Bioinspired strategies have drawn much attention for designing intelligent
hydrogels with promising performance. Herein, we present a bioinspired adhesive
hydrogel driven by
adenine and
thymine, which are the basic units of
DNA. The adhesive
hydrogel exhibited promising adhesive property for the surface of various solid materials, including muscle tissues, plastics, rubbers, glasses, metals, ceramics, carnelians, and woods. The maximum peeling strength of
hydrogels was 330 N m-1 on
aluminum, superior to that of PAAm
hydrogels with 70 N m-1. The strong adhesive behavior remained more than 30 times repeated peeling tests. Moreover, the swelling behavior, morphological structure, mechanical strength, and peeling adhesive strength were also investigated and confirmed the formation and various characteristics of adhesive
hydrogels driven by
adenine and
thymine. Thus, the biomimetic strategy to design promising adhesive
hydrogels can provide various opportunities in tissue engineering, such as
wound dressing, bioglues, and
tissue adhesives.