Carbon dots and ruthenium doped oxygen sensitive nanofibrous membranes for monitoring the respiration of agricultural products

Yulong Xu; Di Yang; Shaosen Huo; Junkai Ren; Ningxiao Gao; Zhiyuan Chen; Yong Liu; Zheng Xie; Shuyun Zhou; Xiaozhong Qu

Polymer Testing (Jan 2021)

Carbon dots and ruthenium doped oxygen sensitive nanofibrous membranes for monitoring the respiration of agricultural products

Yulong Xu,
Di Yang,
Shaosen Huo,
Junkai Ren,
Ningxiao Gao,
Zhiyuan Chen,
Yong Liu,
Zheng Xie,
Shuyun Zhou,
Xiaozhong Qu

Affiliations

Yulong Xu: Beijing Key Laboratory of Advanced Functional Composites, College of Materials Science and Engineering, Beijing University of Chemical Technology, Beijing, 100029, China
Di Yang: Center of Materials Science and Optoelectronics Engineering, College of Materials Science and Opto-Electronic Technology, University of Chinese Academy of Sciences, Beijing, 100049, China
Shaosen Huo: Beijing Key Laboratory of Advanced Functional Composites, College of Materials Science and Engineering, Beijing University of Chemical Technology, Beijing, 100029, China
Junkai Ren: Key Laboratory of Photochemical Conversion and Optoelectronic Materials, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing 100190, China
Ningxiao Gao: College of Mechanical and Electric Engineering, Beijing University of Chemical Technology, Beijing, 100029, China
Zhiyuan Chen: Beijing Key Laboratory of Advanced Functional Composites, College of Materials Science and Engineering, Beijing University of Chemical Technology, Beijing, 100029, China
Yong Liu: Beijing Key Laboratory of Advanced Functional Composites, College of Materials Science and Engineering, Beijing University of Chemical Technology, Beijing, 100029, China; Corresponding author.
Zheng Xie: Key Laboratory of Photochemical Conversion and Optoelectronic Materials, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing 100190, China; Corresponding author.
Shuyun Zhou: Key Laboratory of Photochemical Conversion and Optoelectronic Materials, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing 100190, China
Xiaozhong Qu: Center of Materials Science and Optoelectronics Engineering, College of Materials Science and Opto-Electronic Technology, University of Chinese Academy of Sciences, Beijing, 100049, China; Corresponding author.

Journal volume & issue: Vol. 93
p. 106957

Abstract

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During the storage of agricultural products, the oxygen concentration in the packages represents the level of food respiration and hence indicates its freshness. Herein, self-referenced photoluminescent oxygen sensitive fibrous membranes were prepared, with the inclusion of an oxygen-sensitive probe, i.e. tris (4,7-diphenyl-1,10-phenanthroline) ruthenium (II) dichloride (RuDPP), with an oxygen-insensitive luminophore, i.e. silane-functionalized carbon dots (SiCDs). Silicone was selected as the matrix, obtained via sol-gel process, and was electrospun to get nanofibers containing mesoporous microstructure and with high oxygen permeability. The as-prepared RuDPP@SiCDs/SiO2 fibrous membranes possessed hydrophobicity and exhibited ideal oxygen sensitivity, which realized a remote evaluation of the freshness of packaged fruits, through ratiometric photoluminescence imaging on the concentration change of environmental oxygen. The results indicate that such kind of oxygen-sensitive fiber membranes are capable as an optical oxygen sensor for agricultural applications.

Published in Polymer Testing

ISSN: 0142-9418 (Print); 1873-2348 (Online)
Publisher: Elsevier
Country of publisher: United Kingdom
LCC subjects: Technology: Chemical technology: Polymers and polymer manufacture
Website: https://www.journals.elsevier.com/polymer-testing

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