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Fabrication of polyvinyl alcohol hydrogels with excellent shape memory and ultraviolet-shielding behavior via the introduction of tea polyphenols

Shape-memory hydrogels are expected to be used not only in an ordinary environment, but also in some special environments, such as under ultraviolet (UV) irradiation. Developing novel shape-memory polyvinyl alcohol (PVA)/tea polyphenol (TP) hydrogels with UV shielding performance is realistically im...

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Autores principales: Xiong, Xike, Sun, Jun, Hu, Di, Xiao, Chao, Wang, Jianjun, Zhuo, Qiqi, Qin, Chuanxiang, Dai, Lixing
Formato: Online Artículo Texto
Lenguaje:English
Publicado: The Royal Society of Chemistry 2020
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9056856/
https://www.ncbi.nlm.nih.gov/pubmed/35515656
http://dx.doi.org/10.1039/d0ra06053d
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author Xiong, Xike
Sun, Jun
Hu, Di
Xiao, Chao
Wang, Jianjun
Zhuo, Qiqi
Qin, Chuanxiang
Dai, Lixing
author_facet Xiong, Xike
Sun, Jun
Hu, Di
Xiao, Chao
Wang, Jianjun
Zhuo, Qiqi
Qin, Chuanxiang
Dai, Lixing
author_sort Xiong, Xike
collection PubMed
description Shape-memory hydrogels are expected to be used not only in an ordinary environment, but also in some special environments, such as under ultraviolet (UV) irradiation. Developing novel shape-memory polyvinyl alcohol (PVA)/tea polyphenol (TP) hydrogels with UV shielding performance is realistically important in application fields. Herein, we designed functional PVA/TP hydrogels with excellent UV-shielding ability and improved the shape memory on hot water stimuli. This study shows that the abundant hydrogen bonds between PVA and TP are the source of shape memory. The PVA hydrogels with 8 wt% TP loading could approximately recover their original shape after deformation when immersed in water at 50 °C for 30 s. Meanwhile, the hydrogels also had excellent UV shielding capacity. After ageing under UV for 16 days, the observed shape of the hydrogel with 8 wt% TP loading retained 74.7% of the original, and the hydrogel could effectively protect the skin of mice from damage under 10 mW cm(−2) UV irradiation. With the understanding of the UV-shielding behavior of hydrogels, this study has been able to generate biomedical materials for human skin protection, specifically skin covering the joint areas, where shape memory of the applied materials is essential.
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spelling pubmed-90568562022-05-04 Fabrication of polyvinyl alcohol hydrogels with excellent shape memory and ultraviolet-shielding behavior via the introduction of tea polyphenols Xiong, Xike Sun, Jun Hu, Di Xiao, Chao Wang, Jianjun Zhuo, Qiqi Qin, Chuanxiang Dai, Lixing RSC Adv Chemistry Shape-memory hydrogels are expected to be used not only in an ordinary environment, but also in some special environments, such as under ultraviolet (UV) irradiation. Developing novel shape-memory polyvinyl alcohol (PVA)/tea polyphenol (TP) hydrogels with UV shielding performance is realistically important in application fields. Herein, we designed functional PVA/TP hydrogels with excellent UV-shielding ability and improved the shape memory on hot water stimuli. This study shows that the abundant hydrogen bonds between PVA and TP are the source of shape memory. The PVA hydrogels with 8 wt% TP loading could approximately recover their original shape after deformation when immersed in water at 50 °C for 30 s. Meanwhile, the hydrogels also had excellent UV shielding capacity. After ageing under UV for 16 days, the observed shape of the hydrogel with 8 wt% TP loading retained 74.7% of the original, and the hydrogel could effectively protect the skin of mice from damage under 10 mW cm(−2) UV irradiation. With the understanding of the UV-shielding behavior of hydrogels, this study has been able to generate biomedical materials for human skin protection, specifically skin covering the joint areas, where shape memory of the applied materials is essential. The Royal Society of Chemistry 2020-09-23 /pmc/articles/PMC9056856/ /pubmed/35515656 http://dx.doi.org/10.1039/d0ra06053d Text en This journal is © The Royal Society of Chemistry https://creativecommons.org/licenses/by-nc/3.0/
spellingShingle Chemistry
Xiong, Xike
Sun, Jun
Hu, Di
Xiao, Chao
Wang, Jianjun
Zhuo, Qiqi
Qin, Chuanxiang
Dai, Lixing
Fabrication of polyvinyl alcohol hydrogels with excellent shape memory and ultraviolet-shielding behavior via the introduction of tea polyphenols
title Fabrication of polyvinyl alcohol hydrogels with excellent shape memory and ultraviolet-shielding behavior via the introduction of tea polyphenols
title_full Fabrication of polyvinyl alcohol hydrogels with excellent shape memory and ultraviolet-shielding behavior via the introduction of tea polyphenols
title_fullStr Fabrication of polyvinyl alcohol hydrogels with excellent shape memory and ultraviolet-shielding behavior via the introduction of tea polyphenols
title_full_unstemmed Fabrication of polyvinyl alcohol hydrogels with excellent shape memory and ultraviolet-shielding behavior via the introduction of tea polyphenols
title_short Fabrication of polyvinyl alcohol hydrogels with excellent shape memory and ultraviolet-shielding behavior via the introduction of tea polyphenols
title_sort fabrication of polyvinyl alcohol hydrogels with excellent shape memory and ultraviolet-shielding behavior via the introduction of tea polyphenols
topic Chemistry
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9056856/
https://www.ncbi.nlm.nih.gov/pubmed/35515656
http://dx.doi.org/10.1039/d0ra06053d
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