Young-jae Choi

Cell-free micro-ribonucleic acids (cf-miRNAs) regulate most human genes by controlling the mRNA translation and have been considered as the most promising biomarkers for cancer diagnosis and prognosis. Due to their low abundance, short length, and similar sequences, an attractive approach that is ultrasensitive and label-free is highly demanded. Herein, we develop a label-free, ultra-high sensitivity and selectivity multiplex miRNA using surface-enhanced Raman scattering to detect cancer-associa

OBJECTIVES: This study was designed to evaluate whether employment status is associated with the experience of unmet dental care needs. METHODS: A total of 4620 workers were retrieved from Korea Health Panel data (2010-2013), and potential relationships were explored among their income levels, changes in employment and unmet dental care needs. RESULTS: Among the 4620 workers, 17.3% said they had failed at least once to get dental treatment or check-up, despite their needs. Precarious workers and

We have successfully synthesized the high-quality single crystals of double perovskite La2CoMnO6 by flux method and investigated the effects of different annealing conditions on the magnetic properties. In an as-grown crystal, ferromagnetic order along the c axis arises below 204 K, and the spin-glass-type behavior inherent from ionic disorders is also observed. Upon annealing in different gas environments, the reconstructed magnetic states induce a metamagnetic transition (after Ar annealing),

Advancements in nanotechnology led to significant improvements in synthesizing plasmon-enhanced nanoarchitectures for biosensor applications, and high-yield productivity at low cost is vital to step further into medical commerce. Metal nanoframes via wet chemistry are gaining attention for their homogeneous structure and outstanding catalytic and optical properties. However, nanoframe morphology should be considered delicately when brought to biosensors to utilize its superior characteristics th

Lipoma is a very common benign tumor that occurs in areas of adipose tissue and is commonly found on the whole body, although its occurrence in the hand and finger is rare. Giant lipoma, defined as over 5 cm long in diameter, is a rare benign tumor of abundant soft tissue in the finger. A 24-year-old male patient presented with a giant lipoma on the volar aspect of the index finger of his right hand. Magnetic resonance imaging (MRI) showed an encased multilobulated mass that measured 7.1x1.2x2.3

Dupuytren's disease is a fibroproliferative disease that affects the palmar hand, causing progressive, permanent, and symptomatic flexion contracture of the digits. It is a disorder of polygenetic and multifactorial origin, usually affecting middle-aged males. Dupuytren's disease developing as a result of hand trauma in younger ages is rarely reported. In this case, we present a 14-year-old male patient with Dupuytren's disease following acute traumatic injury. We performed the fasciectomy and Z

Juvenile xanthogranuloma is a benign tumor made up of non-Langerhans histiocytes that predominantly occurs in infancy and early childhood. Juvenile xanthogranuloma can be differentiated from xanthoma by the distribution of the lesions and the absence of lipid abnormalities. It usually develops on the trunk and upper and lower extremities. Histologically, xanthogranulomas show a mixed cellular dermal infiltration with histiocytes, lymphocytes, eosinophils and Touton-type multinucleated giant cell

In type-I multiferroics, where ferroelectricity and magnetism arise from different origins, the explicit measurement of magnetoelectric effect is commonly prohibited due to the weak magnetoelectric coupling. From our investigation of magnetic and dielectric properties in a perovskite PbFe0.5- Ti0.25W0.25O3, we have directly demonstrated magnetic-field-driven change of dielectric constant in a highly non-linear fashion. Our result offers a potential utilization of magnetoelectric functionality in

After CdTe wafers are polished mechanically and chemically, wider, narrower bands are observed at 1.4 and 1.54 eV by photoluminescence (PL), respectively. The samples are annealed in a vacuum evaporator before depositing the electrode. Thermal annealing depending on time duration and temperature shows a change of the ratio of I/I(A0, X) (intensity ratio of the bands to that of emission from excitons trapped by neutral acceptons). The PL intensity ratio of these bands is reduced by optimum anneal

KDPC had higher 30-day unplanned re-admissions rates than did FFS.