Direct ink writing of PEDOT eutectogels as substrate-free dry electrodes for electromyography
Ana Aguzin, Antonio Dominguez‐Alfaro, Miryam Criado‐Gonzalez, Santiago Velasco‐Bosom, Matías L. Picchio, Nerea Casado, Eleni Mitoudi‐Vagourdi, Roque J. Minari, George G. Malliaras, David Mecerreyes
Abstract
on the forearm and the thumb of human volunteers for electromyography measurements. Eutecta2 hexagonal patterns showed excellent conformability, and their signal-to-noise ratio (SNR) was higher than Ag/AgCl commercial electrodes for thumb motion measurements. Furthermore, forearm motion was measured after 14 days with similar values of SNR, demonstrating long-term stability and reusability. All in all, our findings revealed that DES could be used as inexpensive and safe additives to direct the self-assembly of PEDOT:PSS into supramolecular eutectogels inks for flexible bioelectronics.