research Hair Extensions: Anatomic, Biological, And Clinical Implications In Alopecia February 2026 in “Journal of Craniofacial Surgery Open” Hair extensions can damage scalp health and cause hair loss, especially with prolonged use.
research From Piezoelectric Nanogenerator to Non-Invasive Medical Sensor: A Review 8 citations , January 2023 in “Biosensors” Piezoelectric Nanogenerators are promising for non-invasive health monitoring but need efficiency and durability improvements.