In recent years, the interest in integrated microfluidic systems has been steadily growing. In these systems (for instance (bio)chemical and DNA analysis and synthesis devices), accurate dosing of liquids and/or gases is of great importance. To achieve this, accurate (mass) flow sensing is necessary. This project is dedicated to the development of a new micro Coriolis flow sensor. The inherent ...

Graphene (G) and graphene oxide (GO) are 2D materials known to possess superior functionalities. This arises from their versatility to tune their electronic, electrochemical, optical, mechanical and thermal properties. However, G and GO can also be easily functionalized with various biomolecules and this has led to numerous graphenerelated biomedical sensing applications. Here we will demonstra...

We have designed a micromachined micro Coriolis flow sensor for the measurement of hydrazine (N2H4, High Purity Grade) propellant flow in micro chemical propulsion systems [1]. The sensor measures mass flow up to 6 mg/s for a single thruster or up to 24 mg/s for four thrusters. The sensor will first be used for measurement and characterization of the micro thruster system in a simulated space v...

Wireless Sensor Networks (WSNs) performs by collecting the sensed data from various sensor nodes and store them for future processing. The performance of sensor network application is based on energy efficiency which is maintained wholesome by processing the queries at MAC layer. In this paper it is decided to propose data flow without a little interference using Interferenceless Data Flow (IDF...

A theoretical model of gas permeation in polydimethylsiloxane (PDMS) is conducted for two prior works involving MEMS sensors and actuators. The issue for modeling a sensor is about using PDMS slabs to replace Pyrex glass as the packaging substrate for bulk-micromachined pressure sensors. The leakage pressure due to gas permeation in PDMS reveals the time-varying behavior of exponential decay. T...

A microelectromechanical systems (MEMS) thermal flow sensing array constructed of biocompatible materials has been designed, fabricated, nd tested. In addition to the construction, the electronic biasing conditions were selected such that sensor operation was compatible with biological uids. The device comprises several thin film platinum sensing elements sandwiched in a Parylene C membrane. Th...

Label-free monitoring of acetylcholinesterase (AChE) activity was achieved with a mid-infrared flow-through sensor. The flow-through sensor comprised agarose beads, carrying covalently immobilized AChE, which were placed in a temperature-controlled (37 degrees C) CaF(2) flow cell with an optical path of 60 mum. The sensor was incorporated into a computer-controlled sequential injection (SI) sys...

This paper investigates application of piezoelectric ceramics mounted on surface of mould to monitor flow front and curing phases of resin in Resin Transfer Moulding (RTM) process. The piezoelectric ceramic is used for both generating ultrasound and measuring energy of echoed ultrasonic wave at the interface of mould and resin. One of the advantages of this method is that the piezoelectric cera...