Millable polyurethane/cellulose acetate/nanohydroxyapatite composite film as a flexible ferro-piezoelectric nanogenerator for innovative applications in physiological motion sensing

This work examines flexible ferro-piezoelectric composites based on a millable polyurethane and cellulose acetate blend reinforced with nanohydroxyapatite. A prototype device was fabricated, and the output voltage generation was measured.