Piezoresistive ink, methods and uses thereof

A printable piezoresistive ink comprising:

• 30-90% wt/wt ink of a thermoplastic elastomer copolymer selected from the group consisting of styrene-butadiene-styrene (SBS) and styrene ethylene butylene styrene (SEBS) and mixtures thereof;
• a filler comprising conductive nanostructures of carbon or metal or a combination thereof;
• 2.5-30% wt/wt ink of a solvent selected from the group consisting of:
• chloroform, methoxycyclopentane, 1,3-dioxolane, dimethylformamide, or combinations of the foregoing;
• and
• a dispersive agent comprising, as surfactants, a compound selected from the group consisting of:
• sodium dodecyl sulfate, cetyl trimethylammonium bromide, citric acid, or combinations of the foregoing,
• wherein a ratio of solvent/thermoplastic elastomer copolymer (v/v) is between 3/1 and 12/1.