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

Andreeva, D. V., Kollath, A., Brezhneva, N., Sviridov, D. V., Cafferty, B. J., Möhwald, H., et al. (2017). Using a chitosan nanolayer as an efficient pH buffer to protect pH-sensitive supramolecular assemblies. Physical Chemistry Chemical Physics, 19(35), 23843-23848. doi:10.1039/C7CP02618H.

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Item Permalink: http://hdl.handle.net/11858/00-001M-0000-002E-17BF-4 Version Permalink: http://hdl.handle.net/21.11116/0000-0000-5F29-9
Genre: Journal Article

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 Creators:
Andreeva, D. V., Author
Kollath, A., Author
Brezhneva, N.1, Author              
Sviridov, D. V., Author
Cafferty, B. J., Author
Möhwald, Helmuth2, Author              
Skorb, E. V.1, Author              
Affiliations:
1Katja Skorb (Indep. Res.), Biomaterialien, Max Planck Institute of Colloids and Interfaces, Max Planck Society, ou_2231640              
2Grenzflächen, Max Planck Institute of Colloids and Interfaces, Max Planck Society, ou_1863287              

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Free keywords: Open Access
 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.

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 Dates: 2017-09-21
 Publication Status: Published in print
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 Identifiers: DOI: 10.1039/C7CP02618H
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Title: Physical Chemistry Chemical Physics
  Abbreviation : Phys. Chem. Chem. Phys.
Source Genre: Journal
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Publ. Info: Cambridge, England : Royal Society of Chemistry
Pages: - Volume / Issue: 19 (35) Sequence Number: - Start / End Page: 23843 - 23848 Identifier: ISSN: 1463-9076