67. [Chem. Eur. J.] Multipurpose and Durable Adhesive Hydrogel Assisted by Adenine and Uracil from Ribonucleic Acid
作者：Xin Liu, Qin Zhang, Kunming Li, Lijie Duan, and Guanghui Gao
關鍵字：hydrogels
論文來源：期刊
發表時間：2018年
Abstract: Nucleobase pairs of adenine and uracil (A-U) from
ribonucleic acid are of particular interest for various promising
material properties. Herein, a novel polyacrylamide hydrogel
with adhesive properties that are assisted by adenine
and uracil has been designed and investigated. The incorporation
of adenine and uracil enables the formation of a polyacrylamide
hydrogel with remarkable adhesive behaviour
with various materials including polytetrafluoroethylene
(PTFE), plastics, rubber, glasses, metal, ceramics and wood.
Moreover, the adhesive hydrogel can easily and directly
adhere to humid biological tissues without any extra process,
including heart, liver, spleen, lung, kidney, bone and
muscle of mouse. More impressively, even after repeated
peeling tests (10V), the AU-mediated polyacrylamide hydrogel
still exhibits excellent durable adhesion for various materials.
From mechanical contact tests, the adhesion energy of
the A-U adhesive hydrogel is 47.9 Jm@2, which is nearly nine
times that of polyacrylamide hydrogel (5.3 Jm@2). The 908
peeling strength for aluminium, titanium, silica rubbers,
glasses, PTFE and hogskin is 518, 645, 445, 396, 349, and
119 Nm@1, respectively. The multipurpose and durable adhesive
behaviour of hydrogels assisted by adenine and uracil
indicated the promise of nucleobase pairs from ribonucleic
acid for the future development of adhesive materials.