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Modification of Polyacrylonitrile Fibers by Coupling to Thiosemicarbazones

This work reports the modification of Polyacrylonitrile (PAN) fibers by coupling to thiosemicarbazones to achieve the biological activity for the applications in the food product packaging. After modification, seven thiosemicarbazone compounds were synthesized. The as-synthesized thiosemicarbazone c...

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Autores principales: Yao, Yao, Liang, Yonghong, Navik, Rahul, Dong, Xiongwei, Cai, Yingjie, Zhang, Ping
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2019
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6926618/
https://www.ncbi.nlm.nih.gov/pubmed/31801281
http://dx.doi.org/10.3390/ma12233980
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author Yao, Yao
Liang, Yonghong
Navik, Rahul
Dong, Xiongwei
Cai, Yingjie
Zhang, Ping
author_facet Yao, Yao
Liang, Yonghong
Navik, Rahul
Dong, Xiongwei
Cai, Yingjie
Zhang, Ping
author_sort Yao, Yao
collection PubMed
description This work reports the modification of Polyacrylonitrile (PAN) fibers by coupling to thiosemicarbazones to achieve the biological activity for the applications in the food product packaging. After modification, seven thiosemicarbazone compounds were synthesized. The as-synthesized thiosemicarbazone compounds were bonded to PAN fibers via covalent coupling, which was confirmed using Fourier transform infrared spectroscopy (FTIR), X-ray photoelectron spectroscopy (XPS) and scanning electron microscopy. The mean graft efficiency of the compounds was about 1.92%, and the antibacterial efficiency was 88.6% and 45.1% against Staphylococcus aureus (S-aureus) bacteria. All the seven thiosemicarbazone compounds exerted excellent tyrosinase activity, low cytotoxicity, excellent metal ion chelation ability, and anti-bacterial behavior against both gram-positive and negative bacteria. The mechanical properties of the fibers have been maintained without significant damage after the chemical modification. The break strength test and elongation at the break test were done to measure the fracture strength of the modified fibers. Overall, the promising properties of the modified PAN fibers show potential applications in food packaging materials for fruits and vegetables, which require long-term anti-browning effects during their transportation and storage.
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spelling pubmed-69266182019-12-24 Modification of Polyacrylonitrile Fibers by Coupling to Thiosemicarbazones Yao, Yao Liang, Yonghong Navik, Rahul Dong, Xiongwei Cai, Yingjie Zhang, Ping Materials (Basel) Article This work reports the modification of Polyacrylonitrile (PAN) fibers by coupling to thiosemicarbazones to achieve the biological activity for the applications in the food product packaging. After modification, seven thiosemicarbazone compounds were synthesized. The as-synthesized thiosemicarbazone compounds were bonded to PAN fibers via covalent coupling, which was confirmed using Fourier transform infrared spectroscopy (FTIR), X-ray photoelectron spectroscopy (XPS) and scanning electron microscopy. The mean graft efficiency of the compounds was about 1.92%, and the antibacterial efficiency was 88.6% and 45.1% against Staphylococcus aureus (S-aureus) bacteria. All the seven thiosemicarbazone compounds exerted excellent tyrosinase activity, low cytotoxicity, excellent metal ion chelation ability, and anti-bacterial behavior against both gram-positive and negative bacteria. The mechanical properties of the fibers have been maintained without significant damage after the chemical modification. The break strength test and elongation at the break test were done to measure the fracture strength of the modified fibers. Overall, the promising properties of the modified PAN fibers show potential applications in food packaging materials for fruits and vegetables, which require long-term anti-browning effects during their transportation and storage. MDPI 2019-11-30 /pmc/articles/PMC6926618/ /pubmed/31801281 http://dx.doi.org/10.3390/ma12233980 Text en © 2019 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Yao, Yao
Liang, Yonghong
Navik, Rahul
Dong, Xiongwei
Cai, Yingjie
Zhang, Ping
Modification of Polyacrylonitrile Fibers by Coupling to Thiosemicarbazones
title Modification of Polyacrylonitrile Fibers by Coupling to Thiosemicarbazones
title_full Modification of Polyacrylonitrile Fibers by Coupling to Thiosemicarbazones
title_fullStr Modification of Polyacrylonitrile Fibers by Coupling to Thiosemicarbazones
title_full_unstemmed Modification of Polyacrylonitrile Fibers by Coupling to Thiosemicarbazones
title_short Modification of Polyacrylonitrile Fibers by Coupling to Thiosemicarbazones
title_sort modification of polyacrylonitrile fibers by coupling to thiosemicarbazones
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6926618/
https://www.ncbi.nlm.nih.gov/pubmed/31801281
http://dx.doi.org/10.3390/ma12233980
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