| Title: | Chemical binding of chitosan and chitosan nanoparticles onto oxidized cellulose |
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| Authors: | ID Šauperl, Olivera (Author)
ID Kostić, Mirjana (Author)
ID Milanovic, Jovana (Author)
ID Fras Zemljič, Lidija (Author)
ID INDA, Association of the Nonwoven Fabrics Industry (Copyright holder) |
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| Files: |  Journal_of_Engineered_Fibers_and_Fabrics_2015_Sauperl_et_al._Chemical_Binding_of_Chitosan_and_Chitosan_Nanoparticles_onto_Oxidized_Cellu.pdf (144,32 KB)
MD5: 2FF0CC440BF29687EE426E134ABEDFF9
 http://www.jeffjournal.org/papers/Volume10/V10I2(8)%20O.%20Sauperl.pdf
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| Language: | English |
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| Work type: | Scientific work |
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| Typology: | 1.01 - Original Scientific Article |
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| Organization: | FS - Faculty of Mechanical Engineering
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| Abstract: | The aim of this study was to analyze binding of chitosan and chitosan nanoparticles onto cellulose via oxidized cellulose.
The ability of chitosan and chitosan nanoparticles to be adsorbed onto surfaces was determined by the use of the XPS spectroscopy which provided information about chemical composition of the fiber surface. On the other hand, the gravimetric method was also used by which the amount of chitosan and chitosan nanoparticles bounded onto surface was calculated based on the difference in masses before and after functionalization. The most important was to study the influence of aldehyde groups on the stability of chitosan binding onto cellulose. Thus, desorption of chitosan/chitosan nanoparticles
from the fiber surfaces was evaluated by the presence of total nitrogen (TN) in desorption bath as well as by polyelectrolyte titrations. Together with these two methods, desorption was evaluated
also by gravimetric method, where the extent of desorption was evaluated on the basis of the differences in the masses of fibers before and after desorption.
It is concluded that the chitosan and chitosan nanoparticles are more efficiently bounded onto
oxidized cellulose in comparison with the non-oxidized (reference) ones. Despite the binding of the positively-charged amino groups with the negative groups of cellulose and consequently smaller amount of available/residual protonated amino groups that are responsible for bioactivity, such functionalized fibers are still specifically antimicrobial. |
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| Keywords: | cellulose, oxidized cellulose, oxidation, chitosan, chitosan nanoparticles, FTIR, XPS, antimicrobial functionalization |
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| Publication status: | Published |
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| Publication version: | Version of Record |
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| Year of publishing: | 2015 |
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| Number of pages: | str. 70-77 |
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| Numbering: | Letn. 10, št. 2 |
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| PID: | 20.500.12556/DKUM-59276  |
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| ISSN: | 1558-9250 |
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| UDC: | 677:544 |
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| ISSN on article: | 1558-9250 |
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| COBISS.SI-ID: | 18728214 |
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| NUK URN: | URN:SI:UM:DK:OPOTMWRX |
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| Publication date in DKUM: | 02.08.2017 |
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| Views: | 1562 |
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| Downloads: | 532 |
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| Metadata: |    |
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| Categories: | Misc.
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