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연구자

1-9 out of 1472 results

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연구실

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저널논문

1-3 out of 128846 results

Control of Electrolyte Desolvation Energy Suppressing the Cointercalation Mechanism and Organic Electrode Dissolution ACS NANO, v.19, no.1, pp.1371 - 1382, 2025-12

Keywords organic electrode materials electrolytes cointercalation dissolution mechanism

Control of Electrolyte Desolvation Energy Suppressing the Cointercalation Mechanism and Organic Electrode Dissolution
Lee, Ji-Hee ; Kim, Youngoh ; Lee, Hyun-Wook ; Lee, Joo-Hyun ; Lee, Sechan ; Choi, Joonmyung ; Kwak, Won-Jin

초록	Despite numerous studies aimed at solving the detrimental dissolution issue of organic electrode materials (OEMs), a fundamental understanding of their dissolution mechanism has not yet been established. Herein, we systematically investigate how changes in electrolyte composition affect the ion-solvent interactions propagating to OEM dissolution by changing the cation. The cyclability of OEM is significantly different by alkali cations, where the OEM with K is stable even after 300 cycles and that with Li is drastically decayed within 100 cycles. This different behavior is owing to the dissolution of OEM into electrolytes, and the dissolution of OEMs was found to be highly dependent on the cation-solvent interaction. Strong cation-solvent interactions induce cointercalation into the layered structure of the electrode and cause electrode deformation. This behavior allows OEMs to easily detach from their original location, consequently leading to dissolution and severe capacity decay. The cation-solvent interaction-dependent phenomenon is similar to that of OEMs with high-concentration electrolytes, in which fewer cation-solvent pairs exist. The result provides insight into proper electrolyte selection and is expected to set a constructive milestone in the utilization of organic electrodes.
서지사항	ACS NANO, v.19, no.1, pp.1371 - 1382, 2025-12
ISSN	1936-0851
주제분야	Chemistry Science & Technology - Other Topics Materials Science
저자 키워드	organic electrode materials electrolytes cointercalation dissolution mechanism
DOI	10.1021/acsnano.4c13999
자료유형	Article; Early Access
기관	UNIST

Organic Radical-Boosted Ionic Conductivity in Redox Polymer Electrolyte for Advanced Fiber-Shaped Energy Storage Devices NANO-MICRO LETTERS, v.17, no.1, 2025-12

Keywords Ionic conductivity Self-exchange reaction Fiber-shaped energy storage devices Redox polymer electrolyte Hydroxy-TEMPO

Organic Radical-Boosted Ionic Conductivity in Redox Polymer Electrolyte for Advanced Fiber-Shaped Energy Storage Devices
Kim, Jeong-Gil ; Ko, Jaehyoung ; Lim, Hyung-Kyu ; Jo, Yerin ; Yu, Hayoung ; Kim, Min Woo ; Kim, Min Ji ; Jeong, Hyeon Su ; Lee, Jinwoo ; Joo, Yongho ; Kim, Nam Dong

초록	Fiber-shaped energy storage devices (FSESDs) with exceptional flexibility for wearable power sources should be applied with solid electrolytes over liquid electrolytes due to short circuits and leakage issue during deformation. Among the solid options, polymer electrolytes are particularly preferred due to their robustness and flexibility, although their low ionic conductivity remains a significant challenge. Here, we present a redox polymer electrolyte (HT_RPE) with 4-hydroxy-2,2,6,6-tetramethylpiperidine-1-oxyl (HT) as a multi-functional additive. HT acts as a plasticizer that transforms the glassy state into the rubbery state for improved chain mobility and provides distinctive ion conduction pathway by the self-exchange reaction between radical and oxidized species. These synergetic effects lead to high ionic conductivity (73.5 mS cm-1) based on a lower activation energy of 0.13 eV than other redox additives. Moreover, HT_RPE with a pseudocapacitive characteristic by HT enables an outstanding electrochemical performance of the symmetric FSESDs using carbon-based fiber electrodes (energy density of 25.4 W h kg-1 at a power density of 25,000 W kg-1) without typical active materials, along with excellent stability (capacitance retention of 91.2% after 8,000 bending cycles). This work highlights a versatile HT_RPE that utilizes the unique functionality of HT for both the high ionic conductivity and improved energy storage capability, providing a promising pathway for next-generation flexible energy storage devices.
서지사항	NANO-MICRO LETTERS, v.17, no.1, 2025-12
ISSN	2311-6706
주제분야	Science & Technology - Other Topics Materials Science Physics
저자 키워드	Ionic conductivity Self-exchange reaction Fiber-shaped energy storage devices Redox polymer electrolyte Hydroxy-TEMPO
DOI	10.1007/s40820-025-01700-9
자료유형	Article
기관	KAIST

