Cation-Specific Effects on the Self-Assembly of Collagen Molecules Mediated by Acetate on Mica Surface Observed with Atomic Force Microscopy
The well-organized collagen layers on mica surface have drawn extensive attention for its essential applications and studies on the process of self-assembly as a model system. In this work, collagen extracted from fish scales by acid-base method was used to explore the self-assembly characters, and...
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| Format: | Article |
| Language: | English |
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Wiley
2017-01-01
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| Series: | Journal of Food Quality |
| Online Access: | http://dx.doi.org/10.1155/2017/1692975 |
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| author | Zhiwei Wang Qi Xiao Xuan Song Yunfei Wan Jie Zhu |
| author_facet | Zhiwei Wang Qi Xiao Xuan Song Yunfei Wan Jie Zhu |
| author_sort | Zhiwei Wang |
| collection | DOAJ |
| description | The well-organized collagen layers on mica surface have drawn extensive attention for its essential applications and studies on the process of self-assembly as a model system. In this work, collagen extracted from fish scales by acid-base method was used to explore the self-assembly characters, and atomic force microscopy was applied to observe the collagen assembled on mica surface mediated by acetate with four different cations, including K+, Na+, Mg2+, and Ca2+. It showed that cations might influence the interaction between collagen fibrils and mica surface at high ionic concentration. And a similar network structure was acquired with uniform pore size for four kinds of acetates; nearly ranged collagen fibrils in the same direction were collected in Mg2+ solutions, while flat films with some fibrils were achieved in K+ solutions. The Hofmeister series and Collins’ model were adapted to explain the effects of cations and acetate on the self-assembly of collagen. These results and analysis would be helpful for directing the pattern of collagen assembly on a solid surface with a potential application in food science and engineering. |
| format | Article |
| id | doaj-art-f11185da0bd4465cb89835495ccfa12e |
| institution | Kabale University |
| issn | 0146-9428 1745-4557 |
| language | English |
| publishDate | 2017-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Journal of Food Quality |
| spelling | doaj-art-f11185da0bd4465cb89835495ccfa12e2025-02-03T06:12:04ZengWileyJournal of Food Quality0146-94281745-45572017-01-01201710.1155/2017/16929751692975Cation-Specific Effects on the Self-Assembly of Collagen Molecules Mediated by Acetate on Mica Surface Observed with Atomic Force MicroscopyZhiwei Wang0Qi Xiao1Xuan Song2Yunfei Wan3Jie Zhu4Laboratory of Agricultural and Food Biomechanics, Institute of Biophysics and College of Science, Northwest A&F University, Yangling, Shaanxi 712100, ChinaLaboratory of Agricultural and Food Biomechanics, Institute of Biophysics and College of Science, Northwest A&F University, Yangling, Shaanxi 712100, ChinaLaboratory of Agricultural and Food Biomechanics, Institute of Biophysics and College of Science, Northwest A&F University, Yangling, Shaanxi 712100, ChinaLaboratory of Agricultural and Food Biomechanics, Institute of Biophysics and College of Science, Northwest A&F University, Yangling, Shaanxi 712100, ChinaLaboratory of Agricultural and Food Biomechanics, Institute of Biophysics and College of Science, Northwest A&F University, Yangling, Shaanxi 712100, ChinaThe well-organized collagen layers on mica surface have drawn extensive attention for its essential applications and studies on the process of self-assembly as a model system. In this work, collagen extracted from fish scales by acid-base method was used to explore the self-assembly characters, and atomic force microscopy was applied to observe the collagen assembled on mica surface mediated by acetate with four different cations, including K+, Na+, Mg2+, and Ca2+. It showed that cations might influence the interaction between collagen fibrils and mica surface at high ionic concentration. And a similar network structure was acquired with uniform pore size for four kinds of acetates; nearly ranged collagen fibrils in the same direction were collected in Mg2+ solutions, while flat films with some fibrils were achieved in K+ solutions. The Hofmeister series and Collins’ model were adapted to explain the effects of cations and acetate on the self-assembly of collagen. These results and analysis would be helpful for directing the pattern of collagen assembly on a solid surface with a potential application in food science and engineering.http://dx.doi.org/10.1155/2017/1692975 |
| spellingShingle | Zhiwei Wang Qi Xiao Xuan Song Yunfei Wan Jie Zhu Cation-Specific Effects on the Self-Assembly of Collagen Molecules Mediated by Acetate on Mica Surface Observed with Atomic Force Microscopy Journal of Food Quality |
| title | Cation-Specific Effects on the Self-Assembly of Collagen Molecules Mediated by Acetate on Mica Surface Observed with Atomic Force Microscopy |
| title_full | Cation-Specific Effects on the Self-Assembly of Collagen Molecules Mediated by Acetate on Mica Surface Observed with Atomic Force Microscopy |
| title_fullStr | Cation-Specific Effects on the Self-Assembly of Collagen Molecules Mediated by Acetate on Mica Surface Observed with Atomic Force Microscopy |
| title_full_unstemmed | Cation-Specific Effects on the Self-Assembly of Collagen Molecules Mediated by Acetate on Mica Surface Observed with Atomic Force Microscopy |
| title_short | Cation-Specific Effects on the Self-Assembly of Collagen Molecules Mediated by Acetate on Mica Surface Observed with Atomic Force Microscopy |
| title_sort | cation specific effects on the self assembly of collagen molecules mediated by acetate on mica surface observed with atomic force microscopy |
| url | http://dx.doi.org/10.1155/2017/1692975 |
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