A5101804900- Crystallization and Solubility Studies
- X-ray Diffraction in Crystallography
- Advancements in Battery Materials
- Semiconductor materials and devices
- 3D Printing in Biomedical Research
- Electrospun Nanofibers in Biomedical Applications
- Bone Tissue Engineering Materials
- Polymer Surface Interaction Studies
- Supercapacitor Materials and Fabrication
- Advanced Battery Materials and Technologies
- Surgical Sutures and Adhesives
- Intracranial Aneurysms: Treatment and Complications
- Innovative Microfluidic and Catalytic Techniques Innovation
- Retinal and Macular Surgery
- Additive Manufacturing and 3D Printing Technologies
- Luminescence Properties of Advanced Materials
- Cell Image Analysis Techniques
- Thermal Analysis in Power Transmission
- Technology and Data Analysis
- Pigment Synthesis and Properties
- Ferroelectric and Piezoelectric Materials
- High voltage insulation and dielectric phenomena
- Neuroscience and Neural Engineering
- Diverse Approaches in Healthcare and Education Studies
- Wound Healing and Treatments
Pohang Iron and Steel (South Korea)
2023-2025
Pohang University of Science and Technology
1995-2024
Research Institute of Industrial Science and Technology
2023-2024
Kunsan National University
2019
Abstract Embolization, which is a minimally invasive endovascular treatment, safe and effective procedure for treating vascular malformations (e.g., aneurysms). Hydrogel microfibers obtained via spatiotemporally controllable in situ photocrosslinking exhibit great potential embolizing aneurysms. However, this process challenging because of the absence biocompatible morphologically stable hydrogels difficulty continuously spinning extreme environments such as those involving tortuous geometry...
Lithium-rich layered oxides (LLOs) have attracted tremendous attention as promising next generation cathode materials thanks to their superb capacity through additional anionic oxygen redox and lower cost by less use of expensive transition metals.
We tried to understand the reversible capacity of SiO during first cycle and its effect on poor initial Coulombic efficiency (ICE). Several samples that have slightly different microstructures were prepared by a solid-state reaction. They similar irreversible capacities but cycle. As result, ICEs increase as their increase. The limited in originates from degree lithiation discharge process can be caused microstructures. Given Si is embedded SiO2 matrix, microstructure induce strong...
Customizable bioadhesives for individual organ requirements, including tissue type and motion, are essential, especially given the rise in implantable medical device applications demanding adequate underwater adhesion. While synthetic widely used, their toxicity upon degradation shifts focus to biocompatible natural biomaterials. However, enhancing adhesive strengths of these biomaterials presents ongoing challenges while accommodating unique properties specific organs. To address issues,...
Scaffolds play a pivotal role in tissue engineering and serve as vital biological substitutes, providing structural support for cell adhesion subsequent development. An ideal scaffold must possess mechanical properties suitable function exhibit biodegradability. Although synthetic polymer scaffolds offer high rigidity elasticity owing to their reactive side groups, which facilitate tailored rheological properties, they may lack cues cause persistent effects during degradation. To address...
Li- and Mn-rich layered oxides (LLOs) with a Co-free composition are promising candidates for next-generation cathodes in low-cost high-energy-density lithium-ion batteries. Despite their potential, the commercialization of LLOs encounters several electrochemical challenges, such as low activity initial coulombic efficiency first activation cycle compromised retention, which primarily attributed to poor phase integrity between LiTMO2 Li2MnO3 domains. In this study, we identified that can be...
SiO is a promising anode material for practical Li-ion batteries because it can achieve much higher capacity than graphite and better retention Si. However, suffers from poor initial Coulombic efficiency (ICE). Here, we report on fundamentally different approach to increase the low ICE of while achieving high long-term cycle stability compared previous approaches such as electrochemical/chemical pre-lithiation processes. To enhance ICE, long-range/short-range orders amorphous SiO2 in are...
Abstract Simultaneously achieving high initial coulombic efficiency (ICE) with reversible capacity and excellent cycle retention is a key factor for developing next‐generation SiO anode, but it has never been achieved. Here, new potential these desired properties simultaneously by controlling of short‐range ordering amorphous 2 matrix in anode reported. The controlled unique microstructure that consists nano‐crystalline Si phase dispersed within ordered while maintaining an state the...
Over the last three decades many studies have reported investigation of redox behaviour multivalent elements (M) in glass melts by voltammetry. In these works ratio at any temperature, described as ([Mx+]/[M(x+n)+]) or concentration %[Mx+], was determined under assumption that melt equilibrated with air (PO2 = 0.21 bar). Some potentiometric determination PO2 melts, however no significant attempts been made to determine actual using a measured combined corresponding voltammogram. Herein,...
In article number 2310338, Hwa Hui Shin, Hyung Joon Cha, and co-workers develop novel customized underwater bioadhesive patches designed for specific organ requirements, which exhibit strong water-switchable adhesion controllable biodegradability medical applications.These show promising potential effective wound healing in various internal organs due to their unique properties adjustable physical characteristics.
In article number 2006759, Hyung Joon Cha, Joonwon Kim, and co-workers develop an optical-fiber-integrated microfluidic device that can continuously form hydrogel microfibers via in situ photo-crosslinking extreme endovascular environments. The are based on a double-crosslinked alginate employs the dityrosine bond. This with is attractive strategy to fill aneurysms effectively.
본 연구의 목적은 국가연구개발(R&D)사업 분야 예비타당성 조사 제도의 운영에 있어서 사회적 가치의 적용 가능성을 검토하고, 이를 바탕으로 과학기술분야에서 활용 가능한 가치 지표 사례와 방안을 정책적으로 제언하는 데에 있다. 우리나라의 과학기술은 세계적인 수준으로 고도화되고 성장하여 국가발전에 기여하고 있는 것으로 평가되고 있으나, 이러한 기술적･경제적 성장에 대한 기여와는 별개로 국민들의 삶의 질, 만족도와 행복 등에 대해서는 그 기여도가 제한적인 특히, 최근에는 지속가능한 성장과 포용 사회, 기후 위기 대응 등 노동, 건강, 환경 실생활과 관련된 문제를 해결하는 과학기술의 역할이 강조됨에 따라 우리 정부 또한 제4차 과학기술기본계획(2018-2022)에서 국민 질 개선에 기여하는 과학기술을 표방하며 R&D투자 시스템 혁신의 일환으로 과학기술R&D 제도 개선을 추진한 바 이에 연구는 최근 과학기술분야 평가와 관련하여 국가R&D 사업 예비타당성조사 내 가치가...