Multi-responsive, injectable, and self-healing hydrogels based on benzoxaborole–tannic acid complexation

2021 ◽  
Vol 12 (39) ◽  
pp. 5623-5630
Author(s):  
Yi-Yang Peng ◽  
Qiuli Cheng ◽  
Wenda Wang ◽  
Meng Wu ◽  
Diana Diaz-Dussan ◽  
...  
Keyword(s):  

A bio-inspired, multi-responsive, injectable, and self-healing hydrogel was developed via the interaction of tannic acid (TA) and benzoxaborole-based linear copolymers.

Polymers ◽  
2020 ◽  
Vol 12 (1) ◽  
pp. 239 ◽  
Author(s):  
Jie Wen ◽  
Xiaopeng Zhang ◽  
Mingwang Pan ◽  
Jinfeng Yuan ◽  
Zhanyu Jia ◽  
...  

Commonly synthetic polyethylene glycol polyurethane (PEG–PU) hydrogels possess poor mechanical properties, such as robustness and toughness, which limits their load-bearing application. Hence, it remains a challenge to prepare PEG–PU hydrogels with excellent mechanical properties. Herein, a novel double-crosslinked (DC) PEG–PU hydrogel was fabricated by combining chemical with physical crosslinking, where trimethylolpropane (TMP) was used as the first chemical crosslinker and polyphenol compound tannic acid (TA) was introduced into the single crosslinked PU network by simple immersion process. The second physical crosslinking was formed by numerous hydrogen bonds between urethane groups of PU and phenol hydroxyl groups in TA, which can endow PEG–PU hydrogel with good mechanical properties, self-recovery and a self-healing capability. The research results indicated that as little as a 30 mg·mL−1 TA solution enhanced the tensile strength and fracture energy of PEG–PU hydrogel from 0.27 to 2.2 MPa, 2.0 to 9.6 KJ·m−2, respectively. Moreover, the DC PEG–PU hydrogel possessed good adhesiveness to diverse substrates because of TA abundant catechol groups. This work shows a simple and versatile method to prepare a multifunctional DC single network PEG–PU hydrogel with excellent mechanical properties, and is expected to facilitate developments in the biomedical field.


2022 ◽  
Vol 106 ◽  
pp. 107444
Author(s):  
Nataša Z. Tomić ◽  
Milad Saeedifar ◽  
Mohamed Nasr Saleh ◽  
Aleksandar Marinković ◽  
Dimitrios Zarouchas ◽  
...  

2020 ◽  
Vol 31 (7) ◽  
pp. 1648-1660 ◽  
Author(s):  
Tingting Li ◽  
Xiangming Hu ◽  
Qingsong Zhang ◽  
Yanyun Zhao ◽  
Peng Wang ◽  
...  

2020 ◽  
Vol 8 (9) ◽  
pp. 2694-2701 ◽  
Author(s):  
Xijie Gao ◽  
Qiyuan Dai ◽  
Longtao Yao ◽  
Hua Dong ◽  
Qingtao Li ◽  
...  

A medical adhesive called TASK based on polyphenol-gel systems was developed and showed wet-adhesive, stretchable, self-healing and restorable properties.


Author(s):  
Yuntong Liu ◽  
Dangsheng Xiong

Polyetheretherketone (PEEK) is widely considered as a promising material for joint implants but it still has limitations involving high friction and wear. Mimicking the cartilage-subchondral bone structure in natural joints,...


Author(s):  
Nataša Z. Tomić ◽  
Mohamed Nasr Saleh ◽  
Milad Saeedifar ◽  
Aleksandar Marinković ◽  
Sofia Teixeira de Freitas

2019 ◽  
Vol 60 (1) ◽  
pp. 140-150 ◽  
Author(s):  
Junali Handique ◽  
Joly Gogoi ◽  
Jayashree Nath ◽  
Swapan Kumar Dolui

2021 ◽  
pp. 2100055
Author(s):  
Peihong Li ◽  
Yanlong Sui ◽  
Xueyan Dai ◽  
Qiangsheng Fang ◽  
Haofei Sima ◽  
...  

2019 ◽  
Vol 224 ◽  
pp. 115147 ◽  
Author(s):  
Wenjiao Ge ◽  
Shan Cao ◽  
Feng Shen ◽  
Yuyuan Wang ◽  
Junli Ren ◽  
...  

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