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SAMPE Baltimore 2015 Conference and Exhibition

作者： Okafor, Patricia Azuka Iroh, Jude Material Science and Engineering Program School of Energy Environmental Medical and Biomedical Engineering University of Cincinnati 2600 Clifton Avenue CincinnatiOH45221 United States

ISBN: (纸本)9781934551196

In this work, we have studied the electrochemical behavior of non-porous and porous graphene/polyimide composite films fabricated by the thermal degradation of grafted flexible acrylic acid on polyamic acid backbone. It is observed that pore size distribution has a significant effect on specific capacitance and bulk resistance of the composite material. BET and Electrochemical impedance spectroscopy (EIS) data reveal a complex pore distribution for the materials. As the porosity of the composite material increased, its bulk resistance decreased by up to 400% and the specific capacitance increased by up to 200%. Ionic diffusion resistance associated with the pore structure for the porous composite decreased due to easy access of electrolyte ions through the pore length of the material. Specific capacitance of up to 34,240mF/g was obtained for the composite system at a scan rate of 50mV/s which remained fairly stable through the 50 cycle runs. Potassium hexaflorophosphate (KPF6) dissolved in propylene carbonate was used as electrolyte for all the electrochemical techniques. Copyright 2015. Used by the Society of the Advancement of material and Process engineering with permission.

关键词： Composite films

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A new role for universities in training the nuclear workforce

A new role for universities in training the nuclear workforc...

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Conference on Nuclear Training and Education 2015, CONTE 2015

作者： Littrell, Janet L. Cole, Daniel G. University of Pittsburgh Swanson School of Engineering Department of Mechanical Engineering and Material Science Nuclear Engineering Program Benedum Hall 3700 0 Hara Street PittsburghPA United States

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A CMOS-compatible Large-Scale Monolithic Integration of Heterogeneous Multi-Sensors on Flexible Silicon for IoT Applications

A CMOS-compatible Large-Scale Monolithic Integration of Hete...

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IEEE International Electron Devices Meeting

作者： Joanna M. Nassar Galo A. Torres Sevilla Seneca J. Velling Marlon D. Cordero Muhammad Mustafa Hussain Integrated Nanotechnology Lab and Integrated Disruptive Electronic Applications (IDEA) Lab Computer Electrical Mathematical Science and Engineering Division King Abdullah University of Science and Technology (KAUST) Thuwal 23955-6900 Saudi Arabia Material & Nanoscience Program Faculty of Science University of Waterloo Waterloo ON N2L-3G1 Canada

ISBN: (纸本)9781509039036

We report CMOS technology enabled fabrication and system level integration of flexible bulk silicon (100) based multi-sensors platform which can simultaneously sense pressure, temperature, strain and humidity under various physical deformations. We also show an advanced wearable version for body vital monitoring which can enable advanced healthcare for IoT applications.

关键词： CMOS-compatible Large-Scale Flexible Silicon

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A synthetic biological secondary metabolite,Lycogen^TM,produced and extracted from Rhodobacter sphaeroides WL-APD911 in an optimizatioal scale-up strategy

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Food science and Human Wellness 2017年第4期6卷 195-201页

作者： Cheng-Chin Wang Shi-Ying Huang Shu-Hung Huang Zhi-Hong Wen Jyun-Ying Huang Wen-Sheng Liu Hui-Min David Wang Research and Development Department Chia-Yi SteelTainan 717TaiwanChina College of Oceanology and Food Science Quanzhou Normal UniversityQuanzhou 362000China Fujian Province Key Laboratory for the Development of Bioactive Material from Marine Algae Quanzhou 362000China Division of Plastic Surgery Department of SurgeryKaohsiung Medical University HospitalKaohsiung Medical UniversityKaohsiung 807TaiwanChina Graduate Institute of Medicine College of MedicineKaohsiung Medical UniversityKaohsiung 807TaiwanChina Center for Stem Cell Research Kaohsiung Medical UniversityKaohsiung 807TaiwanChina Department of Surgery Faculty of MedicineCollege of MedicineKaohsiung Medical UniversityKaohsiung 807TaiwanChina Orthopaedic Research Center Kaohsiung Medical UniversityKaohsiung 807TaiwanChina Doctoral Degree Program in Marine Biotechnology National Sun Yat-sen University and Academia SinicaKaohsiung 804TaiwanChina Marine Biomedical Laboratory and Center for Translational Biopharmaceuticals Department of Marine Biotechnology and ResourcesNational Sun Yat-sen UniversityKaohsiung 804TaiwanChina Graduate Institute of Biomedical Engineering National Chung Hsing UniversityTaichung 402TaiwanChina Department and Graduate Institute of Aquaculture National Kaohsiung Marine UniversityKaohsiung 811TaiwanChina Asia-Pacific Biotech Developing Inc.Kaohsiung 803TaiwanChina Department of Medical Research China Medical University HospitalChina Medical UniversityTaichung 404TaiwanChina

