2007 2nd IEEE International Conference on Nano/Micro Engineered and Molecular Systems最新文献_第7页

Electrorotation: Diagnostic Tool for Abnormality of Marine Phytoplankton Cells 电旋:海洋浮游植物细胞异常的诊断工具

2007 2nd IEEE International Conference on Nano/Micro Engineered and Molecular Systems Pub Date : 2007-04-23 DOI: 10.1109/NEMS.2007.352213

P. Wanichapichart, T. Wongluksanapan, L. Khooburat

{"title":"Electrorotation: Diagnostic Tool for Abnormality of Marine Phytoplankton Cells","authors":"P. Wanichapichart, T. Wongluksanapan, L. Khooburat","doi":"10.1109/NEMS.2007.352213","DOIUrl":"https://doi.org/10.1109/NEMS.2007.352213","url":null,"abstract":"This work proposes a method to estimate cell dielectric properties using a rotating electric field. Signals given to four platinum electrodes were from a phase shift unit, which splits an input signal into four of pi/2 phase difference. The unit performs well under frequency below 5 MHz. Rotation patterns of pretreated Tetraselmis sp. were utilized to reveal dielectric information of the cells. The rotation of boiled cells diminished at the lower frequency range, while that of the arsenic pretreated cells was smaller than that of the control when higher arsenic concentration was used. The specific membrane conductance was increased from 0.5 kS.m-1 for the control to 90 kS.m-1 boiled cells. Pretreated cells with arsenic solution at 10 to 100 ppm levels increased the membrane conductance to 8.8 kS.m-1, much less effect compared to the boiled cells. Moreover, 24 hrs pretreatment was long enough for arsenic to penetrate the membrane, and the cytoplasmic permittivity was reduced from 39epsivO to about 13e0, independent of the arsenic levels used. The study can distinguish the viability from the non-viability cells by carefully selected field, frequency, and solution conductivity.","PeriodicalId":364039,"journal":{"name":"2007 2nd IEEE International Conference on Nano/Micro Engineered and Molecular Systems","volume":"32 5 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":"116357748","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: 5

Extracting the Young's Modulus and Stress Gradient of Thin Films from the Pull-in Voltage of a Micro Curled Cantilever Beam 从微卷曲悬臂梁的拉入电压中提取薄膜的杨氏模量和应力梯度

2007 2nd IEEE International Conference on Nano/Micro Engineered and Molecular Systems Pub Date : 2007-04-23 DOI: 10.1109/NEMS.2007.352026

Yuh-Chung Hu, C. Wei, C. Hsiao, D.T.W. Li

引用次数: 4

A Drug Delivery System Based on Polymer Nanotubes 基于聚合物纳米管的药物输送系统

2007 2nd IEEE International Conference on Nano/Micro Engineered and Molecular Systems Pub Date : 2007-04-23 DOI: 10.1109/NEMS.2007.352134

K. Koombua, R. Pidaparti, G. Tepper

引用次数: 5

Acoustic Analysis of Single-Walled Carbon Nanotube-based Vacuum Sensor 单壁碳纳米管真空传感器的声学分析

2007 2nd IEEE International Conference on Nano/Micro Engineered and Molecular Systems Pub Date : 2007-04-23 DOI: 10.1109/NEMS.2007.352225

Yi Zhang, Hang Guo

引用次数: 2

The application of Iron Oxide magnetic nanoparticles to improve the binding efficiency of the IgG and Thiol SAMs 应用氧化铁磁性纳米颗粒提高IgG和硫醇类SAMs的结合效率

2007 2nd IEEE International Conference on Nano/Micro Engineered and Molecular Systems Pub Date : 2007-04-23 DOI: 10.1109/NEMS.2007.352255

D. Yao, Chun-Yi Lin, Fang-Gang Tseng

引用次数: 1

Fabrication of Nanowire Arrays Using Diblock Copolymer 用双嵌段共聚物制备纳米线阵列

2007 2nd IEEE International Conference on Nano/Micro Engineered and Molecular Systems Pub Date : 2007-04-23 DOI: 10.1109/NEMS.2007.352229

