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便携式肠道超声检查对克罗恩病治疗的影响

Gastroenterology Report 2021年第5期9卷 418-426,I0002页

作者： Can Gonen Ali Surmelioglu Koray Kochan Serhat Ozer Ekrem Aslan Metin Tilki Department of Gastroenterology School of MedicineAcibadem Mehmet Ali Aydınlar UniversityIstanbulTurkey Department of Gastroenterology Haydarpasa Numune Training and Research HospitalIstanbulTurkey Department of General Surgery Haydarpasa Numune Training and Research HospitalIstanbulTurkey

背景:肠道超声(IUS)是评估克罗恩病的一种有效的横断面影像技术。随着技术进步,便携式超声系统的应用越来越广泛,非影像专业的临床医生使用该设备有望大大提高患者的诊治效能。本研究旨在评估胃肠科医生使用便携式超声系统进行IUS检查,... 详细信息

背景:肠道超声(IUS)是评估克罗恩病的一种有效的横断面影像技术。随着技术进步,便携式超声系统的应用越来越广泛,非影像专业的临床医生使用该设备有望大大提高患者的诊治效能。本研究旨在评估胃肠科医生使用便携式超声系统进行IUS检查,作为克罗恩病患者辅助影像学检查的诊断价值。方法:117例克罗恩病患者接受了IUS检查。记录检查前后的治疗决策。主要结局指标是评估IUS检查后治疗决策的改变。以基于患者所有相关资料评估后的多学科团队讨论所制定的治疗决策作为金标准,评估基于胃肠科医生进行IUS检查后所作出治疗决策的准确性。采用克罗恩病简单内镜评分(SES-CD)评估内镜下疾病活动度。结果:IUS检查后,47例(40.2%)患者最初的治疗决策发生了改变(P=0.001)。治疗决策的准确率由63.2%提高到90.6%(P<0.001)。IUS检查后,13例患者被评估为需要急诊外科/介入干预。肠镜(SES-CD≥3)与IUS异常发现用于治疗决策的准确率分别为94%和91%,灵敏度分别为95%和94%。结论:使用便携式超声系统进行IUS检查可显著提高临床决策的准确性。若获得进一步的数据支持,该检查模式可能会成为CD治疗决策的必需。

关键词： Crohn’s disease inflammatory bowel diseases point-of-care portable ultrasound monitoring

Foveated glasses-free 3D display with ultrawide field of view via a large-scale 2D-metagrating complex

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Light(Science & Applications) 2021年第11期10卷 2217-2225页

作者： Jianyu Hua Erkai Hua Fengbin Zhou Jiacheng Shi Chinhua Wang Huigao Duan Yueqiang Hu Wen Qiao Linsen Chen School of Optoelectronic Science and Engineering&Collaborative Innovation Center of Suzhou Nano Science and Technology Soochow University215006SuzhouChina Key Lab of Advanced Optical Manufacturing Technologies of Jiangsu Province&Key Lab of Modern Optical Technologies of Education Ministry of China Soochow University215006SuzhouChina State Key Laboratory of Advanced Design and Manufacturing for Vehicle Body College of Mechanical and Vehicle EngineeringHunan University410082ChangshaChina SVG Optronics Co.Ltd215026SuzhouChina

Glasses-free three-dimensional(3D)displays are one of the game-changing technologies that will redefine the display industry in portable electronic ***,because of the limited resolution in state-of-the-art display panels,current 3D displays suffer from a critical trade-off among the spatial resolution,angular resolution,and viewing *** by the so-called spatially variant resolution imaging found in vertebrate eyes,we propose 3D display with spatially variant information *** experiences with smooth motion parallax are maintained at the central view,while the viewing angle is enlarged at the periphery *** is enabled by a large-scale 2D-metagrating complex to manipulate dot/linear/rectangular hybrid shaped ***,a video rate full-color 3D display with an unprecedented 160°horizontal viewing angle is *** thin and light form factors,the proposed 3D system can be integrated with off-the-shelf purchased flat panels,making it promising for applications in portable electronics.

关键词： portable spatially glasses

基于摩擦伏特效应的卤化物钙钛矿用于自供能传感器

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Science Bulletin 2023年第17期68卷 1849-1852页

作者：吴颖辉黄龙彪潘曹峰 Key Laboratory of Optoelectronic Devices and Systems of Ministry of Education and Guangdong Province College of Physics and Optoelectronic EngineeringShenzhen UniversityShenzhen 518060China Beijing Key Laboratory of Micro-nano Energy and Sensor Beijing Institute of Nanoenergy and NanosystemsChinese Academy of SciencesBeijing 100083China Guangdong Provincial Key Laboratory of Durability for Ocean Civil Engineering College of Civil and Transportation EngineeringShenzhen UniversityShenzhen 518060China Shenzhen Key Laboratory for Low-carbon Construction Material and Technology College of Civil and Transportation EngineeringShenzhen UniversityShenzhen 518060China

With the rapid development of aerospace,the Internet of Things,wearable devices,and portable instruments,the application scenarios for sensors are expanding and requiring higher performance in terms of conversion efficiency,flexibility,and ***,most sensors are powered by an external power source,which hinders the construction of flexible sensors due to their rigid nature.

