A5101421067- Nanoparticles: synthesis and applications
- Carbon Nanotubes in Composites
- Graphene research and applications
- Advancements in Battery Materials
- Hydrogen embrittlement and corrosion behaviors in metals
- Nanoparticle-Based Drug Delivery
- Graphene and Nanomaterials Applications
- Nanoplatforms for cancer theranostics
- Non-Destructive Testing Techniques
- Gold and Silver Nanoparticles Synthesis and Applications
- Diamond and Carbon-based Materials Research
- Supercapacitor Materials and Fabrication
- Photoacoustic and Ultrasonic Imaging
- Semiconductor materials and devices
- Advanced Battery Materials and Technologies
- Perovskite Materials and Applications
- Muscle activation and electromyography studies
- Recreation, Leisure, Wilderness Management
- Nanopore and Nanochannel Transport Studies
- Oral microbiology and periodontitis research
- Hand Gesture Recognition Systems
- Extracellular vesicles in disease
- Advanced Numerical Methods in Computational Mathematics
- Therapeutic Uses of Natural Elements
- Lipoproteins and Cardiovascular Health
Hanyang University
2022-2023
Humboldt-Universität zu Berlin
2023
Ulsan National Institute of Science and Technology
2022
Gyeongsang National University
2020
Catholic University of Daegu
2020
Korea Institute of Science and Technology
2017
Gwangju Institute of Science and Technology
2010-2016
Houston Methodist
2015
Ajou University
2014
University of Münster
2012-2013
Most nanoparticles for biomedical applications originate from the self-assembling of individual constituents through molecular interactions and possess limited geometry control stability. Here, 1000 × 400 nm discoidal polymeric nanoconstructs (DPNs) are demonstrated by mixing hydrophobic hydrophilic polymers with lipid chains curing resulting paste directly within silicon templates. By changing composition, soft- rigid-DPNs (s- r-DPNs) synthesized exhibiting same geometry, a moderately...
Abstract Owing to the strong absorption of water in near-infrared (NIR) region near 1.0 μm, this wavelength is considered unsuitable as an imaging and analytical signal biological environments. However, μm NIR can be converted into heat used a local water-molecular heating strategy for photothermal therapy tissues. Herein, we describe Nd-Yb co-doped nanomaterial (water-heating nanoparticles (NPs)) emissive NPs target band water. Furthermore, introducing Tm ions water-heating improve...
Halloysite nanotube (HNT)-based supramolecular complexes are synthesized and evaluated with respect to their cytotoxicity effects on cellular structures. As HNTs water-insoluble, DNA is applied for wrapping the surface of enhance water-dispersibility. To investigate potential DNA-wrapped (HD) as a promising drug delivery carrier, doxorubicin (DOX) introduced model anticancer agent loaded onto HD. The DOX-loaded, (HDD) show sustained DOX release over two weeks without initial burst indicating...
The incorporation of nanopores into graphene nanostructures has been demonstrated as an efficient tool in tuning their band gaps and electronic structures. However, precisely embedding the uniform nanoribbons (GNRs) at atomic level remains underdeveloped especially for in-solution synthesis due to lack synthetic strategies. Herein we report first case solution-synthesized porous GNR (pGNR) with a fully conjugated backbone via Scholl reaction tailor-made polyphenylene precursor (P1) bearing...
Abstract The extensive phenotypic and functional heterogeneity of cancer cells plays an important role in tumor progression therapeutic resistance. Characterizing this identifying invasive phenotype may provide possibility to improve chemotherapy treatment. By mimicking cell perfusion through circulatory system metastasis, we develop a unique microfluidic cytometry (MC) platform separate at high throughput further derive physical parameter ‘transportability’ characterize the ability pass...
Background: Topical injection of simvastatin in methylcellulose gel was shown to stimulate bone growth and inflammation over mouse calvaria rat mandible models. The purpose these pilot studies evaluate the potential locally injected human‐sized periodontal defects. Methods: Chronic defects were created bilaterally seven 1‐year‐old beagle dogs: 3‐walled intrabony distal mandibular second premolar mesial fourth Class II furcation at buccal first molars. edentulous space canine left...
Abstract The particle size and surface properties of gold nanoparticles are critical factors for the interactions between cells. To produce noncytotoxic nanoparticles, a straightforward method synthesis designed involving reduction stabilization by protein such as lysozyme in conjunction with microwave irradiation. cooperative combination high affinity metal ions irradiation allowed to form biocompatible an aqueous system. In addition, cell toxicity cellular uptake pathways synthesized...