The optimization of fermentation medium is important for synthetic biological secondary metabolite *** effect of rotation speed,inoculum amount,and medium supplements on the cell growth and Lycogen^TM secretion of photobacterium Rhodobacter sphaeroides WL-APD911 was *** results reveal that a higher rotational speed exhibit a higher cell density,and the increasing in the amount of inoculum amount show a slight augment on the growth of *** *** the case of nitrogen sources adding,Lycogen^TM production was achieved with a 0.5 mM l-lysine ***,the attention of Tween 80 presented a tremendous increase in the secondary *** surface methodology(RSM)exhibited the optimization of medium supplements for Lycogen^TM invention is accomplished at molasses concentration of 10 g/L,yeast extract concentration of 40 g/L,0.3%Tween 80 and NaCl concentration of 5 g/L,***,the batch fermentation is carried out in both 5 L and 20 L fermentors to study the scale-up process factors to be *** a 20 L fermentor,Lycogen^TM yields under the optimal culture condition are over 2 times than in the shake *** present results provide the Lycogen^TM optimal culture mediums,scale-up procedures and efficient extractions from *** WL-APD911.

关键词： Rhodobacter sphaeroides WL-APD911 Lycogen^TM Response surface methodology(RSM) Ferementation

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Vertically aligned nanocomposite oxide thin films with enhanced ionic conductivity 228

Vertically aligned nanocomposite oxide thin films with enhan...

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Symposium on Ionic Conducting Oxide Thin Films - 228th ECS Meeting

作者： Su, Qing Zhang, Wenrui Jacob, Clement Yoon, Daeil Manthiram, Arumugam Wang, Haiyan Department of Material Science and Engineering Texas A and M University College StationTX77843-3128 United States Department of Electrical and Computer Engineering Texas A and M University College StationTX77843-3128 United States Electrochemical Energy Laboratory Materials Science and Engineering Program University of Texas at Austin AustinTX78712 United States

ISBN: (纸本)9781607685395

Oxide thin films with high ionic conductivity are crucial for sustainable energy production systems such as fuel cells that provide efficient and environmental-friendly energy. Key materials science efforts are associated with developing such oxides with high ionic conductivity. Of particular importance for developing thin film oxide materials is high performance and good stability in the operation temperature range. In this paper, vertically aligned nanocomposites (VAN) approach is reviewed. It creates vertical interfaces of two oxide materials and provides a new design paradigm to manipulate functionalities that cannot be obtained in individual constituents. Two major examples corresponding to ionic conducting oxide thin films in the VAN form presented are: (1) vertically aligned electrolyte/electrolyte nanocomposites with superior vertical ionic conductivity, and (2) vertically aligned electrode/electrolyte nanocomposites as an interlayer to increase the catalytic reaction probability. Finally, opportunities of tuning functionalities of such VAN systems are introduced. © The Electrochemical Society.

关键词： Nanocomposites

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Monitoring of microbial canned food spoilage and contamination based on e-nose for smart home

Monitoring of microbial canned food spoilage and contaminati...

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International Conference on Electrical engineering/Electronics, Computer, Telecommunications and Information Technology, ECTI-CON

作者： Phunvira Chongthanaphisut Thara Seesaard Teerakiat Kerdcharoen Department of Physics Faculty of Science Mahidol University Bangkok Thailand Material Science and Engineering program Faculty of Science Mahidol University Bangkok Thailand

In this paper, we have developed an electronic nose (e-nose) consisting of four gas sensors based on functionalized single-walled carbon nanotubes (f-SWNTs) and polymer nanocomposites, aiming to be a convenient monitoring device for microbial spoilage and contaminants in canned food. The gas sensing signals were used as early indicators of the spoilage to help prevent harmful effects on human's health. The gas sensor array has been tested to observe the specific response with various volatile organic compounds (VOCs) in a static system. These sensors are appropriate for detecting the microbial spoilage of canned food because they show a good sensing response to ammonia, which is one of the gases produced from micro-organisms. Canned tuna in mineral water, which was used as our sample, was opened and placed at room temperature (25°C). Then, the odor associated with the spoilage of canned tuna was monitored by e-nose for ten days. Discrimination of microbial canned tuna spoilage status and analysis of the smell-print of specific level of ammonia contamination were visualized using principal component analysis (PCA), which was found to be able to track changes in the canned tuna deterioration, thereby showing its potential to be applied for quality assurance of canned food in daily life of a person living in a smart home.

关键词： Polymers Chemical sensors Monitoring Principal component analysis Temperature measurement Temperature sensors

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Can we manufacture diagnostic test strips using an Inkjet printer?

Can we manufacture diagnostic test strips using an Inkjet pr...

