Sensors, MEMS, Electronics – Page 79

Uncoil long DNA molecules in nanoposts array

Wu J., Shao G., Choi J., Uba F.I., Soper S.A., Park S., Louisiana State Univ., US

A nanoposts array was fabricated on a PMMA based nanofluidic chip by nanoimprinting lithography. The electrophoresis of Lambda and T4 DNA in the nanoposts was studied. A periodical stretching and recoiling motion was observed. Each [...]

All-In-Polymer Injection Molded Device for Single Cell Capture Using Multilevel Silicon Master Fabrication

Tanzi S., Larsen S.T., Matteucci M., Taboryski R., Technical University of Denmark, DTU Nanotech, DK

This work demonstrates a novel all-in-polymer device for single cell capture applicable for biological recordings. The chip is injection molded and comprises a “cornered” (non planar) aperture. Zanetti et al. have reported that mammalian cells [...]

Effects of Solvents on Dissolution of Photoresist in Parylene Microchannels

Ceylan Koydemir H., Kulah H., Ozgen C., Tosun I., Middle East Technical University, TR

This paper presents a detailed study for the effects of different types of solvents on dissolution of photoresist inside the parylene micro-channels, for the first time. Experimental results indicate that photoresist dissolution in dipolar aprotic [...]

Polymer microfluidic chip with embedded CNTs for DNA sample preparation

Khuntontong P., Chan J.X., Gong M., Wang Z.P., Singapore Institute of Manufacturing Technology, SG

We present a polymer-based microfluidic chip which has deposited carbon nanotubes (CNTs) onto the microchannel. The chip is capable of performing DNA preparation process like restriction enzyme digestion and ligation of DNA. The advantage of [...]

Free-Surface Microfluidics: Exploring New Actuation and Sensing Methods

Yu G., Lei N., Chen X., Xue W., Xu J., Xue W., Washington State University, US

Unlike traditional microchannel-based microfluidics, free-surface microfluidics features no channel, ease to clean, simple design fabrication and operation, as well as external access to the samples. It has been proven that free-surface droplets can be actuated [...]

Numerical Study on a passive micromixer with sinusoidal channel walls

Afzal A., Kim K-Y, Inha University, KR

Mixing of liquid samples in microfluidic systems has attracted many researchers mainly due to small characteristic dimensions of these channels, absence of turbulence and small diffusion coefficients. Depending on the mode of operation, different realizations [...]

Motion of Magnetic Chains in a Vibrating Field

Li Y-H, Sheu S-T, Pai J-M, Chen C-Y, National Chiao Tung University, TW

In this work, we have carried out an intensive experimental study on the manipulations of micro magnetic particle chains under vibrating magnetic fields. The chain is firstly formed by a uniform directional field, and then [...]

Critical heat flux (CHF) enhancement of the nanofluids by the electrical explosion of a wire in liquids

Park E., Park H., Bang I., Park E., Park H., Ulsan National Institute of Science and Technology(UNIST), KR

Nanofluids, dispersed nanoparticles in base fluid, have been drawing the attention as heat transfer fluid for enhancement of critical heat flux (CHF). The enhancement of CHF contributes to increase the safety margin of thermal system. [...]

Heat transfer behaviour of Nanofluids

Nayak A.K., Kulkarni P.P., Singh R.K., Vijayan P.K., Bhabha Atomic Research Centre, IN

Nanofluids are stable colloidal suspensions of nanoparticles, nanofibers, or nanocomposites in common base fluids, These nanofluids can possess properties that are substantially different from their parent materials. Study on nanofluids heat transfer is rather a [...]

Study on the Heat Transfer Capability of Silicon Carbide – Ethylene Glycol Nanofluid

Bobbo S., Colla L., Scattolini M., Fedele L., Consiglio Nazionale delle Ricerche, IT

Ethylene glycol-based nanofluids containing silicon carbide (SiC) in the concentrations 0.1, 1 and 5 wt% were characterized, in order to understand their potentiality to improve the heat transfer efficiency of the base fluid. Measurements performed [...]