The Effect of the Acidic Gas Pollutant on Wool Keratin Fiber Structure
Increase in air pollution caused by acidic gases, such as nitrogen dioxide, call for the need to study potential effects on the structure of textile materials. Wool is a natural protein fiber which is easily damaged due to rich reaction positions and cross-linked bonds in the fiber. This study repor...
| Main Authors: | , , , , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Taylor & Francis Group
2022-11-01
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| Series: | Journal of Natural Fibers |
| Subjects: | |
| Online Access: | http://dx.doi.org/10.1080/15440478.2021.1994093 |
| _version_ | 1797679985445568512 |
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| author | Zhe Jiang Rubing Bai Jinfang Zhang Ende Li Yifan Cui Ning Zhang Nan Zhang Qiang Wang |
| author_facet | Zhe Jiang Rubing Bai Jinfang Zhang Ende Li Yifan Cui Ning Zhang Nan Zhang Qiang Wang |
| author_sort | Zhe Jiang |
| collection | DOAJ |
| description | Increase in air pollution caused by acidic gases, such as nitrogen dioxide, call for the need to study potential effects on the structure of textile materials. Wool is a natural protein fiber which is easily damaged due to rich reaction positions and cross-linked bonds in the fiber. This study reports, for the first time, effect of nitrogen dioxide, as a model acid gas pollutant, on the structure of wool. On the macro level, wool fabric undergoes strength loss after incubation in nitrogen dioxide for 6 h. Furthermore, although there was no obvious difference on the surface morphology as shown by SEM analysis, FTIR and Raman tests showed that the probable damage mechanism is by hydrolysis of amino bond, and oxidation of tyrosine residues and disulfide bonds, which was ascertained using XPS and amino acid analysis. In addition, crystallinity degree and α-helix structure content decreased after nitrogen dioxide treatment as shown by XRD and NMR results. These findings show that nitrogen dioxide has significant effect on the structure of wool. The study offers a novel approach for investigation of the interaction between gas pollutants and protein fiber, and provide information for protection of textiles against similar pollutants. |
| first_indexed | 2024-03-11T23:23:09Z |
| format | Article |
| id | doaj.art-c554e58d653444acb577e3db9116af98 |
| institution | Directory Open Access Journal |
| issn | 1544-0478 1544-046X |
| language | English |
| last_indexed | 2024-03-11T23:23:09Z |
| publishDate | 2022-11-01 |
| publisher | Taylor & Francis Group |
| record_format | Article |
| series | Journal of Natural Fibers |
| spelling | doaj.art-c554e58d653444acb577e3db9116af982023-09-20T13:25:58ZengTaylor & Francis GroupJournal of Natural Fibers1544-04781544-046X2022-11-011915105131052510.1080/15440478.2021.19940931994093The Effect of the Acidic Gas Pollutant on Wool Keratin Fiber StructureZhe Jiang0Rubing Bai1Jinfang Zhang2Ende Li3Yifan Cui4Ning Zhang5Nan Zhang6Qiang Wang7Jiangnan UniversityDezhou UniversityZhejiang Haoyu Science and Technology CoHuzhou Youjia Biotechnology Co., LtdJiangnan UniversityJiangnan UniversityJiangnan UniversityJiangnan UniversityIncrease in air pollution caused by acidic gases, such as nitrogen dioxide, call for the need to study potential effects on the structure of textile materials. Wool is a natural protein fiber which is easily damaged due to rich reaction positions and cross-linked bonds in the fiber. This study reports, for the first time, effect of nitrogen dioxide, as a model acid gas pollutant, on the structure of wool. On the macro level, wool fabric undergoes strength loss after incubation in nitrogen dioxide for 6 h. Furthermore, although there was no obvious difference on the surface morphology as shown by SEM analysis, FTIR and Raman tests showed that the probable damage mechanism is by hydrolysis of amino bond, and oxidation of tyrosine residues and disulfide bonds, which was ascertained using XPS and amino acid analysis. In addition, crystallinity degree and α-helix structure content decreased after nitrogen dioxide treatment as shown by XRD and NMR results. These findings show that nitrogen dioxide has significant effect on the structure of wool. The study offers a novel approach for investigation of the interaction between gas pollutants and protein fiber, and provide information for protection of textiles against similar pollutants.http://dx.doi.org/10.1080/15440478.2021.1994093secondary structurenitrogen dioxidestrength losstyrosinewool protein fiberdisulfide bond |
| spellingShingle | Zhe Jiang Rubing Bai Jinfang Zhang Ende Li Yifan Cui Ning Zhang Nan Zhang Qiang Wang The Effect of the Acidic Gas Pollutant on Wool Keratin Fiber Structure Journal of Natural Fibers secondary structure nitrogen dioxide strength loss tyrosine wool protein fiber disulfide bond |
| title | The Effect of the Acidic Gas Pollutant on Wool Keratin Fiber Structure |
| title_full | The Effect of the Acidic Gas Pollutant on Wool Keratin Fiber Structure |
| title_fullStr | The Effect of the Acidic Gas Pollutant on Wool Keratin Fiber Structure |
| title_full_unstemmed | The Effect of the Acidic Gas Pollutant on Wool Keratin Fiber Structure |
| title_short | The Effect of the Acidic Gas Pollutant on Wool Keratin Fiber Structure |
| title_sort | effect of the acidic gas pollutant on wool keratin fiber structure |
| topic | secondary structure nitrogen dioxide strength loss tyrosine wool protein fiber disulfide bond |
| url | http://dx.doi.org/10.1080/15440478.2021.1994093 |
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