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231225s2019 xx |||||o 00| ||eng c |
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|a 10.1021/acs.langmuir.9b01844
|2 doi
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|a pubmed24n1000.xml
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|a (NLM)31405280
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|a DE-627
|b ger
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|e rakwb
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|a eng
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| 100 |
1 |
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|a Valois, Eric
|e verfasserin
|4 aut
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| 245 |
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|a The Thiol-Rich Interlayer in the Shell/Core Architecture of Mussel Byssal Threads
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|c 2019
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|a Text
|b txt
|2 rdacontent
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|a ƒaComputermedien
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|2 rdamedia
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|a ƒa Online-Ressource
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|2 rdacarrier
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|a Date Completed 30.06.2020
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|a Date Revised 30.06.2020
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|a published: Print-Electronic
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|a Citation Status PubMed-not-MEDLINE
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|a The mussel byssus thread is an extremely tough core-shelled fiber that dissipates substantial amounts of energy during tensile loading. The mechanical performance of the shell is critically reliant on 3,4-dihydroxyphenylalanine's (Dopa) ability to form reversible iron-catecholate complexes at pH 8. However, the formation of these coordinate cross-links is undercut by Dopa's oxidation to Dopa-quinone, a spontaneous process at seawater conditions. The large mechanical mismatch between the cuticle and the core lends itself to further complications. Despite these challenges, the mussel byssus thread performs its tethering function over long periods of time. Here, we address these two major questions: (1) how does the mussel slow/prevent oxidation in the cuticle, and (2) how is the mechanical mismatch at the core/shell interface mitigated? By combining a number of microscopy and spectroscopy techniques we have discerned a previously undescribed layer. Our results indicate this interlayer is thiol rich and thus will be called the thiol-rich interlayer (TRL). We propose the TRL serves as a long-lasting redox reservoir as well as a mechanical barrier
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|a Journal Article
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|a Research Support, Non-U.S. Gov't
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|a Research Support, U.S. Gov't, Non-P.H.S.
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| 700 |
1 |
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|a Hoffman, Carter
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Demartini, Daniel G
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Waite, J Herbert
|e verfasserin
|4 aut
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| 773 |
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|i Enthalten in
|t Langmuir : the ACS journal of surfaces and colloids
|d 1992
|g 35(2019), 48 vom: 03. Dez., Seite 15985-15991
|w (DE-627)NLM098181009
|x 1520-5827
|7 nnns
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| 773 |
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|g volume:35
|g year:2019
|g number:48
|g day:03
|g month:12
|g pages:15985-15991
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| 856 |
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|u http://dx.doi.org/10.1021/acs.langmuir.9b01844
|3 Volltext
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