Intermolecular self-assembly of dopamine-conjugated carboxymethylcellulose and carbon nanotubes toward supertough filaments and multifunctional wearables

The utilization of smart textiles, mainly in the form yarns and wovens, requires high structural toughness flexibility. To this end, we introduce a strategy based on intermolecular self-assembly dopamine-conjugated carboxymethyl cellulose (DA-CMC) with carbon nanotubes (CNT). Upon coagulation nonsolvent, DA-CMC/CNT suspensions readily composite filaments by effects hydrogen bonding, H-pi, anion-pi, pi-pi interactions, as demonstrated molecular dynamic simulation. display super-toughness (~76.2 MJ m?3), extensibility (strain to failure ~14.8% at 90% RH, twice that dopamine-free analogous systems) electrical conductivity. Moreover, conductive networks effectively support bending, strain compression air or fluid media. As such, they are suitable for application wearables devices designed sensing electrothermal heating. Our proposed, scalable synthesis multifunctional opens new opportunities given their electroactivity suitability human interfacing.