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Anti-fatigue adhesive and tough hydrogels regulated by adenine and uracil†
Polymer Chemistry ( IF 4.1 ) Pub Date : 2018-08-01 00:00:00 , DOI: 10.1039/c8py00868j Xin Liu 1, 2, 3, 4, 5 , Qin Zhang 1, 2, 3, 4, 5 , Yanchao Qiao 1, 2, 3, 4, 5 , Lijie Duan 1, 2, 3, 4, 5 , Guanghui Gao 1, 2, 3, 4, 5
Polymer Chemistry ( IF 4.1 ) Pub Date : 2018-08-01 00:00:00 , DOI: 10.1039/c8py00868j Xin Liu 1, 2, 3, 4, 5 , Qin Zhang 1, 2, 3, 4, 5 , Yanchao Qiao 1, 2, 3, 4, 5 , Lijie Duan 1, 2, 3, 4, 5 , Guanghui Gao 1, 2, 3, 4, 5
Affiliation
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Hydrogels generally possess either high strength or excellent adhesive behavior but not both, which limits their applications. Here, we present anti-fatigue, adhesive and tough hydrogels through introducing nucleobase pairs of adenine–uracil (A–U) and chemical crosslinkers of N,N′-methylene bis-acrylamide (MBA) into polyacrylamide hydrogels. The synergetic interaction of A–U and MBA endowed hydrogels with high mechanical performance and excellent adhesive behavior via the tunable balance of cohesion and adhesion. The hydrogels exhibited a tensile strength of 120 kPa, a superior stretchability of 2700%, and remarkable adhesive behavior for various materials and biological tissues, including wood, steel, copper, polytetrafluoroethylene, plastics, glass, rubber, silica rubber, spleen, liver and fat. For example, the adhesion strength of hydrogels at the surface of polytetrafluoroethylene was 190 N m−1. More importantly, the hydrogels exhibited excellent anti-fatigue compressive toughness and adhesiveness. It was envisioned that the nucleobase-tackified chemical crosslinking hydrogels with excellent anti-fatigue, tough and adhesive behavior would be widely applied in wound dressings, human wearable devices and biomedical sensors and electrodes.
中文翻译：
腺嘌呤和尿嘧啶调节抗疲劳粘合剂和坚韧的水凝胶†
水凝胶通常具有高强度或优异的粘合性能，但不能同时具有两者，这限制了它们的应用。在这里，我们通过将腺嘌呤-尿嘧啶（A-U）的核碱基对以及N，N'-亚甲基双丙烯酰胺（MBA）的化学交联剂引入聚丙烯酰胺水凝胶中来介绍抗疲劳，粘性和坚韧的水凝胶。A–U和MBA赋予水凝胶的协同作用具有较高的机械性能和优异的粘合性能，可通过内聚力和附着力的可调平衡。该水凝胶的抗张强度为120 kPa，可拉伸性达2700％，并且对各种材料和生物组织（包括木材，钢，铜，聚四氟乙烯，塑料，玻璃，橡胶，硅橡胶，脾脏，肝脏和胖的。例如，水凝胶在聚四氟乙烯表面上的粘合强度为190Nm -1。更重要的是，水凝胶表现出优异的抗疲劳压缩韧性和粘合性。可以预见，具有优异的抗疲劳性，韧性和粘合性的核碱基增粘的化学交联水凝胶将广泛应用于伤口敷料，人体可穿戴设备以及生物医学传感器和电极中。
更新日期：2018-08-01
中文翻译：
腺嘌呤和尿嘧啶调节抗疲劳粘合剂和坚韧的水凝胶†
水凝胶通常具有高强度或优异的粘合性能，但不能同时具有两者，这限制了它们的应用。在这里，我们通过将腺嘌呤-尿嘧啶（A-U）的核碱基对以及N，N'-亚甲基双丙烯酰胺（MBA）的化学交联剂引入聚丙烯酰胺水凝胶中来介绍抗疲劳，粘性和坚韧的水凝胶。A–U和MBA赋予水凝胶的协同作用具有较高的机械性能和优异的粘合性能，可通过内聚力和附着力的可调平衡。该水凝胶的抗张强度为120 kPa，可拉伸性达2700％，并且对各种材料和生物组织（包括木材，钢，铜，聚四氟乙烯，塑料，玻璃，橡胶，硅橡胶，脾脏，肝脏和胖的。例如，水凝胶在聚四氟乙烯表面上的粘合强度为190Nm -1。更重要的是，水凝胶表现出优异的抗疲劳压缩韧性和粘合性。可以预见，具有优异的抗疲劳性，韧性和粘合性的核碱基增粘的化学交联水凝胶将广泛应用于伤口敷料，人体可穿戴设备以及生物医学传感器和电极中。
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