关键词： stability hinder portable

Heteronanostructural metal oxide-based gas microsensors

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Microsystems & Nanoengineering 2022年第4期8卷 35-56页

作者： Lin Liu Yingyi Wang Yinhang Liu Shuqi Wang Tie Li Simin Feng Sujie Qin Ting Zhang i-Lab Key Laboratory of Multifunctional Nanomaterials and Smart SystemsSuzhou Institute of Nano-Tech and Nano-Bionics(SINANO)Chinese Academy of Sciences(CAS)SuzhouJiangsuChina Department of Health and Environmental Sciences Xi’an Jiaotong-Liverpool UniversitySuzhouJiangsuChina Department of Nano Science and Nano Technology Institute University of Science and Technology of ChinaSuzhouJiangsuChina NanoX Suzhou Institute of Nano-Tech and Nano-Bionics(SINANO)Chinese Academy of Sciences(CAS)SuzhouJiangsuChina School of Nano-Tech and Nano-Bionics University of Science and Technology of ChinaHefeiAnhuiPR China Gusu Laboratory of Materials SuzhouJiangsuPR China Center for Excellence in Brain Science and Intelligence Technology Chinese Academy of SciencesShanghaiPR China

The development of high-performance,portable and miniaturized gas sensors has aroused increasing interest in the fields of environmental monitoring,security,medical diagnosis,and *** different detection tools,metal oxide semiconductor(MOS)-based chemiresistive gas sensors are the most popular choice in commercial applications and have the advantages of high stability,low cost,and high *** of the most important ways to further enhance the sensor performance is to construct MOS-based nanoscale heterojunctions(heteronanostructural MOSs)from MOS ***,the sensing mechanism of heteronanostructural MOS-based sensors is different from that of single MOS-based gas sensors in that it is fairly *** performance of the sensors is influenced by various parameters,including the physical and chemical properties of the sensing materials(e.g.,grain size,density of defects,and oxygen vacancies of materials),working temperatures,and device *** review introduces several concepts in the design of high-performance gas sensors by analyzing the sensing mechanism of heteronanostructural MOS-based *** addition,the influence of the geometric device structure determined by the interconnection between the sensing materials and the working electrodes is *** systematically investigate the sensing behavior of the sensor,the general sensing mechanism of three typical types of geometric device structures based on different heteronanostructural materials are introduced and discussed in this *** review will provide guidelines for readers studying the sensing mechanism of gas sensors and designing high-performance gas sensors in the future.

关键词： structural portable designing

Nanoscale plasma-activated aerosol generation for in situ surface pathogen disinfection

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Microsystems & Nanoengineering 2022年第2期8卷 161-173页

作者： Nicholas S.L.Chew Kiing S.Wong Wei S.Chang Chien W.Ooi Leslie Y.Yeo Ming K.Tan Mechanical Engineering Discipline School of EngineeringMonash University MalaysiaBandar SunwaySelangorMalaysia Chemical Engineering Discipline School of EngineeringMonash University MalaysiaBandar SunwaySelangorMalaysia Micro/Nanophysics Research Laboratory RMIT UniversityMelbourneVICAustralia

Plasma treatment constitutes an efficient method for chemical-free disinfection.A spray-based system for dispensing plasma-activated aerosols onto surfaces would facilitate disinfection of complex and/or hidden surfaces inaccessible to direct line-of-sight(for example,UV)*** complexity and size of current plasma generators(for example,plasma jet and cometary plasma systems)-which prohibit portable operation,together with the short plasma lifetimes,necessitate a miniaturized in situ technique in which a source can be simultaneously activated and administered on-demand onto ***,we demonstrate this possibility by combining two nanoscale technologies for plasma and aerosol generation into an integrated device that is sufficiently small and *** is generated on a carpet of zinc oxide nanorods comprising a nanoneedle ensemble,which when raised to a high electric potential,constitutes a massive point charge array with near-singular electric fields to effect atmospheric *** plasma is then used to activate water transported through an underlying capillary wick,that is subsequently aerosolized under MHz-order surface acoustic *** show that the system,besides being amenable to miniaturization and hence integration into a chipscale device,leads to a considerable improvement in plasma-activation over its macroscale cometary discharge predecessor,with up to 20%and 127%higher hydrogen peroxide and nitrite ion concentrations that are respectively generated in the plasma-activated ***,in turn,leads to a 67%reduction in the disinfection time to achieve 95%bacterial load reduction,therefore demonstrating the potential of the technology as an efficient portable platform for on-demand field-use surface disinfection.

