Fig. 1. Pattern diagram of chemical structural formula, tunable mechanical and self-healing properties, and in vivo biomedical applications of SHEs.

a Abbreviation and full name of SHEs with its chemical structural formula. b Presentations of tunable mechanic by adjusting the degree of crosslink. c Pattern diagram of self-healing property of SHEs. d Pattern diagram of biodegradability of SHEs. e Three applications of SHEs in biomedical area in vivo. (From up to down) Fractured sternum bone immobilisation, wrapping aneurysm for limiting the progress, and LEGO-playing peripheral nerve coaptation. SHE self-healing elastomer.