Original ResearchPublished 10 September 2026Polypyrrole coated nonwoven fabric as a piezoresistive sensing material: a multifunctional study on physicochemical, electromechanical, and biological assessmentHariprasad Ramachandran · Sharmila NageswaranFrontiers in Robotics and AIdoi 10.3389/frobt.2026.1917223