The 9th IEEE International Conference on Nano/Micro Engineered and Molecular Systems (NEMS)最新文献_第5页

Fabrication of through-silicon vias (TSV) by nickel electroplating in supercritical CO2 超临界CO2中电镀镍制备硅通孔(TSV)

The 9th IEEE International Conference on Nano/Micro Engineered and Molecular Systems (NEMS) Pub Date : 2014-04-13 DOI: 10.1109/NEMS.2014.6908770

H. Chuang, W. Lai, Chih-Chung Huang, A. Liao, C. Yeh

引用次数: 2

An Aluminum Nano-Spike electroporation chip for low voltage delivery of molecules to cancer cells 一种用于向癌细胞低压输送分子的铝纳米尖刺电穿孔芯片

The 9th IEEE International Conference on Nano/Micro Engineered and Molecular Systems (NEMS) Pub Date : 2014-04-13 DOI: 10.1109/NEMS.2014.6908779

K. Riaz, S. Leung, S. Tripathi, Gursimran Singh Sethi, H. Shagoshtasbi, Z. Fan, Y.-K. Lee

{"title":"An Aluminum Nano-Spike electroporation chip for low voltage delivery of molecules to cancer cells","authors":"K. Riaz, S. Leung, S. Tripathi, Gursimran Singh Sethi, H. Shagoshtasbi, Z. Fan, Y.-K. Lee","doi":"10.1109/NEMS.2014.6908779","DOIUrl":"https://doi.org/10.1109/NEMS.2014.6908779","url":null,"abstract":"Micro electroporation (EP) devices with high efficiency and cell viability are useful for various biomedical applications, such as drug delivery and screening. However, these devices usually have low reliability due to undesirable electrochemical reactions. In this study, an Aluminum Nano-Spike EP (ANS-EP) chip was fabricated using nano-imprint lithography, electrochemical anodization and MEMS technology. The fabricated device was characterized using cervical cancer cell line (HeLa cells). The EP efficiency and cell viability as functions of electric pulse amplitude and duration were measured using digital fluorescent microscopy with Propidium Iodide (PI) dye. Numerical simulations of electric field strength indicated enhanced localized electric field at the tip due to high aspect ratio of nano-spikes. Systematic experiments revealed EP can be achieved with high efficiency and cell viability using ANS-EP chips without bubble generation at the critical applied voltage of 2.5 V, much smaller than the micro and conventional electroporators.","PeriodicalId":22566,"journal":{"name":"The 9th IEEE International Conference on Nano/Micro Engineered and Molecular Systems (NEMS)","volume":"12 1","pages":"147-151"},"PeriodicalIF":0.0,"publicationDate":"2014-04-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"78990960","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: 8

A novel micromixer with multimixing mechanisms for high mixing efficiency at low Reynolds number 一种低雷诺数下具有高混合效率的混合机制的新型微混合器

The 9th IEEE International Conference on Nano/Micro Engineered and Molecular Systems (NEMS) Pub Date : 2014-04-13 DOI: 10.1109/NEMS.2014.6908896

H. L. The, N. Tran-Minh, H. Le-Thanh, F. Karlsen

{"title":"A novel micromixer with multimixing mechanisms for high mixing efficiency at low Reynolds number","authors":"H. L. The, N. Tran-Minh, H. Le-Thanh, F. Karlsen","doi":"10.1109/NEMS.2014.6908896","DOIUrl":"https://doi.org/10.1109/NEMS.2014.6908896","url":null,"abstract":"In this paper, we propose a novel passive micromixer structure for high mixing efficiency based on the combination of multimixing principles. With a special structure, our proposed micromixer can create vortices, transversal flows and chaotic advections to provide high mixing efficiency event at low Reynolds number. Moreover, two narrow slits at two ends of each mixing unit remarkably reduce pressure drop, making it easy to be built into micro-devices. We conduct intensive simulation to evaluate the performance of our proposed micromixer by numerically solving the governing Navier-Stokes equation and convection-diffusion equation using COMSOL Multiphysics package. The simulation results indicate that our proposed micromixer may achieve stable mixing efficiency of 80% or above for a wide Reynolds number range from 0.5 to 100. Especially, at Reynolds number (Re) > 30, mixing efficiency is less dependent on Reynolds number. The mixing efficiency of our micromixer is two times higher than mixing efficiency of micromixer based on unbalanced splits and collisions of fluid at the same mixing channel length of 5mm. At Re = 30, our proposed micromixer has high mixing efficiency of 85% with moderate pressure drop ΔP = 12,600Pa.","PeriodicalId":22566,"journal":{"name":"The 9th IEEE International Conference on Nano/Micro Engineered and Molecular Systems (NEMS)","volume":"98 1","pages":"651-654"},"PeriodicalIF":0.0,"publicationDate":"2014-04-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80910491","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: 6

