Papers – Page 38 – TechConnect Briefs

Cell Detection and Discrimination by a Microfluidic-Integrated Broadband Microchamber

Denzi A., Apollonio F., Liberti M., Caterina M., Ning Y., Multari C., Palego C., Cheng X., Hwang J.C.M., Lehigh University, US

In the last years, the development of broadband microwave sensors for cell detection has become a great challenge. In this work, a broadband microchamber integrated with microfluidics is used for cell detection in the GHz [...]

On the velocity of spontaneous capillary flows in confined and open microchannels

Berthier J., Villard N., Pudda C., Boizot F., Nonglaton G., Costa G., Fontelaye C., Delapierre G., CEA-LETI, FR

In biotechnology and biology, conventional microfluidic systems using fluids moved by pumps, syringe or electric means are not the best solutions when portability and low-cost are an issue. Capillary-based systems fulfill the requirements for POC [...]

A novel Planetary Motion of Ferrofluid Drops in a Rotating Magnetic Field

Chen C-Y, National Chiao Tung University, TW

Driven by an external rotating field, a novel phenomenon of planetary-like double rotations, such as a local self-spin of individual drops and the global revolution of the drop array, is uncovered in arrayed ferrofluid drops. [...]

Introducing a Digital Micropump for Driving a Droplet in a Microfluidic Channel

Rezaei Nejad H., University of British Columbia, CA

This paper presents a novel pumping technique which is compatible with both digital and continuous microfluidic platforms. In essence, a target droplet (referred to as the pumped droplet) is pumped by actuating the secondary droplet [...]

TCAD Thermal Analysis of Gate Workfunction Engineered Recessed Channel MOSFET

Arora G., Monika M., Chaujar R., Delhi Technological University, IN

This paper discusses the thermal analysis of Gate Electrode Workfunction Engineered Recessed Channel (GEWE-RC) MOSFET involving an RC and GEWE design integrated onto a conventional MOSFET. Furthermore, it focuses on the comparative study of conventional [...]

Transmit and Receive of a cMUT Cell: Modeling and Experiments

Mao S.P., Rottenberg X., Rochus V., Helin P., Verbist A., Severi S., Nauwelaers B., Tilmans H.A.C., IMEC, BE

This paper presents the modeling, simulation and experimental verification of the transmit and receive properties of a single cell capacitive micromachined ultrasonic transducer (cMUT). It is a confirmation that the equivalent circuit model provides a [...]

Simple and Accurate Formula for the Electrostatically Actuated Curled Beam Problem

Younis M., SUNY Binghamton, US

We present analytical solutions of the electrostatically actuated initially deformed cantilever beam problem. We use a continuous Euler-Bernoulli beam model combined with a single-mode Galerkin approximation. We derive simple analytical expressions for two commonly observed [...]

A Computational Study on Detection of Ultra Small Volumes of Liquid and Solid Media in Microcavities Using Surface Acoustic Wave Devices

Senveli S.U., Tigli O., University of Miami, US

In this study, we use finite element method (FEM) analysis to show the possibility of a microsystem capable of detecting and analyzing liquid and solid media in minute amounts using surface acoustic wave (SAW) devices [...]

Modeling and Simulation of PVDF-TrFE Based MEMS Scale Cantilever Type Energy Harvesters

Toprak A., Tigli O., University of Miami, US

We present the FEM modeling and simulation of a cantilever type piezoelectric energy harvester constructed using PVDF-TrFE. PVDF-TrFE is a CMOS compatible, soft piezoelectric polymer with a moderate electromechanical coupling coefficient. It is also flexible [...]

Analysis and Simulation of Rare Cell Detection and Size Based Profiling Using Coupled Micro-Hall Detectors

Gajasinghe R.W.R.L., Gabriel A., Tigli O., University of Miami, US

In this paper, we propose a method that uses magnetic nanoparticles (MNPs) to detect, and also estimate sizes of rare cells using Hall-effect. Rare cells labeled with MNPs are detected in-flow using a pair of [...]