Abstract Silver nanoparticles have attracted great attention in the biomedical research field, especially cancer theranostics. In this study, we developed a synthesis method for silver solid state using high‐speed vibration milling, which biocompatible polymers such as poly(vinylpyrrolidone), poly(ethylene glycol) and chitosan were used reduction of salt. The size‐tunable was performed at room temperature no surfactants to direct anisotropic growth required. formation studied UV ‐visible...
이 연구는 Beard와 Ragheb[9]에 의해 개발되고 국내에서는 이종길[7]이 사용한 여가만족척도의 번안적절성에 그에 따른 타당도를 검증하고 적용성을 검토하기 위해 수행되었다. 연구를 먼저 문항과 각 요인의 조작적 정의를 번안 및 역번안을 수행하고 여가학 전문가들이 내용을 검토하였다. 타당도 검증을 설문조사하여 총 515명(대학생 290명, 일반인 225명)의 자료를 분석에 이용하였다. 수집된 자료는 SPSS 14.0과 AMOS 5.0 프로그램을 이용하여 문항분석, 상관분석, 탐색적 요인분석, 신뢰도분석, 다중회귀분석, 그리고 확인적 요인분석을 수행하여 신뢰도와 검증하였다. 연구결과 기존에 국내에서 사용되던 명칭(심리적, 교육적, 사회적, 신체적, 심미적, 긴장이완)과 문항을 수정하고 제시하였다. 또한 자료분석 결과 6개요인, 24개 문항으로 구성된 타당도는 매우 높은 수준으로 나타났다. 여가만족과 삶의 질과의 관계를 분석한 심리적요인과 긴장이완요인에서 유의한 영향을...
In this study, NiS/graphene nanocomposites were synthesized by simple heat treatment method of three graphene materials (graphene oxide (GO), reduced (rGO) and nitrogen-doped (N-rGO)) NiS precursor. The morphology crystal structure characterized using field emission scanning electron microscope (FE-SEM), X-ray diffraction (XRD), photoelectron spectroscopy (XPS) Raman spectroscopy. Electrochemical properties also investigated. homogeneously wrapped have been successfully manufactured. Among...
The leakage and volatilization of liquid electrolytes limit the commercialization dye-sensitized solar cells (DSCs). As solid-state (ss) hole-transporting materials, free from volatilization, biscarbazole-based polymers with different molecular weights (PBCzA-H (21,200 g/mol) PBCzA-L (2450 g/mol)) were applied in combination additives to produce ssDSCs. An ssDSC PBCzA-H showed a better short-circuit current (Jsc), open-circuit voltage (Voc), fill factor (FF) than device PBCzA-L, resulting...
Abstract The cytotoxicity and cellular uptake of carbon nanotubes (CNTs) has recently attracted considerable interest because the issue biosphere‐nanomaterial interactions. biocompatibility CNTs is determined by metal impurities in CNTs, size CNT dispersion states; particular, type surface modifications on affects how they interact with cells determines their uptake. In this study, biocompatible single‐walled (SWNTs) wrapped a water‐soluble copolymer, poly[2‐(dimethylamino)ethyl...
The methods of arrangement combined intravenous parallel infusions using anti-reflux valve (ARV), with and without anti-syphon (ASV) that could decrease occlusion alarm delay were investigated.Occlusion challenge tests mainly performed as bench experiments four kinds multiple (10 ml/h 50 infusions), which connected at the proximal or distal portion ARV, ASV. Alarm threshold was set to 1000 mmHg. Occlusion delays compliances infusion systems compared among groups.Without ASV, 10 alone valve,...
The object of this work is to establish an electrochemical noise(EN) measurement technique combined with a direct current potential drop(DCPD) method for monitoring localized corrosion cracking nickel-based alloy, and analyze its mechanism. noises were measured under various conditions applied stress compact tension specimen in simulated primary water chemistry pressurized reactor. amplitude frequency the EN signals evaluated both time domains based on shot noise theory, then quantitatively...
To develop the next-generation energy storage systems, lithium-sulfur batteries represent an attractive option due to its high theoretical capacity, and density. In this work, MoS 2 /rGO (reduced graphene oxide) was prepared by hydrothermal synthesis sulfur added melt diffusion method. The as-prepared has strong polysulfides entrapping, conductivity, large surface area, catalytic activity, consequently resulting in enhanced rate performance cycling capability of Li-S batteries. coin cells...
To improve the electrochemical properties of Ni-rich LiNi 0.8 Co 0.15 Al 0.05 O 2 (LiNCA) cathode material, Ti doped or/and Al(OH) 3 coated were by co-precipitation-assisted solid-phase and ball milling method was employed in this work. The morphology, structure, performance materials evaluated X-ray diffraction (XRD), field emission scanning electron microscopy (FESEM) with energy dispersive spectrometer (EDS), transmission (FETEM) techniques. doping is introduced into octahedral lattice...