Molecular delivery and transfection by laser-induced oscillating microbubbles 激光诱导振荡微泡的分子传递和转染

The 9th IEEE International Conference on Nano/Micro Engineered and Molecular Systems (NEMS) Pub Date : 2014-04-13 DOI: 10.1109/NEMS.2014.6908813

Qihui Fan, Wenqi Hu, A. Ohta

引用次数: 0

Dynamic attachment of HepG2 in fractal microchannels 分形微通道中HepG2的动态吸附

The 9th IEEE International Conference on Nano/Micro Engineered and Molecular Systems (NEMS) Pub Date : 2014-04-13 DOI: 10.1109/NEMS.2014.6908757

Lung-Jieh Yang, Jia-Chi Liang, Cheng-Yang Liu, Hsieh-Cheng Han

引用次数: 0

The fabrication of PDMS-based functional surface mimicking the namib desert beetle back for collecting water vapor in the air 基于pdms的纳米沙漠甲虫背部收集空气中水蒸气功能表面的制备

The 9th IEEE International Conference on Nano/Micro Engineered and Molecular Systems (NEMS) Pub Date : 2014-04-13 DOI: 10.1109/NEMS.2014.6908840

Wei Hu, Wen Liu, F. Zhu, Xiao-Sheng Zhang, Haixia Zhang

引用次数: 0

Pulse mode actuation-readout system based on MEMS resonator for liquid sensing 基于MEMS谐振器的脉冲驱动读出系统用于液体传感

The 9th IEEE International Conference on Nano/Micro Engineered and Molecular Systems (NEMS) Pub Date : 2014-04-13 DOI: 10.1109/NEMS.2014.6908794

Meng Tang, A. Cagliani, Z. Davis, Lin He

引用次数: 0

Detection of hazardous vapors including mixture in different conditions using surface acoustic wave device array 利用表面声波装置阵列对不同条件下的有害气体(包括混合气)进行检测

The 9th IEEE International Conference on Nano/Micro Engineered and Molecular Systems (NEMS) Pub Date : 2014-04-13 DOI: 10.1109/NEMS.2014.6908754

H. Hao, Ming-Chang Chiang, D. Yao

引用次数: 0

The demand model of electric field strength on microelectrode designed for AC electrokinetic applications 为交流电动应用设计了微电极的电场强度需求模型

The 9th IEEE International Conference on Nano/Micro Engineered and Molecular Systems (NEMS) Pub Date : 2014-04-13 DOI: 10.1109/NEMS.2014.6908890

N. A. M. Yunus, H. Jaafar, I. Halin, J. Jasni

引用次数: 3

In-plane-excited silicon nanowire arrays-patterned cantilever sensors for enhanced airborne particulate matter exposure detection 平面内激发硅纳米线阵列模式悬臂传感器用于增强空气中颗粒物暴露检测

The 9th IEEE International Conference on Nano/Micro Engineered and Molecular Systems (NEMS) Pub Date : 2014-04-13 DOI: 10.1109/NEMS.2014.6908753

H. S. Wasisto, S. Merzsch, F. Steib, A. Waag, E. Peiner

{"title":"In-plane-excited silicon nanowire arrays-patterned cantilever sensors for enhanced airborne particulate matter exposure detection","authors":"H. S. Wasisto, S. Merzsch, F. Steib, A. Waag, E. Peiner","doi":"10.1109/NEMS.2014.6908753","DOIUrl":"https://doi.org/10.1109/NEMS.2014.6908753","url":null,"abstract":"This paper presents the design, fabrication, and use of silicon nanowire (SiNW) arrays-patterned microcantilever sensors excited in the in-plane resonance mode to enhance the detection of airborne particulate matter (PM). Electrothermal excitation elements of p-diffused heating resistors were introduced in the current sensor system to replace the formerly used external piezoceramic stack actuator. The sensors exhibited high measured quality factors (Q-factors) of 4702 ± 102 during their in-plane mode operations in air, which are four times larger than those of the fundamental out-of-plane mode. To selectively define arrays of vertical SiNWs on the surface of the micromechanical cantilever, nanoimprint lithography (NIL) is combined with conventional photolithography. The diameter and position of the SiNWs can be adjusted depending on the nanoimprint stamp with the smallest cylindrical pattern possible down to 50 nm in diameter. By modifying the resonator surface, the PM sampling efficiency can be improved by a factor of 1.5 greater than that of a corresponding plain cantilever in a cigarette smoke exposure experiment because of the rise in collection surface area of the sensor given by the SiNWs.","PeriodicalId":22566,"journal":{"name":"The 9th IEEE International Conference on Nano/Micro Engineered and Molecular Systems (NEMS)","volume":"15 1","pages":"32-37"},"PeriodicalIF":0.0,"publicationDate":"2014-04-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89519056","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