Aminoethyl substitution enhances the self-assembly properties of an aminocellulose as a potential archaeological wood consolidant

WAKEFIELD, JMK, HAMPE, R, GILLIS, RB, SITTERLI, A, ADAMS, GG, KUTZKE, H, HEINZE, T and HARDING, SE (2020). Aminoethyl substitution enhances the self-assembly properties of an aminocellulose as a potential archaeological wood consolidant. European Biophysics Journal, 49, 791-798.

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Abstract

The 6-deoxy-6-aminocelluloses—or “aminocelluloses”—are a class of synthetic natural cellulose derivatives which are mostly aqueous soluble and have excellent film-forming properties. Recent studies have connected these properties at the molecular level with protein-like self-associative behaviour for a range of aminocelluloses including a 6-deoxy-6-(ω-aminoethyl) aminocellulose AEA-1 with the association being a two-stage process—a reversible oligomerisation followed by further (semi-reversible) aggregation into larger structures. Here, we synthesise and compare a new 6-deoxy-6-(ω-aminoethyl) aminocellulose AEA-1′ with different degree of substitution with one with further alkyl derivatisation, namely 6-deoxy-6-(ω-hydroxyethyl) aminocellulose HEA-1′. As with AEA-1, sedimentation velocity and sedimentation equilibrium in the analytical ultracentrifuge still show a two-stage process for both AEA-1′ and HEA-1′, with the latter giving higher molar masses. The consequences of these properties for use as consolidants for archaeological wood are considered.

Item Type:	Article
Uncontrolled Keywords:	Biophysics; 0202 Atomic, Molecular, Nuclear, Particle and Plasma Physics; 0299 Other Physical Sciences; 0601 Biochemistry and Cell Biology
Identification Number:	https://doi.org/10.1007/s00249-020-01451-y
Page Range:	791-798
SWORD Depositor:	Symplectic Elements
Depositing User:	Symplectic Elements
Date Deposited:	03 May 2023 11:19
Last Modified:	03 May 2023 11:19
URI:	https://shura.shu.ac.uk/id/eprint/31138

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