Back

Neural Stimulation in vitro and in vivo by Photoacoustic Nanotransducers

Huang, Y.; Jiang, Y.; Luo, X.; Wu, J.; Zong, H.; Shi, L.; Cheng, R.; Jiang, S.; Jia, X.; Mei, J.; Man, H.; Cheng, J.-X.; Yang, C.

2020-05-23 neuroscience
10.1101/2020.05.20.106898 bioRxiv
Show abstract

Neuromodulation is an invaluable approach for study of neural circuits and clinical treatment of neurological diseases. Here, we report semiconducting polymer nanoparticles based photoacoustic nanotransducers (PANs) for neural stimulation. Our PANs strongly absorb light in the near-infrared second window and generate localized acoustic waves. PANs can also be surface-modified to selectively bind onto neurons. PAN-mediated activation of primary neurons in vitro is achieved with ten 3-nanosecond laser pulses at 1030 nm over a 3 millisecond duration. In vivo neural modulation of mouse brain activities and motor activities is demonstrated by PANs directly injected into brain cortex. With millisecond-scale temporal resolution, sub-millimeter spatial resolution and negligible heat deposition, PAN stimulation is a new non-genetic method for precise control of neuronal activities, opening potentials in non-invasive brain modulation.

Matching journals

The top 6 journals account for 50% of the predicted probability mass.

50% of probability mass above

"Similar papers" are the closest papers from that journal in the model's embedding space. They show what the match is built on, but the ranking comes mostly from a classifier over the whole training set, not from these examples alone.