A5100661074- Dermatologic Treatments and Research
- Hair Growth and Disorders
- Facial Rejuvenation and Surgery Techniques
- Skin Protection and Aging
- Dermatology and Skin Diseases
- melanin and skin pigmentation
- Botulinum Toxin and Related Neurological Disorders
- Nail Diseases and Treatments
- Acne and Rosacea Treatments and Effects
- Laser Applications in Dentistry and Medicine
- Wound Healing and Treatments
- Allergic Rhinitis and Sensitization
- Body Contouring and Surgery
- Advancements in Transdermal Drug Delivery
- Cancer and Skin Lesions
- Contact Dermatitis and Allergies
- Nonmelanoma Skin Cancer Studies
- Genetic and rare skin diseases.
- Reconstructive Facial Surgery Techniques
- Graphene research and applications
- Autoimmune Bullous Skin Diseases
- Diverse Approaches in Healthcare and Education Studies
- Urticaria and Related Conditions
- Cutaneous lymphoproliferative disorders research
- Bee Products Chemical Analysis
Chung-Ang University
2016-2025
Chung-Ang University Hospital
2016-2025
Catholic University of Korea
2011-2025
Korea University
2009-2025
The University of Tokyo
2004-2024
Gyeongsang National University
2024
Seoul National University Bundang Hospital
2006-2024
Hanyang University
2009-2024
Daegu University
2024
Laboratory for Integrated Micro-Mechatronic Systems
2024
A high-performance low-voltage graphene field-effect transistor (FET) array was fabricated on a flexible polymer substrate using solution-processable, high-capacitance ion gel gate dielectrics. The high capacitance of the gel, which originated from formation an electric double layer under application voltage, yielded on-current and low voltage operation below 3 V. FETs plastic substrates showed hole electron mobility 203 +/- 57 91 50 cm(2)/(V x s), respectively, at drain bias -1 Moreover,...
With the emergence of human interface technology, development new applications based on stretchable electronics such as conformal biosensors and rollable displays are required. However, difficulty in developing semiconducting materials with high stretchability required for has restricted range electronics. Here, we present stretchable, printable, transparent transistors composed monolithically patterned graphene films. This material offers excellent mechanical, electrical, optical...
A piezopotential-powered active matrix strain sensor array based on a piezopotential-gated graphene transistor (GT) is demonstrated using piezoelectric polymer. The the GT exhibits excellent performance, including ultrahigh sensitivity (gauge factor = 389) and good durability (>3000 bending releasing cycles) with minimum detectable at 0.008%.
Transfer characteristics of ZnO thin-film transistors (TFTs) based on doped with various alkali metals. A new doping method is demonstrated by employing metals to achieve high-performance and solution-processed TFTs a low processing temperature (∼300 °C), which applicable flexible plastic substrates.
Increased risk of cardiovascular disease in patients with chronic renal failure (CRF) has been explained by accelerated atherosclerosis and impaired angiogenesis, which endothelial progenitor cells (EPCs) may play key roles. We hypothesized that altered EPC biology contribute to the pathophysiology CRF.EPCs were isolated from CRF on maintenance hemodialysis (n=44) a normal control group (n=30). showed markedly decreased numbers (44.6%) colonies (75.3%) when compared controls (P<0.001). These...
Glucose oxidase immobilized in mesocellular carbon foam results a highly sensitive and fast glucose biosensor. The structure of the (see Figure), with combination mesopores containing (GOx) enzymes micropores transport channels, high enzyme loading low mass-transfer limitations, producing higher catalytic activity sensitivity than polymer-matrix-based GOx sensors.
Ablative carbon dioxide (CO(2) ) fractional resurfacing is a promising therapeutic intervention for the treatment of acne scars, although this technique associated with prolonged surgical site erythema and edema, which may affect daily lives patients. Autologous platelet-rich plasma (PRP) known to enhance wound healing has applications in many areas medicine.To evaluate synergistic effects autologous PRP CO(2) scars.A split-face trial was conducted 14 Korean participants scars. All received...
Abstract Background There have been considerable disagreements regarding the therapeutic effects of probiotics in atopic dermatitis ( AD ). We performed this study to examine whether oral administration L actobacillus plantarum CJLP 133 improves pediatric . Methods In a randomized, double‐blind, placebo‐controlled study, either at dosage 0.5 × 10 colony‐forming units or placebo children aged 12 months 13 yr was given twice day for wk. SCOring Atopic Dermatitis SCORAD ) scores, eosinophil...
The human scalp harbors a vast community of microbial mutualists, the composition which is difficult to elucidate as many microorganisms are not culturable using current culture techniques. Dandruff, common disorder, known causative factor mild seborrheic dermatitis well pityriasis versicolor, dermatitis, and atopic dermatitis. Lipophilic yeast Malassezia widely accepted play role in dandruff, but relatively few comprehensive studies have been reported. In order investigate fungal biota...
