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Preparation and Swelling Behaviors of High-Strength Hemicellulose-g-Polydopamine Composite Hydrogels
Hemicellulose-based composite hydrogels were successfully prepared by adding polydopamine (PDA) microspheres as reinforcing agents. The effects of PDA microsphere size, dosage, and nitrogen content in hydrogel on the mechanical and rheological properties was studied. The compressive strength of hydr...
Autores principales: | , , , , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
MDPI
2021
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7795248/ https://www.ncbi.nlm.nih.gov/pubmed/33401706 http://dx.doi.org/10.3390/ma14010186 |
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author | Ge, Jiayan Gu, Kaiqi Sun, Kewen Wang, Xinyue Yao, Shuangquan Mo, Xiaorong Long, Shuilian Lan, Tingting Qin, Chengrong |
author_facet | Ge, Jiayan Gu, Kaiqi Sun, Kewen Wang, Xinyue Yao, Shuangquan Mo, Xiaorong Long, Shuilian Lan, Tingting Qin, Chengrong |
author_sort | Ge, Jiayan |
collection | PubMed |
description | Hemicellulose-based composite hydrogels were successfully prepared by adding polydopamine (PDA) microspheres as reinforcing agents. The effects of PDA microsphere size, dosage, and nitrogen content in hydrogel on the mechanical and rheological properties was studied. The compressive strength of hydrogel was increased from 0.11 to 0.30 MPa. The storage modulus G’ was increased from 7.9 to 22.0 KPa. The gaps in the hemicellulose network are filled with PDA microspheres. There is also chemical cross-linking between them. These gaps increased the density of the hydrogel network structure. It also has good water retention and pH sensitivity. The maximum cumulative release rate of methylene blue was 62.82%. The results showed that the release behavior of hydrogel was pH-responsive, which was beneficial to realizing targeted and controlling drug release. |
format | Online Article Text |
id | pubmed-7795248 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2021 |
publisher | MDPI |
record_format | MEDLINE/PubMed |
spelling | pubmed-77952482021-01-10 Preparation and Swelling Behaviors of High-Strength Hemicellulose-g-Polydopamine Composite Hydrogels Ge, Jiayan Gu, Kaiqi Sun, Kewen Wang, Xinyue Yao, Shuangquan Mo, Xiaorong Long, Shuilian Lan, Tingting Qin, Chengrong Materials (Basel) Article Hemicellulose-based composite hydrogels were successfully prepared by adding polydopamine (PDA) microspheres as reinforcing agents. The effects of PDA microsphere size, dosage, and nitrogen content in hydrogel on the mechanical and rheological properties was studied. The compressive strength of hydrogel was increased from 0.11 to 0.30 MPa. The storage modulus G’ was increased from 7.9 to 22.0 KPa. The gaps in the hemicellulose network are filled with PDA microspheres. There is also chemical cross-linking between them. These gaps increased the density of the hydrogel network structure. It also has good water retention and pH sensitivity. The maximum cumulative release rate of methylene blue was 62.82%. The results showed that the release behavior of hydrogel was pH-responsive, which was beneficial to realizing targeted and controlling drug release. MDPI 2021-01-02 /pmc/articles/PMC7795248/ /pubmed/33401706 http://dx.doi.org/10.3390/ma14010186 Text en © 2021 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 Ge, Jiayan Gu, Kaiqi Sun, Kewen Wang, Xinyue Yao, Shuangquan Mo, Xiaorong Long, Shuilian Lan, Tingting Qin, Chengrong Preparation and Swelling Behaviors of High-Strength Hemicellulose-g-Polydopamine Composite Hydrogels |
title | Preparation and Swelling Behaviors of High-Strength Hemicellulose-g-Polydopamine Composite Hydrogels |
title_full | Preparation and Swelling Behaviors of High-Strength Hemicellulose-g-Polydopamine Composite Hydrogels |
title_fullStr | Preparation and Swelling Behaviors of High-Strength Hemicellulose-g-Polydopamine Composite Hydrogels |
title_full_unstemmed | Preparation and Swelling Behaviors of High-Strength Hemicellulose-g-Polydopamine Composite Hydrogels |
title_short | Preparation and Swelling Behaviors of High-Strength Hemicellulose-g-Polydopamine Composite Hydrogels |
title_sort | preparation and swelling behaviors of high-strength hemicellulose-g-polydopamine composite hydrogels |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7795248/ https://www.ncbi.nlm.nih.gov/pubmed/33401706 http://dx.doi.org/10.3390/ma14010186 |
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