Cellulose Dissolved in Ionic Liquids for Modification of the Shape of Keratin Fibers

Yuwei Liu; Su Jing; Diana Carvalho; Jiajia Fu; Madalena Martins; Artur Cavaco-Paulo

doi:10.1021/acssuschemeng.0c08945

Cellulose Dissolved in Ionic Liquids for Modification of the Shape of Keratin Fibers

ACS Sustainable Chemistry & Engineering ◽

10.1021/acssuschemeng.0c08945 ◽

2021 ◽

Vol 9 (11) ◽

pp. 4102-4110

Author(s):

Yuwei Liu ◽

Su Jing ◽

Diana Carvalho ◽

Jiajia Fu ◽

Madalena Martins ◽

...

Keyword(s):

Ionic Liquids ◽

Keratin Fibers

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Ionic liquids as novel solvents for the dissolution and blending of wool keratin fibers

Green Chemistry ◽

10.1039/b502547h ◽

2005 ◽

Vol 7 (8) ◽

pp. 606 ◽

Cited By ~ 249

Author(s):

Haibo Xie ◽

Shenghai Li ◽

Suobo Zhang

Keyword(s):

Ionic Liquids ◽

Keratin Fibers ◽

Wool Keratin

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Dissolution of natural polymers in ionic liquids: A review

e-Polymers ◽

10.1515/epoly.2012.12.1.317 ◽

2012 ◽

Vol 12 (1) ◽

Cited By ~ 13

Author(s):

Zhuojun Meng ◽

Xuejing Zheng ◽

Keyong Tang ◽

Jie Liu ◽

Shufa Qin

Keyword(s):

Ionic Liquids ◽

High Strength ◽

Polymer Materials ◽

Structure And Properties ◽

Natural Polymer ◽

Natural Polymers ◽

Keratin Fibers ◽

Strength And Stiffness ◽

Living Organisms ◽

Chitin And Chitosan

AbstractNatural polymers are produced by living organisms, e.g. plants, animals, microorganisms. Natural polymer materials have gained increasing attention due to their high strength and stiffness combined with carbon neutral, biocompatibility, biodegradability, renewability and sustainability. However, due to the strong interand intra-molecular hydrogen bonds, many natural polymers are extremely difficult to be dissolved in water or traditional organic solvents. The processing difficulties tremendously limit the applications of natural polymers in many fields. Recently, using ionic liquids (ILs) as novel solvents to dissolve natural polymers has attracted increasing attention. ILs has been shown to be highly effective at dissolving some natural polymers to technically useful concentrations. In this article, the structure and basic properties of ILs are introduced; the recent progress is reviewed in the dissolution of several important natural polymers using ionic liquids, including cellulose, chitin and chitosan, wool keratin fibers, silk fibroin and collagen fibers. The dissolution mechanisms of natural polymers using ILs as solvents are analyzed. The structure and properties of native and regenerated natural polymers are discussed in details.

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Ruthenium Red Staining of Human Hard Keratin Fibers

Proceedings, annual meeting, Electron Microscopy Society of America ◽

10.1017/s0424820100054005 ◽

1982 ◽

Vol 40 ◽

pp. 278-279

Author(s):

M. C. Buhrer ◽

R. A. Mathews

Keyword(s):

Human Hair ◽

Ruthenium Red ◽

Acid Mucopolysaccharides ◽

Biochemical Studies ◽

Keratin Fibers ◽

Ruthenium Red Staining ◽

Extracellular Materials

Ruthenium red has been used as a stain to demonstrate a variety of extracellular materials, especially acid mucopolysaccharides. It also reacts with certain intracellular and extracellular lipids. Since biochemical studies in our laboratory demonstrated the presence of a variety of monosaccharides in human hair ruthenium red staining procedures were adopted in order to evaluate the presence and morphological location of acid oligosaccharides in the keratinized aspect of hair.

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