New insights into the nature of the wool fibre surface

Huson, Mickey G.; Evans, David J.; Church, Jeffrey S.; Hutchinson, Sally A.; Maxwell, J. M.; Corino, Gary L.

doi:10.1016/j.jsb.2008.04.011

Cited by 55 publications

(45 citation statements)

References 56 publications

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“…Scheme 1 presents a proposed coloration process of silver NPs on wool fibers. Wool fibers consist of keratin containing different amino-acid monomers, surrounded by overlapping cuticle cells [51][52][53]. As a protein fiber, wool is abundant in amino and carboxyl groups, so the surface charge of wool fibers is related to the pH value [54,55].…”

Section: Reduction In Cfu ð%þ ¼ ðC à Aþ=c â 100%mentioning

confidence: 99%

Application of anisotropic silver nanoparticles: Multifunctionalization of wool fabric

Tang

Wang

et al. 2011

Journal of Colloid and Interface Science

167

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Section: Reduction In Cfu ð%þ ¼ ðC à Aþ=c â 100%mentioning

confidence: 99%

Application of anisotropic silver nanoparticles: Multifunctionalization of wool fabric

Tang

Wang

et al. 2011

Journal of Colloid and Interface Science

167

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“…It is dry to touch and not readily wet-out by liquid water. In line with other polymers having functional surfaces, the surface of wool is believed to rearrange in different environments (55,56)). In textiles, the amount of water absorbed is generally expressed as a percentage of the dry weight.…”

Section: Water Sorptionmentioning

confidence: 71%

Wool: Structure, Properties, and Processing

Rippon

Christoe

Denning

et al. 2016

Encyclopedia of Polymer Science and Technology

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Wool, the fibrous coating from sheep, is the most important animal fiber used by the textile industry. It has been used continuously for several thousand years, the earliest type of fabric made from wool probably being a felt. Although the relative importance of wool as a textile fiber has declined with the increasing use of synthetic fibers, it remains important in some sectors of the market. This article discusses raw wool specification, fiber growth, its complex morphological and chemical structure, and the physical properties that make wool unique among textile fibers. Also discussed are the processing steps used to transform raw wool into consumer products, namely, scouring, carbonizing, carding, spinning, setting, dyeing, bleaching, printing, and treatments to reduce felting shrinkage, insect damage, and flammability. A novel textile fiber made from wool (Optim TM , CSIRO) is also described.

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“…The outermost surface of the cuticle cells of the wool fibre contains hydrophobic fatty acids thought to be bound by thioester and acyl linkages to protein residues such as cysteine and serine (Evans, Leeder, Rippon, & Rivett, 1985;Huson et al, 2008;Negri, Cornell, & Rivett, 1993). The underlying protein component of this proteolipid structure is often referred to as the epicuticle.…”

Section: Introductionmentioning

confidence: 99%

“…Modification of the wool fibre surface to produce permanent functional finishes aimed at improving the properties of wool textiles has been the aim of researchers for a number of years (Huson et al, 2008;Meade, Caldwell, et al, 2008). An example of this is the commercial application of polymer treatments to prevent shrinking during washing, e.g.…”

Section: Introductionmentioning

confidence: 99%

Characterisation of the bound lipids at the wool fibre surface by time of flight secondary ion mass spectrometry (ToF-SIMS)

Rankin

Carr

2013

Journal of The Textile Institute

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Negative ion time of flight secondary ion mass spectrometry (ToF-SIMS) analysis of rigorously cleaned untreated, hydroxylamine and potassium hydroxide (KOH)-treated wool fabrics, produced with minimal finishing, has revealed the possible presence of hitherto unidentified bound acids at the surface of the wool fibre. Spectral peaks have been assigned to C 8 through to C 22 fatty acids, the odd numbered acids of which have been assigned to anteiso acids, (a), akin to the anteiso acid 18-methyleicosanoic acid known to be the dominant fatty acid bound to keratin fibre surfaces. This has included the assignment of some small peaks to hydroxylated aC 18 H 36 (OH)COS À and aC 20 H 40 (OH)COS À species, where the hydroxyl group is attached to the asymmetric 16 or 18 numbered carbon atom in the alkyl chain, respectively. The study has confirmed that many of the acids are bound to the fibre surface by thioester linkages (about 70%) and that the remainder is bound by oxygen ester acyl linkages. ToF-SIMS analysis of hydroxylaminetreated wool has confirmed the removal of all the thioester bound surface lipids, as well as lesser quantities but not all of the acyl bound lipids. In contrast, a 2 h KOH treatment removes all surface accessible bound lipids. Positive ion ToF-SIMS spectral analyses have not proved useful in characterising the possibly thiol rich fibre surface remaining after hydroxylamine treatment. The formation of characteristic immonium ions from surface cysteine residues after hydroxylamine treatment has been shown not to occur for free cysteine and so is unlikely to occur for such residues at the wool fibre surface. Scanning electron microscopy and transmission electron microscopy analyses have also been performed to assess the extent of the hydroxylamine reaction with the fibre. The implications of these findings for currently proposed models of the wool fibre surface, and for exploiting reactions of hydroxylamine followed by other electrophilic reagents to produce modified wool surfaces, are also discussed.

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New insights into the nature of the wool fibre surface

Cited by 55 publications

References 56 publications

Application of anisotropic silver nanoparticles: Multifunctionalization of wool fabric

Application of anisotropic silver nanoparticles: Multifunctionalization of wool fabric

Wool: Structure, Properties, and Processing

Characterisation of the bound lipids at the wool fibre surface by time of flight secondary ion mass spectrometry (ToF-SIMS)

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