Implantable bio-chip for visible and controllable microwave-induced transcranial acoustic generation

Ultrasound neuromodulation is a powerful tool for brain investigation and holds great promise for treating brain diseases. However, due to the heterogeneous acoustic properties of skulls, existing ultrasound neuromodulation faces the challenge of severe transcranial acoustic attenuation. To overcome...

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Main Authors: Weian Chao, Ruyi Wen, Yubin Gong, Qiang Liu, Lei Xi
Format: Article
Language:English
Published: World Scientific Publishing 2025-09-01
Series:Journal of Innovative Optical Health Sciences
Subjects:
Online Access:https://www.worldscientific.com/doi/10.1142/S1793545825500129
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author Weian Chao
Ruyi Wen
Yubin Gong
Qiang Liu
Lei Xi
author_facet Weian Chao
Ruyi Wen
Yubin Gong
Qiang Liu
Lei Xi
author_sort Weian Chao
collection DOAJ
description Ultrasound neuromodulation is a powerful tool for brain investigation and holds great promise for treating brain diseases. However, due to the heterogeneous acoustic properties of skulls, existing ultrasound neuromodulation faces the challenge of severe transcranial acoustic attenuation. To overcome such limitations, we report an implantable bio-chip for visible and controllable microwave-induced transcranial acoustic generation (MI-tAG). The bio-chip is soft, flexible, and biocompatible, with a thickness of 3[Formula: see text]mm, making it suitable for human intracranial implantation. The constituted fluid channels can cover an area of 50[Formula: see text]mm × 60[Formula: see text]mm, enabling widefield neuron stimulation. The particles filled in the fluid channels have both high microwave absorption, ensuring efficient ultrasound generation, and magnetism, allowing noncontact and flexible manipulation by external magnetic fields. The experimental results demonstrate that the optimal MI-tAG can be realized by the combination of particles arranged in a linear pattern and corresponding illumination via a linearly polarized microwave. Stability evaluation indicates that the particles can maintain a consistent acoustic intensity without degradation for at least seven days. The results of in vitro and in vivo experiments show that the MI-tAG can manipulate ultrasound sources and visibly locate them in real time. This study provides a potential innovative approach for future ultrasound neuromodulation, inspiring the development of more useful methods to advance brain research. This study introduces a promising innovative approach for transcranial acoustic generation, potentially inspiring the development of more effective methods for advancing ultrasound neuromodulation.
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spelling doaj-art-0d7017baeb5d4231b9a988b9741b01c42025-08-20T02:46:57ZengWorld Scientific PublishingJournal of Innovative Optical Health Sciences1793-54581793-72052025-09-01180510.1142/S1793545825500129Implantable bio-chip for visible and controllable microwave-induced transcranial acoustic generationWeian Chao0Ruyi Wen1Yubin Gong2Qiang Liu3Lei Xi4School of Electrical Science and Engineering, University of Electronic Science and Technology of China, Chengdu, Sichuan 610054, P. R. ChinaDepartment of Biomedical Engineering, Southern University of Science and Technology, Shenzhen, Guangdong 518055, P. R. ChinaSchool of Electrical Science and Engineering, University of Electronic Science and Technology of China, Chengdu, Sichuan 610054, P. R. ChinaDepartment of Biomedical Engineering, Southern University of Science and Technology, Shenzhen, Guangdong 518055, P. R. ChinaDepartment of Biomedical Engineering, Southern University of Science and Technology, Shenzhen, Guangdong 518055, P. R. ChinaUltrasound neuromodulation is a powerful tool for brain investigation and holds great promise for treating brain diseases. However, due to the heterogeneous acoustic properties of skulls, existing ultrasound neuromodulation faces the challenge of severe transcranial acoustic attenuation. To overcome such limitations, we report an implantable bio-chip for visible and controllable microwave-induced transcranial acoustic generation (MI-tAG). The bio-chip is soft, flexible, and biocompatible, with a thickness of 3[Formula: see text]mm, making it suitable for human intracranial implantation. The constituted fluid channels can cover an area of 50[Formula: see text]mm × 60[Formula: see text]mm, enabling widefield neuron stimulation. The particles filled in the fluid channels have both high microwave absorption, ensuring efficient ultrasound generation, and magnetism, allowing noncontact and flexible manipulation by external magnetic fields. The experimental results demonstrate that the optimal MI-tAG can be realized by the combination of particles arranged in a linear pattern and corresponding illumination via a linearly polarized microwave. Stability evaluation indicates that the particles can maintain a consistent acoustic intensity without degradation for at least seven days. The results of in vitro and in vivo experiments show that the MI-tAG can manipulate ultrasound sources and visibly locate them in real time. This study provides a potential innovative approach for future ultrasound neuromodulation, inspiring the development of more useful methods to advance brain research. This study introduces a promising innovative approach for transcranial acoustic generation, potentially inspiring the development of more effective methods for advancing ultrasound neuromodulation.https://www.worldscientific.com/doi/10.1142/S1793545825500129Electromagnetic techniquesbio-chipimplantablethermoacoustictranscranial acoustic generation
spellingShingle Weian Chao
Ruyi Wen
Yubin Gong
Qiang Liu
Lei Xi
Implantable bio-chip for visible and controllable microwave-induced transcranial acoustic generation
Journal of Innovative Optical Health Sciences
Electromagnetic techniques
bio-chip
implantable
thermoacoustic
transcranial acoustic generation
title Implantable bio-chip for visible and controllable microwave-induced transcranial acoustic generation
title_full Implantable bio-chip for visible and controllable microwave-induced transcranial acoustic generation
title_fullStr Implantable bio-chip for visible and controllable microwave-induced transcranial acoustic generation
title_full_unstemmed Implantable bio-chip for visible and controllable microwave-induced transcranial acoustic generation
title_short Implantable bio-chip for visible and controllable microwave-induced transcranial acoustic generation
title_sort implantable bio chip for visible and controllable microwave induced transcranial acoustic generation
topic Electromagnetic techniques
bio-chip
implantable
thermoacoustic
transcranial acoustic generation
url https://www.worldscientific.com/doi/10.1142/S1793545825500129
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