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technology Roadmap for Flexible Sensors

ACS NANO 2023年第6期17卷 5211-5295页

作者： Luo, Yifei Abidian, Mohammad Reza Ahn, Jong-Hyun Akinwande, Deji Andrews, Anne M. Antonietti, Markus Bao, Zhenan Berggren, Magnus Berkey, Christopher A. Bettinger, Christopher John Chen, Jun Chen, Peng Cheng, Wenlong Cheng, Xu Choi, Seon-Jin Chortos, Alex Dagdeviren, Canan Dauskardt, Reinhold H. Di, Chong-an Dickey, Michael D. Duan, Xiangfeng Facchetti, Antonio Fan, Zhiyong Fang, Yin Feng, Jianyou Feng, Xue Gao, Huajian Gao, Wei Gong, Xiwen Guo, Chuan Fei Guo, Xiaojun Hartel, Martin C. He, Zihan Ho, John S. Hu, Youfan Huang, Qiyao Huang, Yu Huo, Fengwei Hussain, Muhammad M. Javey, Ali Jeong, Unyong Jiang, Chen Jiang, Xingyu Kang, Jiheong Karnaushenko, Daniil Khademhosseini, Ali Kim, Dae-Hyeong Kim, Il-Doo Kireev, Dmitry Kong, Lingxuan Lee, Chengkuo Lee, Nae-Eung Lee, Pooi See Lee, Tae-Woo Li, Fengyu Li, Jinxing Liang, Cuiyuan Lim, Chwee Teck Lin, Yuanjing Lipomi, Darren J. Liu, Jia Liu, Kai Liu, Nan Liu, Ren Liu, Yuxin Liu, Yuxuan Liu, Zhiyuan Liu, Zhuangjian Loh, Xian Jun Lu, Nanshu Lv, Zhisheng Magdassi, Shlomo Malliaras, George G. Matsuhisa, Naoji Nathan, Arokia Niu, Simiao Pan, Jieming Pang, Changhyun Pei, Qibing Peng, Huisheng Qi, Dianpeng Ren, Huaying Rogers, John A. Rowe, Aaron Schmidt, Oliver G. Sekitani, Tsuyoshi Seo, Dae-Gyo Shen, Guozhen Sheng, Xing Shi, Qiongfeng Someya, Takao Song, Yanlin Stavrinidou, Eleni Su, Meng Sun, Xuemei Takei, Kuniharu Tao, Xiao-Ming Tee, Benjamin C. K. Thean, Aaron Voon-Yew Trung, Tran Quang Wan, Changjin Wang, Huiliang Wang, Joseph Wang, Ming Wang, Sihong Wang, Ting Wang, Zhong Lin Weiss, Paul S. Wen, Hanqi Xu, Sheng Xu, Tailin Yan, Hongping Yan, Xuzhou Yang, Hui Yang, Le Yang, Shuaijian Yin, Lan Yu, Cunjiang Yu, Guihua Yu, Jing Yu, Shu-Hong Yu, Xinge Zamburg, Evgeny Zhang, Haixia Zhang, Xiangyu Zhang, Xiaosheng Zhang, Xueji Zhang, Yihui Zhang, Yu Zhao, Siyuan Zhao, Xuanhe Zheng, Yuanjin Zheng, Yu-Qing Zheng, Zijian Zhou, Tao Zhu, Bowen Zhu, Ming Zhu, Rong Zhu, Yangzhi Zhu, Yong Zou, Guijin Chen, Xiaodong 08-03 Innovis Singapore 138634 Republic of Singapore Innovative Centre for Flexible Devices (iFLEX) School of Materials Science and Engineering Nanyang Technological University Singapore 639798 Singapore Department of Biomedical Engineering University of Houston Houston Texas 77024 United States School of Electrical and Electronic Engineering Yonsei University Seoul 03722 Republic of Korea Department of Electrical and Computer Engineering The University of Texas at Austin Austin Texas 78712 United States Microelectronics Research Center The University of Texas at Austin Austin Texas 78758 United States Department of Chemistry and Biochemistry California NanoSystems Institute and Department of Psychiatry and Biobehavioral Sciences Semel Institute for Neuroscience and Human Behavior and Hatos Center for Neuropharmacology University of California Los Angeles Los Angeles California 90095 United States Colloid Chemistry Department Max Planck Institute of Colloids and Interfaces 14476 Potsdam Germany Department of Chemical Engineering Stanford University Stanford California 94305 United States Laboratory of Organic Electronics Department of Science and Technology Campus Norrköping Linköping University 83 Linköping Sweden Wallenberg Initiative Materials Science for Sustainability (WISE) and Wallenberg Wood Science Center (WWSC) SE-100 44 Stockholm Sweden Department of Materials Science and Engineering Stanford University Stanford California 94301 United States Department of Biomedical Engineering and Department of Materials Science and Engineering Carnegie Mellon University Pittsburgh Pennsylvania 15213 United States Department of Bioengineering University of California Los Angeles Los Angeles California 90095 United States School of Chemistry Chemical Engineering and Biotechnology Nanyang Technological University Singapore 637457 Singapore Nanobionics Group Department of Chemical and Biological Engineering Monash University Clayton Australia 3800 Monash

