• 제목/요약/키워드: MOF

검색결과 217건 처리시간 0.021초

MOF-based Sensing Materials for Non-enzymatic Glucose Sensors

  • Jingjing Liu;Xiaoting Zha;Yajie Yang
    • Journal of Electrochemical Science and Technology
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    • 제15권1호
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    • pp.32-50
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    • 2024
  • Diabetes mellitus is one of the common chronic diseases, seriously threating to human health. The continuous monitoring of blood glucose concentration can effectively prevent diabetic diseases. The sensing performance of glucose non-enzymatic sensors is mainly determined by working electrode materials. Metal-organic frameworks (MOFs) are recognized as promising candidate for glucose sensor application, due to its large surface areas, ordered porous structure and nearly infinite designability. In this review, the sensing performance, research progress and future challenge of non-enzymatic glucose sensors based on MOF-based materials in recent years are presented. We hope that this review would provide valuable technology guidance for high performance non-enzymatic glucose sensors based on MOFs.

이산화탄소 포집 성능 향상을 위한 MIL-53 금속-유기 골격체 코팅의 최적화 (Optimization of MIL-53 Metal-organic Framework Coatings for Enhanced Durability in Carbon Dioxide Capture)

  • 김대현;이성준;안동규;김창래
    • 소성∙가공
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    • 제33권4호
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    • pp.261-269
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    • 2024
  • This study aimed to optimize the MIL-53 metal-organic framework coatings for enhanced durability in carbon dioxide capture applications. We synthesized MIL-53 powders using a hydrothermal method and deposited them on stainless-steel substrates by spin coating at various speeds, ranging from 300 to 2,000 rpm. The microstructure, surface properties, and tribological characteristics of the coatings were analyzed systematically. The results indicated that the spin speed significantly impacted the coating uniformity and defect formation. Coatings prepared at moderate speeds of 500 to 1,000 rpm exhibited optimal thickness and density, resulting in superior wear resistance. The tribological tests revealed that the coatings prepared at 700 to 1000 rpm had the lowest wear rates. These findings offer valuable insights for the development of durable MOF-based coatings for carbon dioxide capture and other applications requiring long-term stability under mechanical stress.

수변전설비의 안전관리

  • 한찬호
    • 전기기술인
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    • 통권299호
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    • pp.23-26
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    • 2007
  • 과거의 관리기법인 사후보전을 초월하여 예방보전의 요망사항이 점차 높아지고 있다. 따라서 무관심하게 설치된 수변전설비의 중요한 설비의 하나인 피뢰기, MOF, ASS 등으로 인한 사고사례와 대책을 제시하여 안전관리 업무에 기여 하고자 한다.

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스폐셜 인터뷰 Ⅰ- 프랑스 대표 M.O.F 스테판 글라시에

  • 정솔이
    • 베이커리
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    • 7호통권456호
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    • pp.122-123
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    • 2006
  • MOF 스테판 글라시에(Stéphane Glacier) 쉐프가 (주)제원인터내쇼날이 주최한 브와롱-바리칼리바우트 세미나를 위해 한국을 찾았다. '쉐프' 특유의 고집과 집념, 제과에 대한 열정으로 프랑스는 물론이고 세계 각지에서 제과부문 강사와 컨설턴트, 데몬스트레이터로서 종횡무진 활약하고 있는 스테판 글라시에 쉐프를 만나봤다.

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금속-유기 골격체(Metal-organic Frameworks)를 활용한 물로부터의 유해 유기물의 흡착 제거 (Adsorptive Removal of Hazardous Organics from Water with Metal-organic Frameworks)

  • 서필원;송지윤;정성화
    • 공업화학
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    • 제27권4호
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    • pp.358-365
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    • 2016
  • 수자원의 효과적 활용을 위해 유해물질을 제거하는 기술이 중요하며 흡착이 하나의 경쟁력 있는 기술로 검토/개발되고 있다. 흡착공정이 경쟁력을 가지기 위해서는 뛰어난 성능의 흡착제 개발이 중요하다. 유기물과 무기물 모두를 함유한 금속-유기 골격체(metal-organic frameworks, MOFs)는 큰 표면적, 세공부피, 잘 정의된 세공 구조 및 용이한 기능화 등으로 인해 다양한 흡착에 활용되고 있다. 본 고에서는 MOFs를 이용하여 물로부터 유해한 유기물을 흡착제거하는 기술을 요약, 정리하였다. 단순히 흡착량이나 속도를 증가하는 연구 대신에 흡착질과 흡착제 간의 상호작용의 메커니즘을 요약하였고 이를 위해 MOFs를 수정/기능화한 연구를 정리하였다. 이러한 요약으로부터 독자들은 유해물질의 흡착제거를 위한 흡착제의 필요 물성 및 수정에 대해 이해를 하게 될 것이며 흡착 외에 유기물들의 저장 및 전달에 대한 새로운 아이디어를 얻을 수 있을 것으로 기대된다.

