The DOI matches its Crossref record; 29 of the 29 references it cites were found in a registry or an index.
Chitin Nanocrystals Prepared by TEMPO-Mediated Oxidation of α-Chitin
Abstract
Chitin nanocrystals dispersed in water were successfully prepared by 2,2,6,6-tetramethylpiperidine-1-oxyl radical (TEMPO) mediated oxidation of alpha-chitin in water at pH 10 under specific conditions, followed by ultrasonic treatment. When the amount of NaClO added as co-oxidant in the oxidation was 5.0 mmol/g of chitin, the weight percentage of the water-insoluble fraction in the TEMPO-oxidized chitin was 90%, and its carboxylate content reached 0.48 mmol/g. Since the TEMPO-oxidized chitin thus prepared had a crystallinity as high as that of the original alpha-chitin, the C6 carboxylate groups formed by TEMPO-mediated oxidation can be regarded as being present only on the chitin crystallite surfaces. No N-deacetylation occurred on the TEMPO-oxidized chitins. When the TEMPO-oxidized chitin was subjected to ultrasonic treatment in water, mostly individualized chitin nanocrystals were obtained, and the average nanocrystal length and width were 340 and 8 nm, respectively.
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Cited by
Chitin nanofibers: preparations, modifications, and applications
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Recent advances in chitin based materials constructed via physical methods
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Metadata
- Authors
- Fan, Y., Saito, T., & Isogai, A.
- Venue
- Biomacromolecules
- Publisher
- American Chemical Society (ACS)
- Published
- 2007-12-27
- Volume
- 9
- Issue
- 1
- Pages
- 192-198
- ISSN
- 1525-7797 (ISSN-L)
- 1526-4602
- OpenAlex
- W2024500783
- Cited by
- 403
- References
- 29
- FWCI
- 1.61
- Type
- journal article
- Language
- en
- Open access
- closed
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