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New insights into the autofluorescence properties of cellulose/nanocellulose

Scientific reports, 2020-12, Vol.10 (1), p.21387-21387, Article 21387 [Peer Reviewed Journal]

The Author(s) 2020. This work is published under http://creativecommons.org/licenses/by/4.0/ (the “License”). Notwithstanding the ProQuest Terms and Conditions, you may use this content in accordance with the terms of the License. ;The Author(s) 2020 ;ISSN: 2045-2322 ;EISSN: 2045-2322 ;DOI: 10.1038/s41598-020-78480-2 ;PMID: 33288829

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  • Title:
    New insights into the autofluorescence properties of cellulose/nanocellulose
  • Author: Ding, Qijun ; Han, Wenjia ; Li, Xia ; Jiang, Yifei ; Zhao, Chuanshan
  • Subjects: Cellulose ; Chemical perception ; Chemoreception ; Fluorescence spectroscopy ; Lignin ; Oxidation ; Polarity ; Pulp ; Spectrum analysis
  • Is Part Of: Scientific reports, 2020-12, Vol.10 (1), p.21387-21387, Article 21387
  • Description: This work explored the fluorescence properties of nano/cellulose isolated from bleached softwood kraft pulp by TEMPO oxidation. Fluorescence spectra showed that all samples exhibited a typical emission peak at 574 nm due to the probabilistic formation of unsaturated bonds by glycosidic bonds independent of lignin. Increasing the excitation wavelengths (510-530 nm) caused red shift of fluorescence emission peaks (570-585 nm) with unchanged fluorescence intensity. Conversely, changing acid/alkaline conditions led to an increase of fluorescence intensity with no shifting of fluorescence emission peak. This can be attributed to an increase in the polarity of the solution environment but does not cause interaction of functional groups within the system identified by generalized two-dimensional correlation fluorescence spectroscopy. This study provides new insight in applying nano/cellulose with special luminous characteristics in biomedicine area such as multi-color biological imaging and chemical sensing.
  • Publisher: England: Nature Publishing Group
  • Language: English
  • Identifier: ISSN: 2045-2322
    EISSN: 2045-2322
    DOI: 10.1038/s41598-020-78480-2
    PMID: 33288829
  • Source: PubMed Central
    ProQuest Central
    DOAJ Directory of Open Access Journals
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