In this podcast episode, MRS Bulletin’s Laura Leay interviews Antonio Dominguez-Alfaro from the University of Cambridge, UK about the development of a single-step manufacturing approach for a multimaterial 3D-printing method. The research team created two inks. One ink is a polymeric deep eutectic solvent – polyDES – made by combining and heating two salts to form a deep eutectic monomer and adding a photo-initiator to allow the ink to be cured. This ink is an ionic conductor so can capture signals from neurons inside a biological system. The other ink was based on the polymer Poly(3,4-ethylenedioxythiophene) polystyrene sulfonate (PEDOT:PSS), which is commonly used in bioelectronics as a mixed electronic and ionic conductor. The work resolves many challenges of applying additive manufacturing in the field of bioelectronics. This work was published in a recent issue of Advanced Science.
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