Overview
My research focuses on engineering and technology development with applications in the non-invasive or minimally invasive treatment of kidney stone disease via shock wave and laser lithotripsy, high-intensity focused ultrasound (HIFU) and immunotherapy for cancer treatment, acoustic and optical cavitation, and ultrasound neuromodulation via sonogenetics.
We are taking an integrated and translational approach that combines fundamental research with engineering and applied technology development to devise novel and enabling ultrasonic, optical, and mechanical tools for a variety of clinical applications. We are interested in shock wave/laser-fluid-bubble-solid interaction, and resultant mechanical and thermal fields that lead to material damage and removal. We also investigate the stress response of biological cell and tissue induced by cavitation and ultrasound exposure, mediated through mechanosensitive ion channels, such as Piezo 1. Our research activities are primarily supported by NIH and through collaborations with the medical device industry.
Current Appointments & Affiliations
Recent Publications
Nanofluid-Enhanced Laser Lithotripsy Using Conducting Polymer Nanoparticles.
Journal Article Adv Sci (Weinh) · December 2025 Urinary stone disease, characterized by the hard mineral deposits in the urinary tract, has seen a rising prevalence globally. This condition often leads to severe pain and requires medical intervention. Laser lithotripsy, a minimally invasive treatment, u ... Full text Link to item CiteOptimizing Fragmentation while Minimizing Thermal Injury Risk with the Thulium Fiber Laser in Ureteral Stone Lithotripsy: An In Vitro Study.
Journal Article J Endourol · July 2025 Objective: To optimize thulium fiber laser (TFL) settings for effective stone fragmentation although minimizing thermal injury in confined ureteral spaces using a three-dimensional ureter model. Materials and Methods: A hydrogel-based ureter model was main ... Full text Link to item CiteThree-Dimensional Super-Resolution Passive Cavitation Mapping in Laser Lithotripsy.
Journal Article IEEE Trans Ultrason Ferroelectr Freq Control · December 2024 Kidney stone disease is a major public health issue. By breaking stones with repeated laser irradiation, laser lithotripsy (LL) has become the main treatment for kidney stone disease. Laser-induced cavitation is closely associated with stone damage in LL. ... Full text Open Access Link to item CiteRecent Grants
Assessment of the Optimal Settings of TFL for Laser Lithotripsy and Associated Thermal Injury Risk
ResearchPrincipal Investigator · Awarded by National Institute of Diabetes and Digestive and Kidney Diseases · 2025 - 2028Duke KURe Program
Inst. Training Prgm or CMEMentor · Awarded by National Institute of Diabetes and Digestive and Kidney Diseases · 2013 - 2028U2C/TL1 NC KUH TRIO Administrative Core
ResearchPreceptor · Awarded by University of North Carolina - Chapel Hill · 2023 - 2028View All Grants