Trilysine (TFA) is derived from lysine and rapidly undergoes polymerization with PEG esters to form a three-dimensional absorbable hydrogel. This process is mild to tissues, exothermic reaction-free, and causes minimal tissue response. Trilysine (TFA) and PEG esters form a hydrogel with strong mechanical adhesion, high cohesive strength, and flexibility, which adapts to the natural expansion and contraction of lung tissues.