Xuandi Hou, Jianing Jing, Yizhou Jiang, Xiaohui Huang, Quanxiang Xian, Ting Lei, Jiejun Zhu, Kin Fung Wong, Xinyi Zhao, Min Su, Danni Li, Langzhou Liu, Zhihai Qiu, Lei Sun
Ultrasound is an acoustic wave which can noninvasively penetrate the skull to deep brain regions, enabling neuromodulation. However, conventional ultrasound's spatial resolution is diffraction-limited and low-precision. Here, we report acoustic nanobubble-mediated ultrasound stimulation capable of localizing ultrasound's effects to only the desired brain region in male mice. By varying the delivery site of nanobubbles, ultrasound could activate specific regions of the mouse motor cortex, evoking EMG signaling and limb movement, and could also, separately, activate one of two nearby deep brain regions to elicit distinct behaviors (freezing or rotation)...
March 13, 2024: Nature Communications