A5067841844- Ultrasound and Hyperthermia Applications
- Photoacoustic and Ultrasonic Imaging
- Ultrasound Imaging and Elastography
- Microfluidic and Bio-sensing Technologies
- Bone Tissue Engineering Materials
- Microfluidic and Capillary Electrophoresis Applications
- Dental Implant Techniques and Outcomes
- Nanoplatforms for cancer theranostics
- Thermography and Photoacoustic Techniques
- Dental Radiography and Imaging
- Orbital Angular Momentum in Optics
- Microbial Inactivation Methods
Pohang University of Science and Technology
2018-2024
Seoul National University Dental Hospital
2017
Dual-mode photoacoustic/ultrasound endoscopy (ePAUS) is a promising tool for preclinical and clinical interventions. To be clinically useful, ePAUS must deliver high-performance ultrasound imaging comparable to commercial systems maintain high photoacoustic performance at long working distances. This requires transducer with an intact physical aperture coaxial alignment of acoustic optical beams within the probe, challenging integration task. We present probe miniaturized, optically...
Current miniaturized ultrasound transducers suffer from insufficient attenuation the backing layer due to their limited thickness. The thickness of is one critical factors determining device size and transducer performance for inserted operated in a space. Glass bubbles, polyamide resin, tungsten powder are combined form new highly attenuative material. It has high (>160 dB/cm at 5 MHz), which five times greater than silver-based conductive epoxy commonly used high-frequency transducers,...
We present a back-to-back (BTB) structured, dual-mode ultrasonic device that incorporates single-element 5.3 MHz transducer for high-intensity focused ultrasound (HIFU) treatment and 20.0 high-resolution imaging. Ultrasound image-guided surgical systems have been developed lesion monitoring to ensure is correctly administered at the right locations. In this study, we dual-element composed of two elements share same housing but work independently with BTB structure, enabling mode change...
To evaluate the effect of different surgical techniques on primary stability, particularly in poor-quality bone with or without a crestal cortical bone.Three implant site preparation techniques-undersized drilling (UD), undersized and coronal widening drill (UD + CD), tapping tap CT)-were compared 2 low-density polyurethane models either bone. Insertion torque values (ITVs) for each technique was recorded.Statistically significant difference observed all 3 techniques. In presence bone, peak...
Photoacoustic (PA) imaging has become one of the promising biomedical technologies in past decade, thanks to its advantages structural, functional, capabilities and seamless integration with conventional ultrasound imaging. Endoscopic photoacoustic (ePAUS) is combination PA technology endoscopic (EUS). In design ePAUS, it ideal align optical beam laser acoustic transducer on same axis achieve high spatial resolution long range. Existing ePAUS uses a ring or combiner obtain coaxial rather an...
Ultrasonic levitation techniques have been developed as a promising tool for drug delivery in the human body an acoustic wave led to manipulating and translating single object or objects through air water. The single-beam tweezer (SBAT) has definitive advantage over other methods because it only employs one-sided ultrasound. In this study, we elucidated that SBAT could levitate red blood cell (RBC) aggregation with strong lateral trapping forces. This work offers significant step forward...