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IEEE Global Humanitarian Technology Conference (GHTC)

作者： Nicholas Frazzette Jennifer Dobson Arwa Mukhtar Bridget Burt Janak Jethva James Adair Khanjan Mehta Humanitarian Engineering and Social Entrepreneurship (HESE) Program School of Engineering Design Technology and Professional Programs Department of Material Science and Engineering The Pennsylvania State University University Park PA USA

Developing countries face an increasing double disease burden of chronic health conditions like cancer, cardiovascular disease, and diabetes alongside traditional communicable diseases like tuberculosis, HIV/AIDS, and malaria. Rural patients often cannot afford to visit established medical centers because of the cost or time associated with travel. Poor education and social stigma prevent patients from seeking medical attention or getting tested for curable illnesses. Access to affordable and accessible tools for screening and diagnosis of common illnesses can greatly reduce the strain on fledgling health care systems. This article provides a proof-of-concept for manufacturing dipstick test strips that can be used for a variety of screening tests including diabetes and urinary tract infections. By repurposing a traditional, piezo inkjet printer with chemically active solutions that match the fluid properties of traditional printer ink, test strips can be printed in a just-in-time manner in low-resource settings.

关键词： Ink Decision support systems Printing Strips Diseases Conferences

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High-Performance Snsb Nanostructured Electrode Assembly for Lithium-Ion Batteries

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ECS Meeting Abstracts 2016年第2期MA2016-03卷

作者： Qianlei Jiang Mengqiu Jia Daozhong Hu Yuhong Jin Yujuan Zhao Changwei Ji Guyue New Material Research Institute College of Materials Science and Engineering Beijing University of Chemical Technology National 863 Program Power Battery Test Base China North Vehicle Research Institute College of Environmental and Energy Engineering

Lithium-ion batteries as a new clean energy with high specific energy and excellent cycle performance and long life serve widely as the power source for many portable electronic devices. However, their power and energy densities need to be further increased particularly for the application in electric vehicles. It is important to develop high capacity anode materials to increase the energy density of lithium-ion batteries as the anode material is one of the key factors affect the performance of lithium-ion batteries. SnSb intermetallic alloys are attractive materials as a potential substitute for the conventional graphite anode because their theoretical capacity of SnSb alloys has been estimated to be superior to that of graphite. However, its practical use is hampered by their large volume change during alloying and de-alloying reaction with Li+, as the continuous volume change during cycling will cause the mechanical pulverization resulting in poor cyclability and cracking of the electrode. Various strategies have been brought forward to improve the cycling stability, for example, preparing thin film materials or nanostructured materials. nanostructured alloy anodes have shown an improved cycle lifetime because nanostructured alloy anodes can accommodate the large volume change and maintain the structural integrity of the electrode during the lithiation/de-lithiation process. In this paper, a nanostructured SnSb anode for Li-ion battery has been prepared by a two-step electrode design consisting of the electrochemically assisted template growth of Cu nanopillars onto a current collector followed by electrochemical plating of SnSb, there among, Cu nanopillars current collector was obtained by P. Simon's method. We try to take advantage of the nanostructuration of our electrodes to buffer the mechanical strains occurring during the cycling of tin and antimony with Li+, thanks to larger free space available for alloy–dealloying reactions, delivers a high cycle life a

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Novel dielectric films with high energy density

Novel dielectric films with high energy density

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Conference on Electrical Insulation and Dielectric Phenomena, (CEIDP)

作者： Mattewos Tefferi Rui Ma Greg Treich Greg Sotzing Ramamurthy Ramprasad Yang Cao Electircal and Computer Engineering University of Connecticut Storrs CT USA Polymer Program University of Connecticut Storrs CT USA Material Science and Engineering University of Connecticut Storrs CT USA

Capacitive energy storage devices are essential components in modern electronics for power conditioning, conversion and renewable integration. The state-of-the-art bi-axially oriented polypropylene dielectric film has... 详细信息

关键词： Dielectric constant Plastics Electric breakdown Temperature measurement Dielectric losses Dielectric measurement

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Modification of carbon nanotube with poly(3-hexylthiophene) by using RF rotating plasma

Modification of carbon nanotube with poly(3-hexylthiophene) ...

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IEEE International Conference on Plasma science (ICOPS)

作者： Gamze Celik Cogal Sadik Cogal Aysegul Oksuz Master of Science Program in Engineering in Material Technologies Mehmet Akif Ersoy University Burdur Turkey Faculty of Engineering and Architecture Mehmet Akif Ersoy University Burdur Turkey Faculty of Science and Arts Suleyman Demirel University Isparta Turkey

Carbon nanotubes (CNT) is one of the most investigated materials before the invention of graphene. 1 Due to its unique properties, CNTs have been used in various applications include sensors, solar cells, transistors, etc. 2 However, it makes difficult to make nano-devices based on CNTs at a large scale. For this reason, formation of composite with conducting polymers is a good way for modification of CNT. 3 In this study, CNT was modificated with poly(3-hexylthiophene) by using RF rotating plasma. The obtained modified graphene particles were characterized with FTIR, SEM-EDS, XRD and TGA methods.

关键词： Carbon nanotubes Radio frequency Plasmas Polymers Sun Service-oriented architecture Art

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