Biodegradable electronic fibers offer high flexibility,large surface area,and spatial deformability,enabling conformal tissue contact,efficient signal acquisition,and minimal invasiveness—ideal for sustainable and tr...Biodegradable electronic fibers offer high flexibility,large surface area,and spatial deformability,enabling conformal tissue contact,efficient signal acquisition,and minimal invasiveness—ideal for sustainable and transient electronics.However,previously developed biodegradable conductivefibers often suffered from incomplete degradability,limited flexibility,and scalability.Here,we introduce a biodegradable,flexible,and mass-producible fiber electrode,consisting of tungsten microparticles,a polybutylene adipate-co-terephthalate matrix and a poly butanedithiol 1,3,5-triallyl-1,3,5-triazine-2,4,6(1H,3H,5H)-trione pentenoic anhydride coating.The dry-jet wet-spinning process ensures uniform filler dispersion and continuous fiber formation,yielding high conductivity(~2500 S m^(-1))over lengths exceeding 10 m.The coating provides flexibility(~38%strain)and durability against repeated deformation and laundering.We demonstrate wearable textile electronics by integrating fiber-based temperature sensors,electromyography electrodes,and a wireless coil into an arm sleeve.Finally,enzymatic and soil biodegradation tests highlight their potential as sustainable and eco-friendly disposable electronics.展开更多
基金supported by the National R&D Program through the National Research Foundation of Korea funded by the Ministry of Science and ICT(Grant No.2022M3H4A1A04096393 and Grant No.RS-2025-02305569).
文摘Biodegradable electronic fibers offer high flexibility,large surface area,and spatial deformability,enabling conformal tissue contact,efficient signal acquisition,and minimal invasiveness—ideal for sustainable and transient electronics.However,previously developed biodegradable conductivefibers often suffered from incomplete degradability,limited flexibility,and scalability.Here,we introduce a biodegradable,flexible,and mass-producible fiber electrode,consisting of tungsten microparticles,a polybutylene adipate-co-terephthalate matrix and a poly butanedithiol 1,3,5-triallyl-1,3,5-triazine-2,4,6(1H,3H,5H)-trione pentenoic anhydride coating.The dry-jet wet-spinning process ensures uniform filler dispersion and continuous fiber formation,yielding high conductivity(~2500 S m^(-1))over lengths exceeding 10 m.The coating provides flexibility(~38%strain)and durability against repeated deformation and laundering.We demonstrate wearable textile electronics by integrating fiber-based temperature sensors,electromyography electrodes,and a wireless coil into an arm sleeve.Finally,enzymatic and soil biodegradation tests highlight their potential as sustainable and eco-friendly disposable electronics.