Humans rely increasingly on sensors to address grand challenges and to improve quality of life in the era of digitalization and big data. For ubiquitous sensing, flexible sensors are developed to overcome the limitations of conventional rigid counterparts. Despite rapid advancement in bench-side research over the last decade, the market adoption of flexible sensors remains limited. To ease and to expedite their deployment, here, we identify bottlenecks hindering the maturation of flexible sensors and propose promising solutions. We first analyze continued...challenges in achieving satisfactory sensing performance for real-world applications and then summarize issues in compatible sensor-biology interfaces, followed by brief discussions on powering and connecting sensor networks. Issues en route to commercialization and for sustainable growth of the sector are also analyzed, highlighting environmental concerns and emphasizing nontechnical issues such as business, regulatory, and ethical considerations. Additionally, we look at future intelligent flexible sensors. In proposing a comprehensive roadmap, we hope to steer research efforts towards common goals and to guide coordinated development strategies from disparate communities. Through such collaborative

关键词： soft materials mechanics engineering flexible electronics conformable sensors bioelectronics human-machine interfaces body area sensor networks technology translation sustainable electronics

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Designing of potential siRNA molecules for African norovirus gene silencing: A computational approach

Pharmacological Research - Reports

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Pharmacological Research - Reports 2025年 3卷

作者： Oluwakemi Ebenezer Abel Kolawole Oyebamiji Adesoji Alani Olanrewaju Omowumi Temitayo Akinola Samson Olusegun Afolabi Ayodeji Arnold Olaseinde Jack Tuszynski Department of Physics University of Alberta Edmonton AB T6G 2E1 Canada Department of Chemistry and Industrial Chemistry Bowen University PMB 284 Iwo Osun State Nigeria Good Health and Wellbeing Research Clusters (SDG 03) Bowen University PMB 284 Iwo Nigeria Microbiology Programme Bowen University PMB 284 Iwo Osun State Nigeria Infochemistry Scientific Center ITMO University Saint Petersburg 191002 Russia Department of Material Science and Engineering Clemson University SC USA DIMEAS Politecnico di Torino Turin 10129 Italy Silesian University of Technology Gliwice 44-100 Poland

Introducing siRNAs into cells could degrade specific messenger RNA (mRNA) molecules, reducing the expression of the corresponding protein encoded by those mRNA molecules. Norovirus is the leading cause of both epidemic and pandemic acute gastroenteritis, which is inflammation of the stomach and intestine worldwide, and, as of present, no efficient vaccine is available to combat this norovirus disease. Since siRNA, therapeutics have gained significant attention for their potential to target and silence disease-causing genes. Our study utilizes different computational tools to design siRNA agents against the polyprotein of norovirus without causing off-target effects. According to the results of GC (guanine-cytosine) content, fold-free energy, binding energy, melting temperature, efficacy predictions, and molecular docking against human argonaute 2 protein (AGO2), two siRNA molecules are expected to exert the most effective action. The effectiveness and efficiency of siRNAs against norovirus need to be further examined in vivo before their use as alternative and practical molecular therapeutic agents.

