Mussel-inspired multifunctional supramolecular hydrogels with self-healing, shape memory and adhesive properties

2016 ◽  
Vol 7 (34) ◽  
pp. 5343-5346 ◽  
Author(s):  
Zhaowen Li ◽  
Wei Lu ◽  
To Ngai ◽  
Xiaoxia Le ◽  
Jing Zheng ◽  
...  
Keyword(s):  
Shape Memory ◽  
Phenylboronic Acid ◽  
Self Healing ◽  
Supramolecular Hydrogel ◽  
Adhesive Properties

A novel multifunctional supramolecular hydrogel with self-healing, shape memory and adhesive properties is successfully developed on the basis of dynamic phenylboronic acid (PBA)–catechol interactions.

Self-Healing, Expansion-Contraction, and Shape-Memory Properties of a Preorganized Supramolecular Hydrogel through Host-Guest Interactions

2015 ◽  
Vol 127 (31) ◽  
pp. 9112-9115 ◽  
Author(s):  
Kohei Miyamae ◽  
Masaki Nakahata ◽  
Yoshinori Takashima ◽  
Akira Harada
Keyword(s):  
Shape Memory ◽  
Self Healing ◽  
Supramolecular Hydrogel ◽  
Shape Memory Properties

New star-shape memory polyurethanes capable of thermally induced recovery and hydrogen bond-self-healing

2021 ◽  
Author(s):  
Zonghui Huang ◽  
Jianfeng Ban ◽  
Lulu Pan ◽  
Shuqing Cai ◽  
Junqiu Liao
Keyword(s):  
Hydrogen Bond ◽  
Shape Memory ◽  
Self Healing ◽  
Thermally Induced ◽  
Thermally Responsive

Star-shape memory polyurethanes that combine thermally responsive and self-healing properties.

Self-healing poly(siloxane-urethane) elastomers with remoldability, shape memory and biocompatibility

2016 ◽  
Vol 7 (47) ◽  
pp. 7278-7286 ◽  
Author(s):  
Jian Zhao ◽  
Rui Xu ◽  
Gaoxing Luo ◽  
Jun Wu ◽  
Hesheng Xia
Keyword(s):  
Mechanical Property ◽  
Shape Memory ◽  
Microphase Separation ◽  
Diels Alder ◽  
Good Mechanical Property ◽  
Self Healing ◽  
Healing Efficiency ◽  
Good Biocompatibility

The poly(siloxane-urethane) elastomers with microphase separation structure and Diels–Alder bonds show high healing efficiency, good mechanical property and good biocompatibility.

Catalyst-free self-healing fully bio-based vitrimers derived from tung oil: Strong mechanical properties, shape memory, and recyclability

2021 ◽  
Vol 171 ◽  
pp. 113978
Author(s):  
Ya-zhou Xu ◽  
Pan Fu ◽  
Song-lin Dai ◽  
Hai-bo Zhang ◽  
Liang-wu Bi ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Shape Memory ◽  
Self Healing ◽  
Tung Oil ◽  
Catalyst Free

scholarly journals Biohydrogel Based on Dynamic Covalent Bonds for Wound Healing Applications

2021 ◽  
Vol 11 (15) ◽  
pp. 6945
Author(s):  
Chukwuma O. Agubata ◽  
Cynthia C. Mbaoji ◽  
Ifeanyi T. Nzekwe ◽  
César Saldías ◽  
David Díaz Díaz
Keyword(s):  
Wound Healing ◽  
Interfacial Tension ◽  
Blood Clotting ◽  
Phenylboronic Acid ◽  
Moisture Loss ◽  
Self Healing ◽  
Covalent Bonds ◽  
Treatment Groups ◽  
Acid Soluble Collagen ◽  
Thixotropic Behavior

In this work, a biohydrogel based on alginate and dynamic covalent B-O bonds, and derived composites, has been evaluated for wound healing applications. In particular, a phenylboronic acid–alginate (PBA-Alg) complex was synthesized by coupling 3-aminophenylboronic acid onto alginate, and used to prepare varied concentrations of hydrogels and silicate-based nanocomposites in PBS. The resulting hydrogels were characterized in terms of interfacial tension, moisture uptake and loss, interaction with fresh acid-soluble collagen, self-healing ability, effects on blood clotting and wound healing. The interfacial tension between the hydrogels and biorelevant fluids was low and moisture loss of 55%–60% was evident without uptake from the environment. The components of the hydrogels and their mixtures with collagen were found to be compatible. These hydrogels showed efficient self-healing and thixotropic behavior, and the animals in the treatment groups displayed blood clotting times between 9.1 min and 10.7 min. In contrast, the composites showed much longer or shorter clotting times depending on the silicate content. A significant improvement in wound healing was observed in 3% w/v PBA-Alg formulations. Overall, the PBA-Alg hydrogels exhibit self-healing dynamic covalent interactions and may be useful in dressings for incision wounds.

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