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Foldable three dimensional neural electrode arrays for simultaneous brain interfacing of cortical surface and intracortical multilayers

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npj Flexible Electronics 2022年第1期6卷 840-853页

作者： Ju Young Lee Sang Hoon Park Yujin Kim Young Uk Cho Jaejin Park Jung-Hoon Hong Kyubeen Kim Jongwoon Shin jeong Eun Ju In Sik Min Mingyu Sang Hyogeun Shin ui-jin jeong Yuyan Gao Bowen Li Aizhan Zhumbayeva Kyung Yeun Kim Eun-Bin Hong Min-Ho Nam Hojeong Jeon Youngmee Jung Huanyu Cheng Il-Joo Cho Ki Jun Yu School of Electrical and Electronic Engineering Yonsei University50 Yonsei-roSeodaemunguSeoul 03722Republic of Korea Department of Biomedical Sciences College of MedicineKorea UniversitySeoul 02841Republic of Korea Brain Science Institute Korea Institute of Science and Technology(KIST)Seoul 02792Republic of Korea School of Electrical Engineering Korea UniversitySeoul 02841Republic of Korea Department of Engineering Science and Mechanics The Pennsylvania State UniversityUniversity ParkPA 16802USA Center for Biomaterials Biomedical Research InstituteKorea Institute of Science and Technology(KIST)Seoul 02792Republic of Korea Biomaterials Research Center Biomedical Research DivisionKorea Institute of Science and Technology(KIST)Seoul 02792Republic of Korea Department of Mechanical Engineering Seoul National UniversitySeoul 08826Republic of Korea Department of Biotechnology College of Life Science and BiotechnologyYonsei UniversitySeoul 03722Republic of Korea Department of KHU-KIST Convergence Science and Technology Kyung Hee UniversitySeoul 02447Republic of Korea KU-KIST Graduate School of Converging Science and Technology Korea UniversitySeoul 02841Republic of Korea School of Electrical and Electronic Engineering YU-KIST InstituteYonsei UniversitySeoul 03722Republic of Korea Department of Materials Science and Engineering The Pennsylvania State UniversityUniversity ParkPA 16802USA Materials Research Institute The Pennsylvania State UniversityUniversity ParkPA 16802USA Department of Anatomy College of MedicineKorea UniversitySeoul 02841Republic of Korea Department of Electrical and Electronic Engineering YU-Korea Institute of Science and Technology(KIST)InstituteYonsei University50Yonsei-roSeodaemun-guSeoul 03722Korea

Challenges in the understanding of three-dimensional(3D)brain networks by simultaneously recording both surface and intracortical areas of brain signals remain due to the difficulties of constructing mechanical design and spatial limitations of the implanted ***,we present a foldable and flexible 3D neural prosthetic that facilitates the 3D mapping of complex neural circuits with high spatiotemporal dynamics from the intracortical to cortical *** device is the tool to map the 3D neural transmission through sophisticatedly designed four flexible penetrating shanks and surface electrode arrays in one integrated *** demonstrate the potential possibilities of identifying correlations of neural activities from the intracortical area to cortical regions through continuous monitoring of electrophysiological *** also exploited the structural properties of the device to record synchronized signals of single spikes evoked by unidirectional total whisker *** platform offers opportunities to clarify unpredictable 3D neural pathways and provides a next-generation neural interface.

关键词： neural electrode simultaneous

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Compensating the impurities on the Cu surface by MOFs for enhanced hydrocarbon production in the electrochemical reduction of carbon dioxide

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Journal of Energy Chemistry 2022年第3期31卷 68-73,I0003页

作者： Shin Joon Kang Jong Ho Won Hansaem Choi Woohyeong Sim Mun Kyoung Kim Siraj Sultan Youngkook Kwon Hyung Mo jeong School of Mechanical Engineering and Department of Smart Fab.Technology Sungkyunkwan University2066 Seobu-roJangan-guSuwon 16419Republic of Korea Department of Chemistry Kookmin University77 Jeongneung-roSeongbuk-guSeoul 02707Republic of Korea School of Energy and Chemical Engineering Emergent Hydrogen Technology R&D CenterUlsan National Institute of Science and Technology50 UNIST-gilUlsan 44919Republic of Korea