关键词： SiRNA Polyprotein Norovirus Computational studies Gene silencers

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Green synthesis of Au on ZnO (Au/ZnO) nanoparticles using Ocimum americanum leaf extract: Nature changes of optic, structure, and morphology

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AIP Conference Proceedings 2021年第1期2381卷

作者： Iwan Syahjoko Saputra Shifa Dwi Koesumahelmi Yoki Yulizar Sudirman 1Study Programme of Cosmetic Technology Department of Science and Technology Sumatera Institute of Technology South lampung 35365 Indonesia 2Department of Chemistry Faculty of Mathematics and Natural Science University of Indonesia Depok 16424 Indonesia 3Center for Science & Technology of Advanced Material - National Nuclear Energy Agency of Indonesia BATAN Kawasan PUSPIPTEK Gd. 71 Tangerang Selatan Banten 15314 Indonesia

Green synthesis of Au on ZnO nanoparticles surface were successfully prepared using Ocimum americanum leaf extract. The reaction was carried out at room temperature using the green synthesis method. The nature changes of optic, structure, and morphology of Au on ZnO nanoparticles surface were characterized using UV-vis diffuse reflectance spectroscopy (UV-Vis DRS), Fourier transform infrared spectroscopy (FTIR), X-ray diffraction (XRD), Scanning electron microscopy (SEM), and Energy-dispersive X-ray spectroscopy (EDS). UV-vis DRS showed the change of optical properties and the band gap energy values of ZnO and Au/ZnO nanoparticles from 3.21 eV to 3.09 eV. Analysis of FTIR showed the decrease of absorption peak in functional group of -OH, C=C, moreover there is a shift in C-C absorption peak and strong vibration of Zn-O-Au which occurred at wavenumber of 519 cm−1. XRD showed the crystallite size average of ZnO and Au/ZnO is 65.78 nm and 81.99 nm. SEM showed the morphology of Au/ZnO is sphere. EDX shows the mass percent of element composition for Au, Zn, and O is 2.28, 75.50, and 16.11. From the existed data, can be concluded the presence of gold greatly affects to optical properties, structure, and morphology of ZnO nanoparticles surface.

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Improving microstructural homogeneity and reducing grain size of Zn-3Mg alloy through ECAP

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AIP Conference Proceedings 2023年第1期2643卷

作者： M. S. Dambatta S. Izman S. T. Auwal D. Kurniawan S. Ramesh U. Abdullahi H. Mas Ayu A. Shah A. Y. Gidado Auwal Ibrahim Musa Alhaji Ibrahim 1Faculty of Engineering Department of Mechanical Engineering Kano University of Science and Technology Wudil 3244 Kano State Nigeria 2Faculty of Mechanical Engineering Universiti Teknologi Malaysia Skudai 81310 Malaysia 3Mechanical Engineering Programme Area Universiti Teknologi Brunei Gadong 1410 Brunei Darussalam 4Faculty of Engineering Universiti Teknologi Brunei Tungku Highway Gadong BE1410 Brunei Darussalam 5Center of Advanced Manufacturing and Material Processing Department of Mechanical Engineering Faculty of Engineering University of Malaya 50603 Kuala Lumpur Malaysia 6Department of Mechanical Engineering Faculty of Engineering Ahmadu Bello University Zaria Nigeria 7Faculty of Mechanical and Automotive Engineering Technology Universiti Malaysia Pahang 26600 Pekan Pahang Malaysia 8Faculty of Technical and Vocational Universiti Pendidikan Sultan Idris 35900 Tanjong Malim Perak Malaysia

Recently, Zn and its alloys have been investigated due to its lower degradation rate than that of Mg-based alloys. However, it as-cast grainsize and microstructure homogeneity still required further enhancement. This research works aims to improve these properties on eutectic Zn-3Mg alloy via equal channels angular pressing (ECAP). Cast Zn-3Mg sample was heat treated at 370°C for 15hrs and quenched in water before ECAP processing at temperature of 200°C. Results revealed that, heat treatment followed by ECAP was effective in reducing the grain size of the as-cast alloy to 2 µm from 48 µm after 2-passes. This two-step processing remarkably increases the sample microstructure homogeneity. The study revealed that heat treatment followed by 2-ECAP passes was beneficial in enhancing the mechanical properties and degradation behaviour of Zn3Mg alloy as potential use for biodegradable implants material.

