New insights into the autofluorescence properties of cellulose/nanocellulose

Abstract 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 bond...

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Autores principales:	Qijun Ding, Wenjia Han, Xia Li, Yifei Jiang, Chuanshan Zhao
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2020
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/91f3d7461e2a4769a3f9cbe9d2d01c33
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spelling	oai:doaj.org-article:91f3d7461e2a4769a3f9cbe9d2d01c332021-12-02T11:41:56ZNew insights into the autofluorescence properties of cellulose/nanocellulose10.1038/s41598-020-78480-22045-2322https://doaj.org/article/91f3d7461e2a4769a3f9cbe9d2d01c332020-12-01T00:00:00Zhttps://doi.org/10.1038/s41598-020-78480-2https://doaj.org/toc/2045-2322Abstract 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.Qijun DingWenjia HanXia LiYifei JiangChuanshan ZhaoNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 10, Iss 1, Pp 1-8 (2020)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Qijun Ding Wenjia Han Xia Li Yifei Jiang Chuanshan Zhao New insights into the autofluorescence properties of cellulose/nanocellulose
description	Abstract 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.
format	article
author	Qijun Ding Wenjia Han Xia Li Yifei Jiang Chuanshan Zhao
author_facet	Qijun Ding Wenjia Han Xia Li Yifei Jiang Chuanshan Zhao
author_sort	Qijun Ding
title	New insights into the autofluorescence properties of cellulose/nanocellulose
title_short	New insights into the autofluorescence properties of cellulose/nanocellulose
title_full	New insights into the autofluorescence properties of cellulose/nanocellulose
title_fullStr	New insights into the autofluorescence properties of cellulose/nanocellulose
title_full_unstemmed	New insights into the autofluorescence properties of cellulose/nanocellulose
title_sort	new insights into the autofluorescence properties of cellulose/nanocellulose
publisher	Nature Portfolio
publishDate	2020
url	https://doaj.org/article/91f3d7461e2a4769a3f9cbe9d2d01c33
work_keys_str_mv	AT qijunding newinsightsintotheautofluorescencepropertiesofcellulosenanocellulose AT wenjiahan newinsightsintotheautofluorescencepropertiesofcellulosenanocellulose AT xiali newinsightsintotheautofluorescencepropertiesofcellulosenanocellulose AT yifeijiang newinsightsintotheautofluorescencepropertiesofcellulosenanocellulose AT chuanshanzhao newinsightsintotheautofluorescencepropertiesofcellulosenanocellulose
_version_	1718395411918487552

New insights into the autofluorescence properties of cellulose/nanocellulose

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