scholarly journals Mussel Byssus Cuticle: Metal Coordination‐Mediated Functional Grading and Self‐Healing in Mussel Byssus Cuticle (Adv. Sci. 23/2019)

2019 ◽  
Vol 6 (23) ◽  
pp. 1970138
Author(s):  
Quan Xu ◽  
Meng Xu ◽  
Chun‐Yu Lin ◽  
Qiang Zhao ◽  
Rui Zhang ◽  
...  
Keyword(s):  
Metal Coordination ◽  
Self Healing ◽  
Mussel Byssus

scholarly journals Metal Coordination‐Mediated Functional Grading and Self‐Healing in Mussel Byssus Cuticle

2019 ◽  
Vol 6 (23) ◽  
pp. 1902043 ◽  
Author(s):  
Quan Xu ◽  
Meng Xu ◽  
Chun‐Yu Lin ◽  
Qiang Zhao ◽  
Rui Zhang ◽  
...  
Keyword(s):  
Metal Coordination ◽  
Self Healing ◽  
Mussel Byssus

scholarly journals Healing through Histidine: Bioinspired Pathways to Self-Healing Polymers via Imidazole–Metal Coordination

Biomimetics ◽  
2019 ◽  
Vol 4 (1) ◽  
pp. 20 ◽  
Author(s):  
Stefan Zechel ◽  
Martin Hager ◽  
Tobias Priemel ◽  
Matthew Harrington
Keyword(s):  
Polymeric Materials ◽  
Synthetic Polymers ◽  
Metal Coordination ◽  
Self Healing ◽  
Amino Acid Residues ◽  
Plastic Yield ◽  
Current State ◽  
Cross Links ◽  
Mussel Byssus

Biology offers a valuable inspiration toward the development of self-healing engineering composites and polymers. In particular, chemical level design principles extracted from proteinaceous biopolymers, especially the mussel byssus, provide inspiration for design of autonomous and intrinsic healing in synthetic polymers. The mussel byssus is an acellular tissue comprised of extremely tough protein-based fibers, produced by mussels to secure attachment on rocky surfaces. Threads exhibit self-healing response following an apparent plastic yield event, recovering initial material properties in a time-dependent fashion. Recent biochemical analysis of the structure–function relationships defining this response reveal a key role of sacrificial cross-links based on metal coordination bonds between Zn2+ ions and histidine amino acid residues. Inspired by this example, many research groups have developed self-healing polymeric materials based on histidine (imidazole)–metal chemistry. In this review, we provide a detailed overview of the current understanding of the self-healing mechanism in byssal threads, and an overview of the current state of the art in histidine- and imidazole-based synthetic polymers.

A pH-induced self-healable shape memory hydrogel with metal-coordination cross-links

2019 ◽  
Vol 10 (15) ◽  
pp. 1920-1929 ◽  
Author(s):  
Liuxuan Lu ◽  
Tian Tian ◽  
Shanshan Wu ◽  
Tao Xiang ◽  
Shaobing Zhou
Keyword(s):  
Shape Memory ◽  
Metal Coordination ◽  
Self Healing ◽  
Ph Values ◽  
Cross Links

A 4-armed PEG–DA hydrogel was fabricated, which showed regulated shape memory and self-healing properties at different pH values.

A multifunctional metal-biopolymer coordinated double network hydrogel combined with multi-stimulus responsiveness, self-healing, shape memory and antibacterial properties

2020 ◽  
Vol 8 (11) ◽  
pp. 3193-3201 ◽  
Author(s):  
Kun Yan ◽  
Feiyang Xu ◽  
Chunyu Wang ◽  
Yingying Li ◽  
Yuanli Chen ◽  
...  
Keyword(s):  
Coordination Chemistry ◽  
Shape Memory ◽  
Antibacterial Properties ◽  
Metal Coordination ◽  
Self Healing ◽  
Double Network ◽  
Assembly Technology

A universal, straightforward macroscale assembly technology has been presented for fabrication of polysaccharide-based multifunctional DN gels based on metal coordination chemistry.