Transparent flexible graphene transistors and inverters in a coplanar-gate configuration were presented for the first time using only two materials: an ion gel gate dielectric. The novel device simplifies fabrication such that printing steps required to fabricate inverters. devices exhibited excellent performances including low-voltage operation with high transistor-on-current mobility, mechanical flexibility, environmental stability, reasonable inverting behavior upon connecting transistors.
Background: Microneedle is a method that creates transdermal microchannels across the stratum corneum barrier layer of skin.No previous study showed therapeutic effect microneedle itself on hair growth by wounding.Objective: The aim this to investigate repeated microwound formed and growth-related genes in murine model.Methods: A disk roller was applied each group mice five times week for three weeks.First, identify optimal length cycle, microneedles lengths 0.15 mm, 0.25 0.5 1 mm cycles 3,...
High-performance vertical field-effect transistors are developed, which based on graphene electrodes doped using the underside doping method. The method enables effective tuning of work function while maintaining surface properties pristine graphene. As a service to our authors and readers, this journal provides supporting information supplied by authors. Such materials peer reviewed may be re-organized for online delivery, but not copy-edited or typeset. Technical support issues arising...
BackgroundAsivatrep is a potent and selective antagonist of transient receptor potential vanilloid subfamily V member 1 (TRPV1), which plays an important role in itch inflammation atopic dermatitis (AD).ObjectiveThis current study aimed to evaluate the efficacy safety asivatrep cream patients with AD.MethodsFor this phase 3 double-blind, vehicle-controlled study, aged ≥12 years mild moderate AD were enrolled randomly assigned 2:1 1.0% or vehicle group for 8 weeks twice-daily application (n =...
Low voltage high mobility n-type thin film transistors (TFTs) based on sol-gel processed zinc oxide (ZnO) were fabricated using a capacitance ion gel gate dielectric. The gated solution-processed ZnO TFTs found to exhibit excellent electrical properties. TFT carrier mobilities 13 cm2/V s, ON/OFF current ratios 105, regardless of the sintering temperature used for preparation films. Ion are successfully demonstrated plastic substrates large area flexible electronics.
Skin laxity is a common complaint of patients who request skin rejuvenation. Radiofrequency and infrared light are widely used for nonablative treatment laxity. Intense focused ultrasound (IFUS) has been investigated as tool the solid benign malignant tumors many decades but only now beginning to emerge potential noninvasive alternative conventional therapy.To evaluate efficacy IFUS face neck laxity.Twelve female volunteers were enrolled in study, 10 ultimately evaluated. The device under...
Background. Extensively drug‐resistant (XDR) tuberculosis (TB) is a major public health threat in South Korea. Methods. We analyzed baseline epidemiological data for 250 patients enrolled an ongoing prospective observational study of TB at large tertiary referral hospital Results. Twenty‐six subjects with XDR were identified; all who had previously received therapy. Cumulative previous treatment duration (range, 18–34 months; odds ratio [OR], 5.6; 95% confidence interval [CI], 1.0–59),...
Melasma is a common pigmentary disorder in Asians. Although the pathogenesis of melasma not yet fully understood, there are several hypotheses supporting angiogenetic factors related to some types melasma.To test efficacy copper bromide laser treatment Korean women with melasma.Clinical parameters included physician and patient assessment Area Severity Index score. The intensity pigmentation erythema was measured using chromometer. To evaluate histopathologic changes, punch biopsies from...
Striae distensae are dermal scars characterized by flattening and atrophy of the epidermis. Although many treatment modalities have been attempted with variable results, there is no criterion standard modality for striae distensae.To evaluate effectiveness safety a disk microneedle therapy system (DTS) in distensae.Sixteen Korean volunteers alba or rubra were enrolled. Patients received three treatments using DTS at 4-week intervals. Clinical response to was assessed comparing pre-...
Abstract Background Different types of laser have recently been reported as effective tools treatment in striae distensae. Although fractional photothermolysis is for distensae, post‐inflammatory hyperpigmentation a major concern and common complication. There are no reports the effects using an intradermal radiofrequency (RF) device Autologous platelet‐rich plasma (PRP) known its wound‐healing effects. Methods Nineteen Asian female patients with distensae were enrolled this study. Three...
Atopic dermatitis (AD) is a common inflammatory skin disease characterized by complex, heterogeneous pathogenesis including barrier dysfunction, immunology, and pruritus. Although epidermal growth factor (EGF) essential for epithelial homeostasis wound healing, the effect of EGF on AD remains to be explored. To develop new therapy AD, anti-AD potential was investigated inducing AD-like lesions in NC/Nga mice using 2,4-dinitrochlorobenzene (DNCB). administrated evaluate its therapeutic...