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Related Concept Videos

Brain Imaging01:14

Brain Imaging

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Brain imaging technologies provide critical insights into both the structure and function of the human brain, enabling medical professionals and researchers to diagnose, study, and treat neurological disorders or psychiatric disorders more effectively.
These technologies include computerized axial tomography (CAT or CT scans), positron-emission tomography (PET scans),  magnetic resonance imaging (MRI),  functional magnetic resonance imaging (fMRI), and Transcranial Magnetic...
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Nanotransducer-Enabled Deep-Brain Neuromodulation with NIR-II Light.

Xiang Wu1,2, Fan Yang1,2, Sa Cai1,2

  • 1Department of Materials Science and Engineering, Stanford University, Stanford, California 94305, USA.

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The second near-infrared (NIR-II) window enables deep-brain neuromodulation by converting light into heat using nanotransducers. This technique offers advantages over existing optical methods for brain stimulation.

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Area of Science:

  • Biomedical Engineering
  • Optics
  • Neuroscience

Background:

  • The second near-infrared (NIR-II) window (1000-1700 nm) offers reduced light scattering for deeper tissue penetration compared to visible light.
  • NIR-II has been extensively used for deep-tissue fluorescence imaging over the last decade.
  • Recent advancements demonstrate deep-brain neuromodulation using NIR-II light and nanotransducers.

Purpose of the Study:

  • To discuss the principles and potential applications of NIR-II deep-brain neuromodulation.
  • To compare NIR-II neuromodulation with other optical deep-brain stimulation methods.
  • To highlight future research directions in materials science and bioengineering for enhanced neuromodulation.

Main Methods:

  • Leveraging nanotransducers to convert NIR-II light into heat for neuromodulation.
  • Utilizing the deep-penetration properties of the NIR-II window.
  • Comparative analysis of NIR-II neuromodulation with existing optical techniques.

Main Results:

  • Demonstration of deep-brain neuromodulation in the NIR-II window.
  • Identification of advantages of NIR-II neuromodulation, including deep tissue penetration.
  • Discussion of limitations and potential improvements for the technique.

Conclusions:

  • NIR-II deep-brain neuromodulation presents a promising approach for brain stimulation.
  • Further advances in materials science and bioengineering are crucial for expanding its capabilities.
  • This technique holds significant potential for future neuroscience research and therapeutic applications.