Exploring mussel byssus fabrication with peptide-polymer hybrids: Role of pH and metal coordination in self-assembly and mechanics of histidine-rich domains

2018 ◽  
Vol 109 ◽  
pp. 229-236 ◽  
Author(s):  
Ana Trapaidze ◽  
Mariapia D'Antuono ◽  
Peter Fratzl ◽  
Matthew James Harrington
Keyword(s):  
Self Assembly ◽  
Metal Coordination ◽  
Polymer Hybrids ◽  
Mussel Byssus

scholarly journals Mussel-Inspired Self-Healing Double-Cross-Linked Hydrogels by Controlled Combination of Metal Coordination and Covalent Cross-Linking

2017 ◽  
Vol 19 (5) ◽  
pp. 1402-1409 ◽  
Author(s):  
Amanda Andersen ◽  
Marie Krogsgaard ◽  
Henrik Birkedal
Keyword(s):  
Metal Coordination ◽  
Cross Linking ◽  
Self Healing ◽  
Double Cross

scholarly journals A Highly Stretchable, Tough, Fast Self-Healing Hydrogel Based on Peptide–Metal Ion Coordination

Biomimetics ◽  
2019 ◽  
Vol 4 (2) ◽  
pp. 36 ◽  
Author(s):  
Liang Zeng ◽  
Mingming Song ◽  
Jie Gu ◽  
Zhengyu Xu ◽  
Bin Xue ◽  
...  
Keyword(s):  
Mechanical Strength ◽  
Coordination Number ◽  
Metal Ion ◽  
Mechanical Performance ◽  
Dynamic Properties ◽  
Healing Time ◽  
Metal Coordination ◽  
Self Healing ◽  
Number Of Binding Sites ◽  
Coordination Bonds

Metal coordination bonds are widely used as the dynamic cross-linkers to construct self-healing hydrogels. However, it remains challenging to independently improve the toughness of metal coordinated hydrogels without affecting the stretchability and self-healing properties, as all these features are directly correlated with the dynamic properties of the same metal coordination bonds. In this work, using histidine–Zn2+ binding as an example, we show that the coordination number (the number of binding sites in each cross-linking ligand) is an important parameter for the mechanical strength of the hydrogels. By increasing the coordination number of the binding site, the mechanical strength of the hydrogels can be greatly improved without sacrificing the stretchability and self-healing properties. By adjusting the peptide and Zn2+ concentrations, the hydrogels can achieve a set of demanding mechanical features, including the Young’s modulus of 7–123 kPa, fracture strain of 434–781%, toughness of 630–1350 kJ m−3, and self-healing time of ~1 h. We anticipate the engineered hydrogels can find broad applications in a variety of biomedical fields. Moreover, the concept of improving the mechanical strength of metal coordinated hydrogels by tuning the coordination number may inspire the design of other dynamically cross-linked hydrogels with further improved mechanical performance.

Fouling resistant silicone coating with self-healing induced by metal coordination

2021 ◽  
Vol 406 ◽  
pp. 126870
Author(s):  
Peng Hu ◽  
Qingyi Xie ◽  
Chunfeng Ma ◽  
Guangzhao Zhang
Keyword(s):  
Metal Coordination ◽  
Self Healing ◽  
Silicone Coating

An “Inner Soft External Hard”, Scratch-Resistant, Self-Healing Waterborne Poly(urethane-urea) Coating Based on Gradient Metal Coordination Structure

2021 ◽  
pp. 131883
Author(s):  
Yeming Sheng ◽  
Minhui Wang ◽  
Kangping Zhang ◽  
Zhenyu Wu ◽  
Yaxin Chen ◽  
...  
Keyword(s):  
Metal Coordination ◽  
Self Healing ◽  
Coordination Structure
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