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231225s2018 xx |||||o 00| ||eng c |
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|a 10.1021/acs.langmuir.7b04104
|2 doi
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|a pubmed24n0932.xml
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|a (NLM)29307187
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|a DE-627
|b ger
|c DE-627
|e rakwb
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| 041 |
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|a eng
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| 100 |
1 |
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|a Taketa, Thiago B
|e verfasserin
|4 aut
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| 245 |
1 |
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|a Investigation of the Internal Chemical Composition of Chitosan-Based LbL Films by Depth-Profiling X-ray Photoelectron Spectroscopy (XPS) Analysis
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| 264 |
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|c 2018
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| 336 |
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|a Text
|b txt
|2 rdacontent
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|a ƒaComputermedien
|b c
|2 rdamedia
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|a ƒa Online-Ressource
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|2 rdacarrier
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|a Date Completed 23.04.2018
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|a Date Revised 23.04.2018
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|a published: Print-Electronic
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|a Citation Status PubMed-not-MEDLINE
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|a Chitosan-based thin films were assembled using the layer-by-layer technique, and the axial composition was accessed using X-ray photoelectron spectroscopy with depth profiling. Chitosan (CHI) samples possessing different degrees of acetylation ([Formula: see text]) and molecular weight ([Formula: see text]) produced via the ultrasound-assisted deacetylation reaction were used in this study along with two different polyanions, namely, sodium polystyrenesulfonate (PSS) and carboxymethylcellulose (CMC). When chitosan, a positively charged polymer in aqueous acid medium, was combined with a strong polyanion (PSS), the total positive charge of chitosan, directly related to its [Formula: see text], was the key factor affecting the film formation. However, for CMC/CHI films, the pH of the medium and [Formula: see text] of chitosan strongly affected the film structure and composition. Consequently, the structure and the axial composition of chitosan-based films can be finely adjusted by choosing the polyanion and defining the chitosan to be used according to its DA and [Formula: see text] for the desired application, as demonstrated by the antibacterial tests
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4 |
|a Journal Article
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| 650 |
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4 |
|a Research Support, Non-U.S. Gov't
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| 650 |
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4 |
|a Research Support, U.S. Gov't, Non-P.H.S.
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| 700 |
1 |
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|a Dos Santos, Danilo M
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Fiamingo, Anderson
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Vaz, Juliana M
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Beppu, Marisa M
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Campana-Filho, Sérgio P
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Cohen, Robert E
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Rubner, Michael F
|e verfasserin
|4 aut
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| 773 |
0 |
8 |
|i Enthalten in
|t Langmuir : the ACS journal of surfaces and colloids
|d 1992
|g 34(2018), 4 vom: 30. Jan., Seite 1429-1440
|w (DE-627)NLM098181009
|x 1520-5827
|7 nnns
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| 773 |
1 |
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|g volume:34
|g year:2018
|g number:4
|g day:30
|g month:01
|g pages:1429-1440
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|u http://dx.doi.org/10.1021/acs.langmuir.7b04104
|3 Volltext
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