Photo-sono activated BNT@MoS₂ composites for rapid eradication of breast cancer

Non-invasive external energy triggered efficient tumor therapy is a promising specific treatment strategy. Herein, a composite material of bismuth sodium titanate (BNT) and molybdenum disulfide (MoS₂) with piezoelectric effect was designed for the synergistic treatment of breast cancer with near-infrared-II (NIR-II) light and ultrasound (US) activation. The BNT@MoS₂ exhibit excellent photothermal and acoustic properties upon excitation by 1060 nm NIR-II laser and US, respectively. The synergistic effect of hyperthermia and reactive oxygen species (ROS) under photoacoustic action endows the BNT@MoS₂ with remarkable anti-tumor activities, enabling them to eradicate breast cancer cells within 10 min. The work could provide new insights into the treatment of breast cancer.