AI Article Synopsis
- Remote and genetically targeted neuromodulation is key for treating neurological diseases, but previous methods struggled with depth limitations in the brain due to low efficiency.* -
- A new cascaded mechanoluminescent nanotransducer has been developed that generates blue light efficiently when stimulated by ultrasound, allowing for faster and more effective neural activation.* -
- This innovative liposome nanotransducer enables deep brain stimulation in animals with minimal invasiveness, enhancing behavioral control through a novel sono-optogenetic system.*
Article Abstract
Remote and genetically targeted neuromodulation in the deep brain is important for understanding and treatment of neurological diseases. Ultrasound-triggered mechanoluminescent technology offers a promising approach for achieving remote and genetically targeted brain modulation. However, its application has thus far been limited to shallow brain depths due to challenges related to low sonochemical reaction efficiency and restricted photon yields. Here we report a cascaded mechanoluminescent nanotransducer to achieve efficient light emission upon ultrasound stimulation. As a result, blue light was generated under ultrasound stimulation with a subsecond response latency. Leveraging the high energy transfer efficiency of focused ultrasound in brain tissue and the high sensitivity to ultrasound of these mechanoluminescent nanotransducers, we are able to show efficient photon delivery and activation of ChR2-expressing neurons in both the superficial motor cortex and deep ventral tegmental area after intracranial injection. Our liposome nanotransducers enable minimally invasive deep brain stimulation for behavioral control in animals via a flexible, mechanoluminescent sono-optogenetic system.
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|---|---|
| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC10932741 | PMC |
| http://dx.doi.org/10.1021/acsnano.3c06577 | DOI Listing |
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