报告摘要: Optical tweezers, recognized with the 2018 Nobel Prize in Physics, have showcased exceptional capabilities in manipulating micro- and nanoparticles. In comparison, acoustic tweezers provide stronger radiation forces, greater penetration depth, and reduced thermal damage, making them particularly suitable for biological applications, especially in vivo. Nonetheless, traditional acoustic tweezers face several challenges such as long wavelengths, diffraction limits, and rigid designs, limiting their precision and broader application in biomedicine. In this presentation, I will share our advancements in shaping sound waves for advanced acoustic tweezers and address these challenges. First, we designed localized gradient acoustic field to create a precise platform for high-throughput cellular manipulation. Second, we developed 3D acoustic tweezers to enable multidimensional manipulation in complex environments. Third, we innovated structured resonant fields to facilitate controllable trapping and releasing, laying the groundwork for targeted drug delivery near vascular stents. Finally, I will prospect ultrasound-assisted drug delivery, both in vivo and in vitro, and explore the future development of on-demand acoustic tweezer technologies tailored for practical medical applications. |