2007 2nd IEEE International Conference on Nano/Micro Engineered and Molecular Systems最新文献_第8页

Application of Micro Sensors on Diagnosis of Micro Fuel Cells 微型传感器在微型燃料电池诊断中的应用

2007 2nd IEEE International Conference on Nano/Micro Engineered and Molecular Systems Pub Date : 2007-04-23 DOI: 10.1109/NEMS.2007.352053

Chi-Yuan Lee, Shuo-Jen Lee, C. Hsieh

{"title":"Application of Micro Sensors on Diagnosis of Micro Fuel Cells","authors":"Chi-Yuan Lee, Shuo-Jen Lee, C. Hsieh","doi":"10.1109/NEMS.2007.352053","DOIUrl":"https://doi.org/10.1109/NEMS.2007.352053","url":null,"abstract":"The fuel cell has the potential to become an indispensable source of electric power. However, some problems have not yet been resolved. Measuring the temperature and humidity inside the fuel cells is currently difficult. Accordingly, in this study, array micro sensors are fabricated within the fuel cell, in which the temperature and humidity distributions are measured. The substrate of the bipolar plate of the fuel cell was made of stainless steel (SS-304) and the wet etching was employed to fabricate the channel on the stainless steel substrate. Then microelectromechanical systems (MEMS) technology was used to fabricate the array micro temperature sensors and the micro humidity sensors on the rib of channel of stainless steel. The advantages of array micro temperature sensors are their small volume, their high accuracy, their short response time, the simplicity of their fabrication, their mass production and their ability to measure the temperature at a precise location more effectively than the traditional thermocouple. The micro humidity sensors are made from gold and titanium as down and up electrodes in the channel. The performance curves of the single cell operating at 41.54 degC and gas flow rates of H2/O2 at 200/200ml/min. The max power density of the bipolar without micro sensor is 142 mW/cm2 and the current density is 463 mA/cm2. The max power density of the bipolar with micro sensor is 56 mW/cm2.","PeriodicalId":364039,"journal":{"name":"2007 2nd IEEE International Conference on Nano/Micro Engineered and Molecular Systems","volume":"16 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-04-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134183245","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

A Novel Fabrication for Pressure Sensor with Polymer Material and Its Characteristic Testing 一种新型高分子材料压力传感器制造方法及其特性测试

2007 2nd IEEE International Conference on Nano/Micro Engineered and Molecular Systems Pub Date : 2007-04-23 DOI: 10.1109/NEMS.2007.352081

H. Ko, C.W. Liu, C. Gau

引用次数: 2

Factors Influencing the Properties of Rifampicin Liposome and Applications for Dry Powder Inhaler 影响利福平脂质体性能的因素及其在干粉吸入器中的应用

2007 2nd IEEE International Conference on Nano/Micro Engineered and Molecular Systems Pub Date : 2007-04-23 DOI: 10.1109/NEMS.2007.352211

N. Changsan, T. Srichana

{"title":"Factors Influencing the Properties of Rifampicin Liposome and Applications for Dry Powder Inhaler","authors":"N. Changsan, T. Srichana","doi":"10.1109/NEMS.2007.352211","DOIUrl":"https://doi.org/10.1109/NEMS.2007.352211","url":null,"abstract":"RIF encapsulated liposome vesicles were prepared by chloroform film method followed by freeze drying technique to obtain a dry powder for aerosol delivery. The freeze drying conditions were designed according to the DSC results of the liposome suspension. Three sugars (mannitol, lactose and trehalose) were used as a cryoprotectant of liposome dry powder. NR 8383 cell line was used to determine immunological activation and toxicity of liposome products when LPS from E.coli was used as a positive control. High cholesterol content in the formulation created higher rigid bilayer membrane of liposome vesicle than the lower cholesterol content formulation thus provided a better physical stability. The lipid content had influenced on degree of encapsulation, higher lipid content in formulation produced higher % encapsulation. Mannitol was a suitable sugar for this dry powder aerosol when it provided a free flowing powder with an MMAD less than 5 mum (3.35 mum). In addition, RIF in liposome dry powder form showed better chemical stability than in suspension form after they were kept for 6 weeks both at 4degC and room temperature. The reconstituted liposome powder in PBS pH 7.4 gave the encapsulation about 22%. The products did not cause toxicity to the cell line and did not activate immune responses since the cell produced very low level of toxic cytokines (IL-lbeta and TNF-alpha) when compared to LPS. This indicates that the particles are able to reach alveoli without stimulation of immunological response and safe to alveolar macrophage.","PeriodicalId":364039,"journal":{"name":"2007 2nd IEEE International Conference on Nano/Micro Engineered and Molecular Systems","volume":"2 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-04-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133059398","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Nanoscale Cutting, Bending and Welding in a Nanoassembly 纳米组装中的纳米切割、弯曲和焊接

