Fig. 1: Highly stretchable, processable, biodegradable elastomers for versatile applications of transient electronics.

a Molecular structure of poly(L-lactide-co-ε-caprolactone) (PLCL) elastomer synthesized from biocompatible/biodegradable cyclic esters, L-lactide and ε-caprolactone, and proposed mechanism for reversible chain motions during tensile stretching. b PLCL elastomer-based artificial flower, whose individual leaf describes features of stretchability, degradability, and processability, and potential applications for conductive polymer composites, soft robotics, and bio-integrated electronics. c A thin PLCL film (thickness, ~100 μm) on fungi Aspergillus flavus, for enzymatic degradation, with a magnified view of the fungi in the inset. d, e A collection of optical images of the enzymatic degradation (d) and the corresponding changes in weight ratio (e) of a PLCL film (140k) at 37 °C under relative humidity (RH) of 50%.