Publications by authors named "Yong-June Chang"
Background/aim: Fat grafting has been widely used for soft-tissue augmentation. External volume expansion (EVE) is a favorable tool for improvement in the rate of fat graft retention. However, few studies have focused on the most appropriate time for its implementation.
View Article and Find Full Text PDFBackground: Extracranial vascular malformations affect vessel inflammation, clotting, and ischemia. However, the relationship between extracranial vascular malformations and myocardial infarction (MI) or stroke has not been fully elucidated. Limited studies have investigated the association between extracranial vascular malformations and cardiovascular diseases.
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- The study focused on the importance of the tongue in speech and swallowing, emphasizing the need for immediate reconstruction after glossectomy for cancer to enhance quality of life.
- It compared two surgical techniques for tongue reconstruction in patients who had undergone total glossectomy: the free vertical latissimus dorsi flap (FvLDF) and other common flaps like the radial free forearm flap (RFFF).
- Results showed that the FvLDF provided better donor site recovery, fewer complications, and good aesthetic outcomes, making it a promising option for reconstructing tongue defects after surgery.
Article Synopsis
- Extracranial vascular malformations are abnormal blood vessel formations outside the brain, arising during fetal development, and varying in symptom severity and treatment needs.
- This study evaluated over 70,000 patients from 2008 to 2021 in Korea to analyze the incidence (9.85 cases per 100,000) and mortality rates associated with different vascular malformation types.
- Results indicated that patients with most vascular malformations, particularly arteriovenous malformations, had higher mortality rates than matched controls, except for patients with venous malformations.
Background/aim: The skin protects the body from ultraviolet rays and other external factors. Various studies have been conducted to identify methods to prevent skin aging and damage. To investigate the protective effects of methylsulfonylmethane (MSM), in this study, a hairless mouse model was used.
View Article and Find Full Text PDFLattice distortion induced by residual stresses can alter electronic and mechanical properties of materials significantly. Herein, a novel way of the bandgap tuning in a quantum dot (QD) by lattice distortion is presented using 4-nm-sized CdS QDs grown on a TiO2 particle as an application example. The bandgap tuning (from 2.
View Article and Find Full Text PDFAmong the interests in the application of quantum dots (QDs), the bandgap tuning is of key importance in controlling their material properties. The bandgap of a QD can be adjusted by adopting a variety of different physicochemical methods. Herein, a novel way of the bandgap tuning is developed in an Ag2S-based QD system by suitably quenching the transformation from monoclinic Ag2S to cubic Ag and by subsequently inducing a lattice-distorted region of ≈1-nm-scale in a QD.
View Article and Find Full Text PDFIon exchange using aerosol OT (AOT) offers dye adsorption twice as fast as known methods. Moreover, it suppresses the dye-agglomeration that may cause insufficient dye-coverage on the photoelectrode surface. Consequently, its dual function of fast dye-loading and higher dye-coverage significantly improves the power conversion efficiency of dye-sensitized solar cells.
View Article and Find Full Text PDFThe sea urchin TiO(2) (SU TiO(2)) particles composed of radially aligned rutile TiO(2) nanowires are successfully synthesized through the simple solvothermal process. SU TiO(2) was incorporated into the TiO(2) nanoparticle (NP) network to construct the SU-NP composite film, and applied to the CdS/CdSe/ZnS quantum-dot-sensitized solar cells (QDSSCs). A conversion efficiency of 4.
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