Issue 35, 2017

Using a chitosan nanolayer as an efficient pH buffer to protect pH-sensitive supramolecular assemblies

Abstract

It is attractive to control the properties of macro objects and films by employing simple nanolayer composites, as in the case of nanoarchitectured Layer-by-Layer (LbL) coating. In this paper, we use chitosan as a surface-based pH buffer to protect adsorbed supramolecular fibres from pH-mediated disassembly. Protons are generated on a titania surface under illumination at 405 nm leading to an appreciable pH change on the surface. We find that supramolecular polymers that are highly sensitive to pH change will not disassemble after irradiation if a nanolayer of chitosan is present. We propose that chitosan can be used as an efficient pH-responsive protective layer for pH sensitive soft materials.

Graphical abstract: Using a chitosan nanolayer as an efficient pH buffer to protect pH-sensitive supramolecular assemblies

Article information

Article type
Paper
Submitted
21 এপ্রিল 2017
Accepted
04 জুলাই 2017
First published
04 জুলাই 2017
This article is Open Access
Creative Commons BY license

Phys. Chem. Chem. Phys., 2017,19, 23843-23848

Using a chitosan nanolayer as an efficient pH buffer to protect pH-sensitive supramolecular assemblies

D. V. Andreeva, A. Kollath, N. Brezhneva, D. V. Sviridov, B. J. Cafferty, H. Möhwald and E. V. Skorb, Phys. Chem. Chem. Phys., 2017, 19, 23843 DOI: 10.1039/C7CP02618H

This article is licensed under a Creative Commons Attribution 3.0 Unported Licence. You can use material from this article in other publications without requesting further permissions from the RSC, provided that the correct acknowledgement is given.

Read more about how to correctly acknowledge RSC content.

Social activity

Spotlight

Advertisements