
Submitted
15 Nov 2013
Accepted
04 Dec 2013
First published
06 Dec 2013

J. Mater. Chem. B, 2014,2, 1024-1030

Author version available

Bioinspired assembly of layered double hydroxide/carboxymethyl chitosan bionanocomposite hydrogel films

Y. Wang and D. Zhang, J. Mater. Chem. B, 2014, 2, 1024 DOI: 10.1039/C3TB21608J

To request permission to reproduce material from this article, please go to the Copyright Clearance Center request page.

If you are an author contributing to an RSC publication, you do not need to request permission provided correct acknowledgement is given.

If you are the author of this article, you do not need to request permission to reproduce figures and diagrams provided correct acknowledgement is given. If you want to reproduce the whole article in a third-party publication (excluding your thesis/dissertation for which permission is not required) please go to the Copyright Clearance Center request page.

Read more about how to correctly acknowledge RSC content.

Social activity

Spotlight

Advertisements