April 22 - 26, 2024
Seattle, Washington
May 7 - 9, 2024 (Virtual)

Event Supporters

2024 MRS Spring Meeting
SB08.09.02

Flexible Transducers for Ultrasound Neuromodulation

When and Where

Apr 24, 2024
4:00pm - 4:30pm
Room 433, Level 4, Summit

Presenter(s)

Co-Author(s)

Hyunjoo Lee1,Sang-Mok Lee1,Taemin Lee1,Seunghyeon Nam1

KAIST1

Abstract

Hyunjoo Lee1,Sang-Mok Lee1,Taemin Lee1,Seunghyeon Nam1

KAIST1
Wearable ultrasound patches possess the potential to transform conventional medical ultrasound applications by enabling hands-free, prolonged, and uninterrupted diagnostic and therapeutic procedures. However, current flexible ultrasound transducers often lack the ability to govern their curvature and are limited in terms of production throughput and design flexibility. In this work, we present a method for fabricating flexible ultrasound transducers with controllable curvature, utilizing high-yield silicon microfabrication and employing flex-to-rigid structures. The transducer's curvature is modulated through Joule heating, utilizing a low-melting-point metal alloy. The transducer demonstrates remarkable electrical and acoustical performance at central frequencies of 1.5 MHz and 3.4 MHz when immersed. We deploy this flexible transducer to induce neuromodulation of immune responses within an internal organ, illustrating the potential for continuous therapeutic interventions via a wearable ultrasound patch.

Keywords

acoustic emission

Symposium Organizers

Guosong Hong, Stanford University
Seongjun Park, Korea Advanced Institute of Science and Technology
Alina Rwei, TU Delft
Huiliang Wang, The University of Texas at Austin

Symposium Support

Bronze
Cell Press

Session Chairs

Guosong Hong
Seongjun Park

In this Session