Development of flexible piezoresistive pressure sensors <i>via</i> direct ink writing of MWCNT/PDMS nanocomposite inks: rheological and electromechanical characterization.

ABSTRACT: The integration of nanoscience and 3D printing has given rise to the emerging field of printable and flexible electronics. Direct ink writing (DIW) has transformed the field of 3D printing by using viscoelastic inks, ensuring design, intricacy, and flexibility. This study presents the fabrication of flexible piezoresistive pressure sensors using multiwalled carbon nanotubes (MWCNTs)/polydimethylsiloxane (PDMS) based conductive inks via the DIW method. Three ink formulations were prepared with MWCNT concentrations of 2 wt%, 4 wt%, and 6 wt% to investigate their rheological and printability characteristics. Rheological analysis revealed that MWCNT loading concentrations above 4 wt% impart shear-thinning behavior and solid-like viscoelastic properties essential for DIW printing. Among

SUBMITTER: Sidhu JS 

PROVIDER: S-EPMC12447840 | biostudies-literature | 2025 Oct

REPOSITORIES: biostudies-literature