2007 2nd IEEE International Conference on Nano/Micro Engineered and Molecular Systems Pub Date : 2007-04-23 DOI: 10.1109/NEMS.2007.352078

Toshio Fukudal, Pou Liu

引用次数: 4

The Study of Flexible Plate Wave Device for Micro Pumping System 微泵系统柔性板波装置的研究

2007 2nd IEEE International Conference on Nano/Micro Engineered and Molecular Systems Pub Date : 2007-04-23 DOI: 10.1109/NEMS.2007.352057

M. Tsai, T. Leu

引用次数: 5

Fluorescence Visualization of Carbon Nanotubes Using Quenching Effect for Nanomanipulation 纳米操作中碳纳米管猝灭效应的荧光显示

2007 2nd IEEE International Conference on Nano/Micro Engineered and Molecular Systems Pub Date : 2007-04-23 DOI: 10.1109/NEMS.2007.351970

F. Arai, M. Nagai, A. Shimizu, A. Ishijima, T. Fukuda

引用次数: 3

Morphology of Silicon Nanowires Grown on Si(100) Substrate 在Si(100)衬底上生长的硅纳米线的形貌

2007 2nd IEEE International Conference on Nano/Micro Engineered and Molecular Systems Pub Date : 2007-04-23 DOI: 10.1109/NEMS.2007.352265

S. D. Hutagalung, K. A. Yaacob, R. Tan

引用次数: 0

New Design of a Compact Parallel Micro-Nano Two-Fingered Manipulator Hand 小型并联微纳双指机械手的新设计

2007 2nd IEEE International Conference on Nano/Micro Engineered and Molecular Systems Pub Date : 2007-04-23 DOI: 10.1109/NEMS.2007.352070

A. Ramadan, K. Inoue, T. Arai, T. Takubo, T. Tanikawa

引用次数: 9

NEMS Devices for Accelerometers Compatible with Thin SOI Technology 与薄SOI技术兼容的加速度计NEMS器件

2007 2nd IEEE International Conference on Nano/Micro Engineered and Molecular Systems Pub Date : 2007-04-23 DOI: 10.1109/NEMS.2007.352257

E. Oiller, L. Duraffourg, M. Delaye, H. Grange, S. Deneuville, J. Bernos, R. Dianoux, F. Marchi, D. Renaud, T. Baron, P. Andreucci, P. Robert

引用次数: 15

Investigations on Actuation Critical Response Voltage for IPMC Based on Modified EVOH lonomer 基于改进EVOH单体的IPMC驱动临界响应电压研究

2007 2nd IEEE International Conference on Nano/Micro Engineered and Molecular Systems Pub Date : 2007-04-23 DOI: 10.1109/NEMS.2007.352073

Yujun Zhang, Fengfu Li, Lei Li, Li-jun Dai

{"title":"Investigations on Actuation Critical Response Voltage for IPMC Based on Modified EVOH lonomer","authors":"Yujun Zhang, Fengfu Li, Lei Li, Li-jun Dai","doi":"10.1109/NEMS.2007.352073","DOIUrl":"https://doi.org/10.1109/NEMS.2007.352073","url":null,"abstract":"A novel ionic polymer-metal composite (IPMC), based on EVOH-SPEG ionomer synthesized by sulfonilication of poly (ethylene-co-vinyl alcohol) (EVOH) grafted 2-(2-chloroethoxy) ethanol (C4H9O2Cl) or 2-[2-(2-chloroethxy) ethoxyl ethanol (C6H13O3Cl) with 1, 3-propane sultone, has been prepared through electroless deposition of platinum on the bare polymer film. Based upon linear irreversible thermodynamics and cantilever beam model, the theoretical formula of IPMC actuation critical response voltage (UC) was set up. And the UC of IPMC based on different side chain length EVOH-SPEG were calculated with the intercept method and the theoretical formula, with the help of the IPMC tip force (FT) experiment. The calculated UC value was accordance with the influence of polymer structure and ionic conductivity on IPMC actuation critical response voltage, and there is a deviation between the UCobtained with intercept method and calculated by theoretical formula. As the theoretical principle, the UC theoretical formula could be used for analyzing the influence of polymer intrinsic characteristic on the actuation of IPMC material.","PeriodicalId":364039,"journal":{"name":"2007 2nd IEEE International Conference on Nano/Micro Engineered and Molecular Systems","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-04-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117022967","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0