关键词： surface portable aerosol

Engineering Liquid-Vapor Phase Transition for Refreshable Haptic Interfaces

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Research 2022年第4期2022卷 61-70页

作者： Wei Dawid Wang Zhengbing Ding Yongkyu Lee Xu Han Department of Mechanical Engineering Hanyang UniversitySeoul 04763Republic of Korea

Haptics as a communication medium has been increasingly emphasized across various *** efforts have focused on developing various haptic stimulation technologies;however,most of them suffer from critical drawbacks stemming from their bulk,complexity,large power input,or high ***,we describe a strategy to design portable and affordable refreshable haptic interfaces composed of an array of individually addressable and controllable liquid pouch motor-based haptic units embedded in either rigid or flexible substrates for different application *** pouch motor flled with low boiling fluid,under a controlled manner,expands or contracts by Joule heating or cooling,enabling the haptic pin in contact to be protruded or *** the actuation sequence of an array of haptic units enables the haptic interface to apply different stimuli to the skin to convey corresponding *** finally demonstrate the applications to portable rigid braille displays and flexible epidermal VR *** study opens the avenue to the design of ubiquitous refreshable haptic interfaces that is portable,affordable,scalable,and uninjurious.

关键词： portable Transition finally

Organic solar cells for indoor power generation

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Science China Chemistry 2020年第1期63卷 1-2页

作者： Hwa Sook Ryu Han Young Woo Department of Chemistry College of Science Korea University

During last decades,organic solar cells(OSCs)have achieved remarkable advancements via extensive studies on the optimization of photovoltaic donor/acceptor(D/A)materials,device fabrication,and the D/A bulk heterojunction *** conversion efficiencies(PCEs)up to〜16%for single junction cells and over 17%PCEs were successfully demonstrated for tandem OSC devices[1,2].OSCs may find real industrial applications soon,including building integrated photovoltaics,portable power sources and indoor power generation for low power consumption electronic devices(i.e.,internet of things(IOT)sensors).Among them,indoor applications have great potentials because OSCs can convert indoor lights into electricity more efficiently compared to inorganic counterparts[3].

关键词： D/A power portable

Advanced Thin Film Cathodes for Lithium Ion Batteries

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Research 2020年第1期2020卷 486-509页

作者： Zhimin Qi Haiyan Wang School of Materials Engineering Purdue UniversityWest LafayetteIN 47907USA School of Electrical and Computer Engineering Purdue UniversityWest LafayetteIndiana 47907USA

Binder-free thin film cathodes have become a critical basis for advanced high-performance lithium ion batteries for lightweight device applications such as all-solid-state batteries,portable electronics,and flexible ***,these thin film electrodes generally require modifications to improve the electrochemical *** overview summarizes the current modification approaches on thin film cathodes,where the approaches can be classified as single-phase nanostructure designs and multiphase nanocomposite *** representative advancements of different modification approaches are also ***,this review discusses the existing challenges regarding the thin film *** review also discusses the future research directions and needs towards future advancement in thin film cathode designs for energy storage needs in advanced portable and personal electronics.

关键词： film portable Cathode

Meso-Scale VOC-Mixture Analyzer with Tunable Separation and Microsensor Array Detection

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稀有金属材料与工程 2006年第A3期35卷 61-64页

作者： Qiongyan Zhong William H. Steinecker Edward T. Zellers Department of Environmental Health Sciences University of Michigan 109 S. Observatory St. Ann Arbor MI 48109-2029 USA Department of Chemistry University of Michigan 109 S. Observatory St. Ann Arbor MI 48109-2029 USA

A novel portable instrument developed for field determinations of complex mixtures of volatile organic compounds (VOCs) is *** key features of the instrument are a miniature multi-stage adsorbent preconcentrator/focuser,two series-coupled separation columns with pressure and temperature tunable retention control,and an integrated array of four chemiresistor (CR) sensors coated with Au-thiolate monolayer-protected nanoparticles (MPN).MPN-CR array response patterns are used with retention times to identify eluting *** is used as the carrier *** of 20 common indoor air contaminants gave LODs in the range of 0.05 ng/g～0.53 ng/g for a 1 L sample *** of preliminary analyses of characteristic VOCs generated from *** as well as vapor-phase markers of environmental tobacco smoke (ETS) at low-or sub-ng/g levels are presented.

关键词： microsensor gas chromatography nanoparticle sensor array portable ETS