A5045076650- Ultrasonics and Acoustic Wave Propagation
- Geophysical Methods and Applications
- Healthcare and Venom Research
- Colorectal Cancer Surgical Treatments
- Musculoskeletal pain and rehabilitation
- Concrete and Cement Materials Research
- Innovative concrete reinforcement materials
- Telecommunications and Broadcasting Technologies
- Seismic Waves and Analysis
- Spine and Intervertebral Disc Pathology
- Concrete Properties and Behavior
- Anorectal Disease Treatments and Outcomes
- Rock Mechanics and Modeling
- Health and Wellbeing Research
- Structural Health Monitoring Techniques
- Multimedia Communication and Technology
- Acute Myeloid Leukemia Research
- Vehicle Noise and Vibration Control
- Consumer Perception and Purchasing Behavior
- Diverse Topics in Contemporary Research
- Colorectal and Anal Carcinomas
- Hematopoietic Stem Cell Transplantation
- Nanoplatforms for cancer theranostics
- Colorectal Cancer Screening and Detection
- Healthcare Education and Workforce Issues
Nanyang Technological University
2025
Ulsan National Institute of Science and Technology
2020-2024
Seoul National University
2021-2023
Catholic University of Korea
2017-2022
Illinois College
2017-2022
University of Illinois Urbana-Champaign
2017-2022
St. Vincent's Hospital
2015-2021
Chonnam National University Hwasun Hospital
2016-2018
Chonnam National University Hospital
2018
Georgia Institute of Technology
2012-2017
While study in the field of polymer mechanochemistry has yielded mechanophores that perform various chemical reactions response to mechanical stimuli, there is not yet a triggering method compatible with biological systems. Applications such as using mechanoluminescence generate localized photon flux vivo for optogenetics would greatly benefit from an approach. Here we introduce by high-intensity focused ultrasound (HIFU) remote energy source drive spatially and temporally resolved...
Detecting metal ions in vivo with a high spatiotemporal resolution is critical to understanding the roles of both healthy and disease states. Although controls metal-ion sensors using light have been demonstrated, lack penetration depth tissue has limited their application. To overcome this limitation, we herein report use high-intensity focused ultrasound (HIFU) remotely deliver on-demand, spatiotemporally resolved thermal energy activate DNAzyme at targeted region vitro vivo. A...
Mechanophores are molecular motifs that respond to mechanical perturbance with targeted chemical reactions toward desirable changes in material properties. A large variety of mechanophores have been investigated, applications focusing on functional materials, such as strain/stress sensors, nanolithography, and self-healing polymers, among others. The responses engineered mechanophores, light emittance, change fluorescence, generation free radicals (FRs), potential for bioimaging therapy....
Abstract A new nonlinear ultrasonic technique for nondestructive evaluation of concrete components is developed and implemented to characterize the effects carbonation on concrete. The physical principle this method second harmonic generation (SHG) in propagating Rayleigh surface waves which are detected by a non-contact air-coupled transducer. nonlinearity parameter, as an indicator material properties, experimentally obtained from measured wave signals used quantitatively evaluate progress...
Nonlinear properties of a generic hydraulic mount with an inertia track are identified and characterized by using experimental analytical approaches. A low-frequency lumped-parameter mathematical model the is developed over 1 to 50 Hz, based on measured nonlinear system parameters such as steady-state fluid resistances chamber compliances. New experiments specifically designed for this study also described. The effect temperature dynamic discussed briefly. When compared signals under...
Raman thermometry based on surface-enhanced scattering has been developed using nanopipettes in cancer cell photothermal therapy (PTT). Gold nanorods (AuNRs) are robustly epoxied glass pipettes with a high surface coverage of ∼95% and less than 10 nm-wide nanogaps for intracellular therapy. The temperature changes could be estimated from the N≡C band shifts 4-fluorophenyl isocyanide (FPNC)-adsorbed AuNRs nanopipette (RTN) surfaces. An change ∼2.7 °C produced by altering [Ca2+] A431 cells was...
The aim of this study is to analyze inguinal hernia in Korea based on the nationwide data.Retrospective analysis data obtained from Health Insurance Review & Assessment Service database for surgical repair January, 2007 December, 2015 was performed.A total 314,238 cases surgery were performed during 9 years. mean number per year 34,604 (range, 30,065-36,928). proportion male patient 87%. Patients between age 1 5 years (17.3%) and 60 69 (17.4%) constituted 2 dominant groups repair. A slight...
Total or tumor-specific mesorectal excision can preserve pelvic autonomic nerves during rectal cancer surgery and minimize urinary dysfunction. However, catheterization several days in duration is a common practice after total excision.This study aimed to evaluate the optimal of for cancer.This retrospective review patients who underwent was performed colorectal division university-affiliated hospital.Between March 2009 February 2013, 236 fulfilled inclusion criteria. Patients combined those...
We investigated the clinical and endoscopic features of gastrointestinal lesions in adults with Henoch–Schönlein purpura (HSP) causing bleeding. The study included 24 adult HSP patients hemorrhage who underwent both upper endoscopy colonoscopy. controls were 27 without hemorrhage. Patients bleeding showed higher frequencies on extremities trunk, elevated serum C-reactive protein (CRP). rate concurrent lower tracts was 91.7 %. second portion duodenum terminal ileum most frequently severely...
We evaluated the effect of biofeedback therapy (BFT) on anorectal function after stoma closure when administered during interval temporary sphincter-preserving surgery for rectal cancer. Impaired is common lower anterior resections, though no specific treatment options are currently available to prevent this adverse outcome. Fifty-six patients who underwent neoadjuvant chemoradiation with were randomized into 2 groups: group 1 (received BFT period) and (did not receive BFT). To evaluate...