Copper(Cu)provides a cost-effective means of producing value-added fuels through the electrochemical reduction of carbon dioxide(CO_(2)RR).However,we observed the production of hydrocarbons via CO_(2)RR on commercial Cu films is less efficient because of the surface impurities,i.e.,*** monoxide(CO),a reaction intermediate of CO_(2)RR to hydrocarbons,binds strongly to the Fe sites and interrupts the production of hydrocarbons,resulting in an active hydrogen evolution reaction(HER).Herein,we report a method of blocking the effect of Fe impurities on the Cu surface through the preferential growth of nano-sized metal-organic frameworks(MOFs)on Fe *** zirconium(Zr)-based MOFs(uiO-66)forms a compensating layer on Cu film via the terephthalic acid(TPA)-Fe coordination bond,the ui O-66 coated Cu film(uiO-66@Cu)presents significantly improved hydrocarbon Faradaic efficiency(FE)of 37.59%compared to 14.68%FE on commercial Cu film(99.9%purity)by suppressing *** to X-ray photoelectron spectroscopy(XPS)analysis,the uiO-66 ligand binds to entire metallic Fe site on the Cu surface,while metallic Cu is ***,uiO-66@Cu provides active sites of Cu for CO_(2)RR and leads to highly efficient and selective production of hydrocarbons.

关键词： Impurity on Cu film Zr-based MOFs Electrocatalysts CO_(2)reduction Hydrocarbon

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A Combined Approach for Urban Green Space System——Traditional and Digital Methods

A Combined Approach for Urban Green Space System——Traditio...

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第8届中日韩国际风景园林学术研讨会

作者： Kyoo-Seock LEE Seung-Mahn AHN Dong-Hoon SHIN Byung-Sun KAHNG Seung-Nyung HUR jin-Min SHIN Sang-hwa LEE Mi-jeong LEE Yun-ui JI Hyo-jeong KIM Ho-Kyung SONG Ki-Won KWON Byung-Key SUH Dept. of Landscape Arch. Sungkyunkwan University Dept. of Landscape Arch. Sungkyunkwan University Dept. of Landscape Arch. Sungkyunkwan University Dept. of Landscape Arch. Sungkyunkwan University Dept. of Landscape Arch. Sungkyunkwan University Dept. of Landscape Arch. Sungkyunkwan University Dept. of Forest Resources Chungnam University Dept. of Forest Resources Chungnam University Dept. of Forest Resources Chungnam University Dept. of Forest Resources Chungnam University Dept. of Forest Resources Chungnam University Dept. of Forest Resources Chungnam University School of Horticulture ＆ Landscape Arch. Paichai University

＜正＞This study aims to establish the urban green network using RS, GIS and GPS, together with the traditional vegetation survey and ultimately to contribute to the effective conservation of urban green spaces for ur... 详细信息

关键词： Green Network Remote Sensing GIS GPS Vegetation Analysis

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Effect of Chelated Vanadium Spray on Concentration of Vanadium and Organic Compounds in Tea Shoots

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茶叶 2013年第4期39卷 220-222页

作者： In-Kwan Song Tethvoleak Srey Kyunguk Lee Eun-ui Oh Jian-Liang Lu Seung-Woon Song Bong-Chan Kim Young-Jae Lee Kwan-jeong Song Jeju Special Self-Governing Province Agricultural Research and Extension Services Faculty of Bioscience and Industry Jeju National University Department of Tea Sciences Zhejiang University College of Veterinary Medicine Jeju National University

The study aimed to develop vanadium tea products and evaluated the potential of chelated vanadium(V)absorption by tea shoots and effect of vanadium accumulation on tea quality during the first crop *** V application with three times foliar sprays at 5 days intervals starting from 15 days before plucking showed a significant increase in V content of new young shoots,which was much effective at higher ***,one or two times sprays had no increase in V content regardless of spray concentration compared to *** V accumulation in the treated at 3 to 9 times higher that of than the non-treated plants,there were no significant changes in contents of total amino acids,theanine,caffeine,total polyphenols,crude fiber,and cathechins between the treated and the non-treated.

关键词：钒(V) 茶产品喷雾剂螯合叶芽有机物品质影响叶面喷洒

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