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Novel Design for CSRR Based Electronically Steered Compact S-band Microwave Resonator

Novel Design for CSRR Based Electronically Steered Compact S...

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Asia-Pacific Microwave Conference

作者： N. K. Tiwari Yash Tiwari Prakrati Azad M. Jaleel Akhtar Department of Electrical Engineering Institute of Technology Kanpur India Material Science Programme Indian Institute of Technology Kanpur India

Novel design of electronically tunable compact RF resonator operating in the S-band (2.7-3.1 GHz) of microwave frequency range is proposed. The proposed design makes use of the CSRR loaded microstrip line coupled to the varactor diode, where the electronic steering in the designated frequency band is facilitated by changing the biasing voltage of the varactor. With improved design topology, the proposed structure is able to provide an improved tunable range using the single CSRR resonator. In this work, the lumped capacitors are introduced at both the end of microstrip signal line to isolate the DC voltage from the applied RF signals without deteriorating the performance of the resonator. The proposed resonator is designed using the 3D electromagnetic solver CST-MWS (Computer Simulation technology-Microwave Studio), and accordingly various parameters are optimized to obtain the desired performance. After freezing various design parameters, the proposed resonator structure is fabricated on a commercially available FR-4 substrate. The testing of the fabricated structure is carried out using the network analyzer with a biasing voltage range of 0-28 V. A close match is observed between the measured and the simulated scattering parameters. The proposed resonator structure can be used for various applications in RF and microwave frequency range such as to design tunable filters and sensor for testing dispersive materials.

关键词： Resonator Varactor diode RF choke CSRR

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A dual band differential rectifying circuit for RF energy harvester

A dual band differential rectifying circuit for RF energy ha...

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Asia-Pacific Conference on Microwave

作者： Sandhya Chandravanshi M. Jaleel. Akhtar Department of Material Science Programme Indian Institute of Technology Kanpur India Department of Electrical Engineering Indian Institute of Technology Kanpur India

A compact dual band differential rectifying circuit operating in the GSM-1.8 GHz and ISM-2.45 GHz bands for RF energy harvesting application is proposed. The differential rectifier comprises of optimized dual band matching circuit for maximum power transfer to the load. The basic circuit is deigned and simulated using the Advanced Design System (ADS) software. The dimension of the overall circuit is 80 × 60 × 1.6 mm3, which is fabricated on a low cost FR-4 substrate. The fabricated circuit is finally tested to measure the RF and dc characteristics. The detailed analysis of the measured results shows that a maximum efficiency of up to 56 % can be achieved using the two tone measurement method for a typical available RF input power of 10 dBm.

关键词： Radio frequency Dual band Power measurement Rectifying circuits Energy harvesting Rectifiers Software

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Design of Efficient Rectifier Circuit in the GSM Band for Energy Harvesting Applications

Design of Efficient Rectifier Circuit in the GSM Band for En...

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IEEE MTT-S International Microwave and RF Conference

作者： Sandhya Chandravanshi M. Jaleel Akhtar Department of Material Science Programme Indian Institute of Technology Kanpur Kanpur Uttar Pradesh India Department of Electrical Engineering Indian Institute of Technology Kanpur Kanpur Uttar Pradesh India

a single band compact rectifying circuit operating in the GSM-900 band of frequency is proposed. The proposed RF rectifying circuit employs two-stage Dickson charge pump configuration along with the optimized impedance matching unit comprising of lumped components. The RF rectifying circuit is designed using the Advanced Design System (ADS) software, and is fabricated on a low cost FR-4 substrate. The dimension of the fabricated circuit is 6× 4× 1.6 cm3 thus making it quite compact. The overall performance of the designed circuit is evaluated for different types of load conditions. The maximum RF to DC conversion efficiency of 60% is achieved at 0 dBm input RF power for a 5 kΩ load.

关键词： Radio frequency Rectifiers Rectifying circuits Voltage measurement Energy harvesting Charge pumps Rectennas

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Novel spoof plasmonic based compact slow wave structure for terahertz and microwave applications 16

Novel spoof plasmonic based compact slow wave structure for ...

