scholarly journals Preparation of conductive self-healing hydrogels via an interpenetrating polymer network method

RSC Advances ◽  
2021 ◽  
Vol 11 (12) ◽  
pp. 6620-6627
Author(s):  
Huan-Jung Wang ◽  
Yi-Zuo Chu ◽  
Chen-Kang Chen ◽  
Yi-Shun Liao ◽  
Mei-Yu Yeh

A new type of conductive interpenetrating polymer network hydrogel exhibited self-healing reversibility mechanically and electrically when cut and self-healed, making it possible to apply in soft and conformable electronics.

RSC Advances ◽  
2018 ◽  
Vol 8 (31) ◽  
pp. 17044-17055 ◽  
Author(s):  
Tuhin Ghosh ◽  
Niranjan Karak

A tough IPN of silicone containing polyurethane and polystyrene with smart attributes like self-healing, shape memory and self-cleaning is reported.


2003 ◽  
Vol 57 (22-23) ◽  
pp. 3606-3608 ◽  
Author(s):  
Qingchun Zhao ◽  
Wenming Chen ◽  
Qingren Zhu

2020 ◽  
Author(s):  
bowen fan ◽  
Kai Zhang ◽  
Qian Liu ◽  
Rienk Eelkema

<p>Introduction of dynamic thiol-alkynone double addition crosslinks in a polymer network enable the formation of a self-healing injectable polymer hydrogel. A 4-arm polyethylene glycol (PEG) tetra-thiol star polymer is crosslinked by a small molecule alkynone via the thiol-alkynone double adduct, to generate a hydrogel network under ambient aqueous conditions (buffer pH=7.4 or 8.2, room temperature). The mechanical properties of these hydrogels can be easily tuned by varying the concentration of polymer precursors. Through the dynamic thiol-alkynone double addition crosslink, these hydrogels are self-healing and shear thinning, as demonstrated by rheological measurements, macroscopic self-healing and injection tests. These hydrogels can be injected through a 20G syringe needle and recover after extrusion. In addition, good cytocompatibility of these hydrogels is confirmed by cytotoxicity test. This work shows the application of a new type of dynamic covalent chemistry in the straightforward preparation of self-healing injectable hydrogels, which may find future biomedical applications such as tissue engineering and drug delivery.</p>


1994 ◽  
Vol 28 (6) ◽  
pp. 745-753 ◽  
Author(s):  
Traian V. Chirila ◽  
Sarojini Vijayasekaran ◽  
Robert Horne ◽  
Yi-Chi Chen ◽  
Paul D. Dalton ◽  
...  

2020 ◽  
Author(s):  
bowen fan ◽  
Kai Zhang ◽  
Qian Liu ◽  
Rienk Eelkema

<p>Introduction of dynamic thiol-alkynone double addition crosslinks in a polymer network enable the formation of a self-healing injectable polymer hydrogel. A 4-arm polyethylene glycol (PEG) tetra-thiol star polymer is crosslinked by a small molecule alkynone via the thiol-alkynone double adduct, to generate a hydrogel network under ambient aqueous conditions (buffer pH=7.4 or 8.2, room temperature). The mechanical properties of these hydrogels can be easily tuned by varying the concentration of polymer precursors. Through the dynamic thiol-alkynone double addition crosslink, these hydrogels are self-healing and shear thinning, as demonstrated by rheological measurements, macroscopic self-healing and injection tests. These hydrogels can be injected through a 20G syringe needle and recover after extrusion. In addition, good cytocompatibility of these hydrogels is confirmed by cytotoxicity test. This work shows the application of a new type of dynamic covalent chemistry in the straightforward preparation of self-healing injectable hydrogels, which may find future biomedical applications such as tissue engineering and drug delivery.</p>


RSC Advances ◽  
2019 ◽  
Vol 9 (67) ◽  
pp. 39515-39522 ◽  
Author(s):  
Mimpin Ginting ◽  
Indra Masmur ◽  
Subur P. Pasaribu ◽  
Hestina Hestina

The semi-interpenetrating polymer network hydrogel possesses self-healing ability due to the dynamic ionic interactions between polyacrylic acid and Fe3+. The antibacterial properties are due to embedded silver chloride nanoparticles well-distributed in the hydrogel.


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