Title |
Cross-linking cellulose nanofibrils for potential elastic cryo-structured gels
|
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Published in |
Discover Nano, December 2011
|
DOI | 10.1186/1556-276x-6-626 |
Pubmed ID | |
Authors |
Kristin Syverud, Harald Kirsebom, Solmaz Hajizadeh, Gary Chinga-Carrasco |
Abstract |
Cellulose nanofibrils were produced from P. radiata kraft pulp fibers. The nanofibrillation was facilitated by applying 2,2,6,6-tetramethylpiperidinyl-1-oxyl-mediated oxidation as pretreatment. The oxidized nanofibrils were cross-linked with polyethyleneimine and poly N-isopropylacrylamide-co-allylamine-co-methylenebisacrylamide particles and were frozen to form cryo-structured gels. Samples of the gels were critical-point dried, and the corresponding structures were assessed with scanning electron microscopy. It appears that the aldehyde groups in the oxidized nanofibrils are suitable reaction sites for cross-linking. The cryo-structured materials were spongy, elastic, and thus capable of regaining their shape after a given pressure was released, indicating a successful cross-linking. These novel types of gels are considered potential candidates in biomedical and biotechnological applications. |
X Demographics
Geographical breakdown
Country | Count | As % |
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Norway | 1 | 100% |
Demographic breakdown
Type | Count | As % |
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Members of the public | 1 | 100% |
Mendeley readers
Geographical breakdown
Country | Count | As % |
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Japan | 1 | 1% |
Unknown | 87 | 99% |
Demographic breakdown
Readers by professional status | Count | As % |
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Student > Ph. D. Student | 23 | 26% |
Researcher | 15 | 17% |
Student > Master | 15 | 17% |
Student > Doctoral Student | 7 | 8% |
Student > Bachelor | 4 | 5% |
Other | 12 | 14% |
Unknown | 12 | 14% |
Readers by discipline | Count | As % |
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Chemistry | 22 | 25% |
Engineering | 14 | 16% |
Agricultural and Biological Sciences | 12 | 14% |
Materials Science | 11 | 13% |
Chemical Engineering | 4 | 5% |
Other | 7 | 8% |
Unknown | 18 | 20% |