RADIATION DAMAGE IN THE HUMAN BODY ACUTE RADIATION SYNDROME AND MULTIPLE ORGAN FAILURE

  • AKASHI, MAKOTO;TAMURA, TAIJI;TOMINAGA, TAKAKO;ABE, KENICHI;HACHIYA, MISAO;NAKAYAMA, FUMIAKI
    • Nuclear Engineering and Technology
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    • 제38권3호
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    • pp.231-238
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    • 2006
  • Whole-body exposure to high-dose radiation causes injury involving multiple organs that depends on their sensitivity to radiation. This acute radiation syndrome (ARS) is caused by a brief exposure of a major part of the body to radiation at a relatively high dose rate. ARS is characterized by an initial prodromal stage, a latent symptom-free period, a critical or manifestation phase that usually takes one of four forms (three forms): hematologic, gastrointestinal, or cardiovascular and neurological (neurovascular), depending upon the exposure dose, and a recovery phase or death. One of the most important factors in treating victims exposed to radiation is the estimation of the exposure dose. When high-dose exposure is considered, initial dose estimation must be performed in order to make strategy decisions for treatment as soon as possible. Dose estimation can be based on onset and severity of prodromal symptoms, decline in absolute lymphocyte count post exposure, and chromosomal analysis of peripheral blood lymphocytes. Moreover, dose assessment on the basis of calculation from reconstruction of the radiation event may be required. Experience of a criticality accident occurring in 1999 at Tokai-mura, Japan, showed that ARS led to multiple organ failure (MOF). This article will review ARS and discuss the possible mechanisms of MOF developing from ARS.

CO2 분리를 위한 이온성 액체 기반 혼합 매트릭스 멤브레인의 최근 발전 (Recent Advances on Ionic Liquid based Mixed Matrix Membrane for CO2 Separation)

  • 황채림;라즈쿠마 파텔
    • 멤브레인
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    • 제31권1호
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    • pp.1-15
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    • 2021
  • 이온성 액체 기반 혼합 멤브레인(MMM)은 이산화탄소 분리 매체로써 다양한 종류의 이온성 액체와 무기성 필러 폴리머에 의해 만들어진다. 이온성 액체와 무기성 필러의 강한 상호작용은 이산화탄소의 금속 유기체의 프레임워크 내 친화력, 선택성, 흡착성을 높여 분리성능을 향상시킨다. 또, 이온성 액체에 의해 혼합 매트릭스 멤브레인의 구조적 특성이 조절되어 이산화탄소 투과성과 선택성을 향상시킨다. 이 리뷰에서는 이산화탄소 분리를 위한 고분자 막에서의 이온성 액체(IL)와 금속 유기체 프레임워크(MOF)의 다양한 조합에 대한 연구가 논의될 것이다.

Bacillus amyloliquefaciens HSOB-7와 Saccharomyces cerevisiae HSOB-8 함유 유기질비료 처리 시 상추의 생육 (Growth Response of Lettuce after Application of Mixed Organic Fertilizer Containing Bacillus amyloliquefaciens HSOB-7 and Saccharomyces cerevisiae HSOB-8)

  • 김영선;이종진;조성현
    • 한국환경농학회지
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    • 제42권4호
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    • pp.338-345
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    • 2023
  • Bacillus spp. and Saccharomyces spp. are effective microorganisms that are applied as microbial fertilizers for crops in Korea. Mixed organic fertilizer (MOF) has been used in the Korean organic agriculture to supply nutrients to crops. This study was conducted to investigate the effects of MOF containing Bacillus amyloliquefaciens HSOB-7 and Saccharomyces cerevisiae HSOB-8 (MOFBS) on the soil chemical properties and growth of lettuce (Lactuca sativa). Growth factors of lettuce were higher after applying different formulation types of MOFBS, such as powder and pellet, than those of NF, and not significantly different than those of control (microbe-free MOF). Compared with the control, application of recommended amount of MOFBS (MOFBS 250 kg/10a, MOFBS treatment) and double the recommended amount (MOFBS 500 kg/10a, 2MOFBS treatment) did not significantly change the growth factors of lettuce. After the application of two formulation types or two different amounts of MOFBS, soil chemical properties such as electrical conductivity, organic matter (OM), exchangeable Ca, and cation exchangeable cation (CEC) increased. These results indicated that although the application of MOFBS improved soil fertility including OM and CEC, it did not significantly affect lettuce growth.