V. Sudha Rani, C.O. Kim, B. Parvatheeswara Rao, S. Yoon, Cheolgi Kim

{"title":"Fabrication of Nanowire Arrays Using Diblock Copolymer","authors":"V. Sudha Rani, C.O. Kim, B. Parvatheeswara Rao, S. Yoon, Cheolgi Kim","doi":"10.1109/NEMS.2007.352229","DOIUrl":"https://doi.org/10.1109/NEMS.2007.352229","url":null,"abstract":"Electrodeposited Co nanowires were grown on self assembled diblock copolymer nanoporous templates. While keeping the template pore size and electrolyte pH value constant at 13.7 nm and 3.82, respectively, the DC current density (5 mA/cm2 and 50 mA/cm2) and time of deposition (50s, 100s, 150s and 200s) were varied as an attempt to obtain nanowires of varied aspect ratios and morphologies. It was observed that height of the nanowire linearly enhances with the time of the electrodeposition. SEM images of the samples indicate that the template pores were completely filled during deposition when the current density was set 50 mA/cm2. Excess times of deposition produced a thin layer of the deposited material on top of the porous template. Magnetic hysteresis properties of the generated nanowires were examined by vibration sample magnetometry. The loops displayed are highly square with coercivities of few tens of oersteds. The magnetization of the Co nanowires enhances as the height of the wires increases. The results were analyzed to understand the influence of current density on the growth of nanowires.","PeriodicalId":364039,"journal":{"name":"2007 2nd IEEE International Conference on Nano/Micro Engineered and Molecular Systems","volume":"49 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":"127015465","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: 3

Blue Emission Mechanism of NPB/ZnSe Hybrid Structure NPB/ZnSe杂化结构蓝色发射机理研究

2007 2nd IEEE International Conference on Nano/Micro Engineered and Molecular Systems Pub Date : 2007-04-23 DOI: 10.1109/NEMS.2007.352100

N. Kayunkid, A. Keawprajak, A. Jaruwanawat, J. Nukeaw

引用次数: 3

On-Chip Continuous Blood Cell Subtype Separation by Deterministic Lateral Displacement 用确定性横向位移法在芯片上连续分离血细胞亚型

2007 2nd IEEE International Conference on Nano/Micro Engineered and Molecular Systems Pub Date : 2007-04-23 DOI: 10.1109/NEMS.2007.352171

Nan Li, Daniel T. Kamei, Chih-Ming Ho

{"title":"On-Chip Continuous Blood Cell Subtype Separation by Deterministic Lateral Displacement","authors":"Nan Li, Daniel T. Kamei, Chih-Ming Ho","doi":"10.1109/NEMS.2007.352171","DOIUrl":"https://doi.org/10.1109/NEMS.2007.352171","url":null,"abstract":"This paper presents a microfluidic device for continuous human blood cell subtype separation using the deterministic lateral displacement principle. Based on their significant size and shape differences, three major cell types of human whole blood - platelets, red blood cells and white blood cells -were demonstrated to be directly separated using a two-stage separation strategy. Even though all white blood cells are spherical and have diameters within a narrow range (8-20mum), the initial limitation for using this principle to separate white blood cell subtypes was conquered by attaching larger polystyrene microbeads to one of the subtypes to amplify the size differences. Specifically, continuous separation of human CD4+ T helper lymphocytes from other white blood cell subtypes was achieved with high purity and recovery due to the underlying high affinity and high specificity of the antigen-antibody interaction used to attach the microbeads to the lymphocytes. With our novel approach, the pure population of one blood cell subtype can be effectively isolated by exploring the deterministic lateral displacement principle, which has the advantages of the simplicity, high speed and high resolution. Because many cells express unique surface markers, this method can theoretically be applied to separate any target cell type from a heterogeneous mixture for downstream analysis.","PeriodicalId":364039,"journal":{"name":"2007 2nd IEEE International Conference on Nano/Micro Engineered and Molecular Systems","volume":"27 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":"116866401","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: 40

Natural Frequencies of Single-Walled Carbon Nanotubes 单壁碳纳米管的固有频率

2007 2nd IEEE International Conference on Nano/Micro Engineered and Molecular Systems Pub Date : 2007-04-23 DOI: 10.1109/NEMS.2007.352240

U. Lee, Hyukjin Oh, S. You

引用次数: 3

Fabrication of a Complicated Heat Transfer Microchannel System for CPU Cooling Study 一种用于CPU冷却的复杂传热微通道系统的制作研究

2007 2nd IEEE International Conference on Nano/Micro Engineered and Molecular Systems Pub Date : 2007-04-23 DOI: 10.1109/NEMS.2007.352104

H.T. Chen, C.W. Liu, S.G. Liu, C.S. Yang, C. Gau

引用次数: 1