Update on Strategies to Reduce Early Brain Injury after Subarachnoid Hemorrhage Current Neurology and Neuroscience Reports, v.25, no.1, 2025-12

Keywords Pathophysiology Biomarkers Translational research Early brain injury Subarachnoid hemorrhage

Update on Strategies to Reduce Early Brain Injury after Subarachnoid Hemorrhage
Yang, Bosco Seong Kyu ; Gusdon, Aaron M. ; Ren, Xuefang Sophie ; Jeong, Han-gil ; Lee, Chang-Hun ; Blackburn, Spiros ; Choi, Huimahn Alex

초록	Purpose of Review: Early brain injury (EBI) after aneurysmal subarachnoid hemorrhage (SAH) is the most influential clinical determinant of outcomes. Despite significant advances in understanding of the pathophysiology of EBI, currently no treatments to target EBI have been developed. This review summarizes recent advances in EBI research over the past five years with a focus on potential therapeutic targets. Recent Findings: Mechanism-specific translational studies are converging on several pathophysiologic pathways: improved antioxidant delivery and the Sirt1/Nrf2 pathway for reactive oxygen species; NLRP3 inflammasome and microglial polarization for inflammation; and the PI3K/Akt pathway for apoptosis. Recently identified mechanistic components, such as microcirculatory failure and ferroptosis, need particular attention. Clinical studies developing radiographic markers and mechanism-specific, biofluid markers are attempting to bridge the translational therapeutic gap. Summary: There has been an exponential growth in EBI research. Further clinical studies which address specific pathophysiology mechanisms need to be performed to identify novel therapeutic approaches. © The Author(s), under exclusive licence to Springer Science+Business Media, LLC, part of Springer Nature 2024.
서지사항	Current Neurology and Neuroscience Reports, v.25, no.1, 2025-12
ISSN	1528-4042
주제분야	Neurosciences & Neurology
저자 키워드	Pathophysiology Biomarkers Translational research Early brain injury Subarachnoid hemorrhage
DOI	10.1007/s11910-024-01396-1
자료유형	Review
기관	DGIST

연구과제

1-3 out of 31418 results

(통합EZ)고친화도 메탄산화균의 생태생리학적 이해 증진 및 온실가스 배출저감 환경마이크로바이옴 기술 개발(2024년도) 과학기술정보통신부, 이공분야기초연구사업, 장진, 2024-05 ~ 2024-06

종양 발생 단계에서 동반되는 DNA 메틸레이션 변화 분석(2024년도) 과학기술정보통신부, KAIST기본사업1(정부), 주영석, 2024-05 ~ 2024-06

(통합EZ)통합적 이산화탄소 포집 및 전환 활용을 위한 혁신적 원천 소재 및 촉매 개발(2024년도) 과학기술정보통신부, 원천기술개발사업, 홍순혁, 2024-04 ~ 2024-06

특허

1-3 out of 23793 results

무인 항공기 감지를 위한 주파수 변조 연속파 레이더 시스템 망 FREQUENCY MODULATED CONTINUOUS WAVE CHAIN RADAR SYSTEM FOR DETECTING UNMANNED AERIAL VEHICLE, Registration Number: 10-2015-0078711, Registration Date: 2027-05-26, 대한민국

광소자 및 그의 제조방법 Optical device and method for manufacturing the same, Registration Number: 10-2793613-0000, Registration Date: 2025-04-04, 대한민국

광소자 및 그의 제조방법

요약정보	본 발명은 광소자에 관한 것으로, 보다 상세하게는, 제1 서브칩, 및 상기 제1 서브칩 상에 플립된 제2 서브칩을 포함한다. 상기 제1 서브칩은, 제1 기판, 상기 제1 기판의 제1 면 상의 제1 하부 클래드 패턴, 및 상기 제1 하부 클래드 패턴 상의 제1 코어층을 포함하고, 상기 제2 서브칩은, 제2 기판, 상기 제2 기판의 제2 면 상의 제2 하부 클래드 패턴, 및 상기 제2 하부 클래드 패턴 상의 제2 코어층을 포함하며, 상기 제1 기판의 상기 제1 면은 상기 제2 기판의 상기 제2 면을 마주보고, 상기 제1 하부 클래드 패턴은, 상기 제1 면에 평행한 제1 상면, 및 상기 제1 면에 대해 경사진 제1 측벽을 갖고, 상기 제1 코어층은, 상기 제1 상면 상의 제1 코어부 및 상기 제1 측벽 상의 제1 사이드부를 포함한다.	크게보기
타언어명	Optical device and method for manufacturing the same
출원번호	10-2019-0040147
출원일자	2019-04-05
등록번호	10-2793613-0000
등록일자	2025-04-04
발명자	이한석, 김대곤, 한상윤, 황준혁
출원/등록국가	대한민국
기관	KAIST

