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231225s2018 xx |||||o 00| ||eng c |
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7 |
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|a 10.1021/acs.langmuir.8b00923
|2 doi
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2 |
|a pubmed24n0948.xml
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|a eng
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| 100 |
1 |
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|a Shi, Jiabo
|e verfasserin
|4 aut
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| 245 |
1 |
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|a Diffusion and Binding of Laponite Clay Nanoparticles into Collagen Fibers for the Formation of Leather Matrix
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|c 2018
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|a Text
|b txt
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|a ƒaComputermedien
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|a Date Completed 17.09.2018
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|a Date Revised 17.09.2018
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|a published: Print-Electronic
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|a Citation Status PubMed-not-MEDLINE
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|a Understanding accessibility and interactions of clay nanoparticles with collagen fibers is an important fundamental issue for the conversion of collagen to leather matrix. In this study, we have investigated the diffusion and binding of Laponite into the collagen fiber network. Our results indicate that the diffusion behaviors of Laponite into the collagen exhibit the Langmuir adsorption, verifying its affinity for collagen. The introduction of Laponite leads to a shift in the isoelectric point of collagen from ∼6.8 to ∼4.5, indicating the ionic bonding between the positively charged amino groups of the collagen and negatively charged Laponite under the tanning conditions. Fluorescence microscopy, atomic force microscopy, field-emission scanning electron microscopy, energy-dispersive X-ray spectroscopy, and wide-angle X-ray diffraction analyses reveal that Laponite nanoparticles can penetrate into collagen microstructure and evenly distributed onto collagen fibrils, not altering native D-periodic banding patterns of collagen fibrils. Attenuated total reflectance-Fourier transform infrared and Raman spectroscopy detections further demonstrate the presence of noncovalent interactions, namely, ionic and hydrogen bonding, between Laponite and collagen. These findings provide a theoretical basis for the use of Laponite as an emerging tanning agent in leather manufacture
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|a Journal Article
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|a Research Support, Non-U.S. Gov't
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1 |
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|a Wang, Chunhua
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Ngai, To
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Lin, Wei
|e verfasserin
|4 aut
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| 773 |
0 |
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|i Enthalten in
|t Langmuir : the ACS journal of surfaces and colloids
|d 1992
|g 34(2018), 25 vom: 26. Juni, Seite 7379-7385
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|x 1520-5827
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|g volume:34
|g year:2018
|g number:25
|g day:26
|g month:06
|g pages:7379-7385
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|u http://dx.doi.org/10.1021/acs.langmuir.8b00923
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