1. Background, Motivation and Objective : Point of care testing (POCT) which is defined as diagnostic testing at or near the site of patient care has been required for future home healthcare. There are various important requirements for the biosensor platform for POCT, such as portable, cost per test, maximum achievable sensitivity and specificity, ease of use and wireless connectivity. 2. Stat...

On-chip manipulation of micro-objects has long been sought to facilitate fundamental biological studies and point-of-care diagnostic systems. In recent years, research on surface acoustic wave (SAW) based micro-object manipulation (i.e., SAW acoustophoresis) has gained significant momentum due to its many advantages, such as non-invasiveness, versatility, simple fabrication, easy operation, and...

An optimum design technique for balanced surface acoustic wave (SAW) filters is proposed. First of all, in order to evaluate the performance of balanced SAW filters by the computer simulation, a numerical model of balanced SAW filters is derived by using mixed-mode scattering parameters. Then the structural design of balanced SAW filters is formulated as a function optimization problem that aim...

We present a standing surface acoustic wave (SSAW) based approach to achieve one-dimensional (1D) and two-dimensional (2D) alignment of nanowires (NWs). Our SSAW-based nanowire-aligning technique can be used to construct large-scale (e.g., centimeter scale) network of nanowires within 5 min. In this approach, we use interdigital transducers deposited on a piezoelectric substrate to generate dif...

Stress induced mass transport (acoustomigration) is the dominant failure mechanism in surface acoustic wave (SAW) devices. A strong microstructure damage of the metal finger electrodes by void and hillock formation results in an irreversible degradation of the electrical characteristics of the device. Copper based metallizations were applied to SAW technique using LiNbO3 and quartz substrates t...

In this paper we describe how the Stepwise Adaptation of Weights (saw) technique can be applied in genetic programming. The saw-ing mechanism has been originally developed for and successfully used in eas for constraint satisfaction problems. Here we identify the very basic underlying ideas behind saw-ing and point out how it can be used for different types of problems. In particular, saw-ing i...

Due to further applications of Surface acoustic wave (SAW) devices in many applicable electronics and communications fields, modeling and simulation for these devices become more urgent in recent years. SAW devices can found in frequency range from 10 MHz to several GHz. It can found in RF, IF, stages of mobile. SAW devices convert mechanical waves to electrical and vice versa through IDT. This...

A review of the principles and applications of surface acoustic wave (SAW) devices is given. An implementation of a design method for SAW devices using MATLAB is described. Results of a comparison between the proposed simulation technique and experimental test results are

Surface acoustic waves (SAW) have been employed to drive a particle suspension into a porous scaffold as a means for cell seeding. Straight, simple interdigital electrode structures were fabricated on lithium niobate to permit the generation of Rayleigh SAW radiation. Fluorescent microscopy was used to investigate the seeding process; the SAW-driven seeding process occurred in approximately 10s...