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16th Mediterranean Microwave Symposium, MMS 2016

作者： Pal, Picon Singh, S.P. Tiwari, N.K. Akhtar, M Jaleel Material Science Programme Indian Institute of Technology Kanpur Kanpur India Department of Electrical Engineering Indian Institute of Technology Kanpur Kanpur India

ISBN: (纸本)9781509025862

A novel compact slow wave structure (SWS) based on spoof plasmonic waveguide with meander lines in the terahertz (THz) and microwave frequency range is proposed. The use of the meander lines increases the effective length of the proposed structure thereby providing more path length for efficient trapping of the spoof surface plasmon polaritrons (SPPs). The meander line based SPPs structure is designed in THz and microwave frequency range using the full wave electromagnetic field simulator, the CST Studio. The area of proposed SWS is found to be reduced by 75% as compared to that of the conventional rectangular based surface plasmonic waveguide structure. The experimental verification of the proposed SWS is carried out in the microwave frequency band by fabricating the scaled up version, and measuring the transmission coefficient data using the network analyzer. © 2016 IEEE.

关键词： Electromagnetic wave polarization

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Microstructure phase distribution analysis of Al-Si-TiB2-Sr-Sc composite fabricated by casting technique

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AIP Conference Proceedings 2018年第1期2030卷

作者： N. N. A. Basir R. E. Ibrahim N. H. Mustafa R. Rosmamuhamadani M. K. Talari M. M. Mahat N. N. Bonnia S. M. Yahaya Materials Technology Programme School of Physics and Material Studies Faculty of Applied Sciences Universiti Teknologi MARA Selangor 40450 Shah Alam Selangor Malaysia Applied Chemistry Programme School of Chemistry and Environment Faculty of Applied Sciences Universiti Teknologi MARA Selangor 40450 Shah Alam Selangor Malaysia

The aluminium-silicon (Al-Si) alloys, based on the Metal Matrix Composites (MMCs) system are widely used in light-weight constructions and transport applications requiring a combination of high strength and ductility. A grain refinement plays a crucial role in improving characteristics and properties of Al-Si alloys. In this investigation, titanium diboride (TiB2), scandium (Sc) and strontium (Sr) elements were added to the aluminium alloys for grain refinement of the alloy. This study focused more on how to improve the microstructure of the alloy by adding some inoculants that mentioned above. The TiB2content was fixed at 6wt.% while 0.2-0.8wt.% Sc and Sr contents were chosen in this investigation. Characterizations of the alloy by using X-ray Diffraction (XRD) and Field Emission Scanning Electron Microscope (FESEM) were conducted to identify how the inoculants existence affected the phase composition and the microstructure of composite. From the results obtained, it showed that the hardness of the alloy increased compared to Al-Si-TiB2 -Sr alloy without addition of Sc. The study discovered that the inoculants can act as a grain refiner due to decrement size of dendritic structure and also responsible for the mechanical properties improvement.

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Hardness and adhesion performances of nanocoating on carbon steel

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IOP Conference Series: materials Science and Engineering 2018年第1期290卷

作者： J N Hasnidawani H N Azlina H Norita N N Bonnia Department of Manufacturing and Materials Engineering International Islamic University Malaysia (IIUM) Jalan Gombak 53100 Kuala Lumpur Malaysia Material Technology Programme Faculty of Applied Sciences Universiti Teknologi Mara (UiTM) Shah Alam 40450 Selangor Malaysia

Nanocoatings industry has been aggressive in searching for cost-effective alternatives and environmental friendly approaches to manufacture products. Nanocoatings represent an engineering solution to prevent corrosion of the structural parts of ships, insulation and pipelines industries. The adhesion and hardness properties of coating affect material properties. This paper reviews ZnO-SiO2 as nanopowder in nano coating formulation as the agent for new and improved coating performances. Carbon steel on type S50C used as common substrate in nanocoating industry. 3wt% ZnO and 2wt% SiO2 addition of nanoparticles into nanocoating showed the best formulation since hardness and adhesion of nanocoating was good on carbon steel substrate. Incorporation of nanoparticles into coating increased the performances of coating.

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