이산화탄소 함유 가스로부터의 보론이 함유된 다공성 탄소소재를 이용한 과산화수소의 전기화학적 제조방법 Electrochemical Synthesis of Hydrogen Peroxide Using Porous Carbon Materials Containing Boron from Carbon Oxide-Containing Gas, Registration Number: 10-2793824-0000, Registration Date: 2025-04-04, 대한민국

이산화탄소 함유 가스로부터의 보론이 함유된 다공성 탄소소재를 이용한 과산화수소의 전기화학적 제조방법

요약정보	본 발명은 고온에서 환원제 또는 환원제와 나노 템플릿과의 혼합물을 이산화탄소를 함유하고 있는 배기가스 또는 생산공정 폐가스와 반응시켜 보론이 도핑된 계층적 다공성 탄소소재를 제조하고 이를 과산화수소의 전기화학적 생성을 위한 촉매로 활용하는 방법에 관한 것으로, 본 발명에 의해 제조된 붕소가 포함된 계층적 다공성 탄소소재는 비교적 온건한 조건(상압)에서 이산화탄소로부터 합성되어 친환경적일 뿐만 아니라, 마이크로 기공과 메조 기공이 계층적으로 존재하고 도핑된 이종원소인 붕소로 인해 전기화학적 과산화수소의 생성을 위한 산소 환원 반응의 2전자 촉매로 활용될 수 있다.	크게보기
타언어명	Electrochemical Synthesis of Hydrogen Peroxide Using Porous Carbon Materials Containing Boron from Carbon Oxide-Containing Gas
출원번호	10-2022-0133934
출원일자	2022-10-18
등록번호	10-2793824-0000
등록일자	2025-04-04
발명자	이재우, 변아영, 윤원찬, 김종민, 최재원, 황창규, 백새얀
출원/등록국가	대한민국
기관	KAIST

학술활동

1-3 out of 86483 results

Development of chemical probes for capturing protein arginine kinases 6th Asian Chemical Biology Conference 2023, 대한민국, 2230-82-01 ~ 2023-08-23

Development of chemical probes for capturing protein arginine kinases
Lee, Shin Hyeon ; Kee, Jung-Min

초록	Protein kinases play a critical role in controlling numerous cellular regulation pathways and signal transduction.1 Protein arginine phosphorylation, one of the relatively acid-labile N- phosphorylations, has been identified in numerous prokaryotic and eukaryotic proteins.2 The only known protein Arg kinase is McsB in Gram-positive bacteria, which was characterized in 2009.3 McsB is a heat-stress responsive kinase and phosphorylates Arg residues in aggregated cytosolic proteins so that phosphoarginine (pArg) acts as a protein degradation tag recognized by the ClpC/ClpP protease system. Recently, bacterial-PROTAC was developed using pArg and ClpC- binding cyclic peptide to induce the degradation of the target protein.4 In contrast, no eukaryotic or mycobacterial protein Arg kinase has been identified despite the abundance of pArg sites in those organisms, hindering further studies of Arg phosphorylation. Herein, we report our progress in developing mechanism-based chemical probes to label and capture the elusive Arg kinase.
학술대회명	6th Asian Chemical Biology Conference 2023
개최국	대한민국
개최장소
개최일	2023-08-22
저자 키워드
DOI
기관	UNIST

Domain Knowledge-Informed Functional Outlier Detection for Line Quality Control Systems 한국경영과학회-대한산업공학회 2022 춘계공동학술대회, 대한민국, 2206-01 ~ 2206-04

Domain Knowledge-Informed Functional Outlier Detection for Line Quality Control Systems
Mun, Jonghwan ; Yoon, Kwonin ; Kim, Gyeongjun ; Yoo, Jitae ; Kim, Heesun ; Ryu, Nayi ; Kim, Sungil

초록
학술대회명	한국경영과학회-대한산업공학회 2022 춘계공동학술대회
개최국	대한민국
개최장소
개최일	2022-06-03
저자 키워드
DOI
기관	UNIST

광 네트워크를 통한 실시간 미디어 전송을 위한 멀티캐스트 라우팅 기법에 관한 연구 SWCC2008, 대한민국, ? ~ ?

연구장비

1-3 out of 3542 results