The increasing use of nanomaterials in consumer and industrial products has aroused concerns regarding their fate in biological systems. An effective detection method to evaluate the safety of bio-nanomaterials is therefore very important. Titanium dioxide (TiO(2)), which is manufactured worldwide in large quantities for use in a wide range of applications, including pigment and cosmetic manufa...

We integrated a piezoelectric sensing layer lamina containing liquid crystals (LC) and spiropyran (SP) in a LC/SP mixture to create an optically reconfigurable modal sensor for a cantilever beam. The impedance of this LC/SP lamina was decreased by UV irradiation which constituted the underlying mechanism to modulate the voltage externally applied to the piezoelectric actuating layer. Illuminati...

Wireless Sensor Networks (WSNs) is one of the most upcoming research area in computer science. Many issues such as clustering, routing and security problems were addressed by the latest interdisciplinary science. Now a days the BioInspired Computing algorithms becomes more popular to solve the various issues of computer science field. BioInspired Computing algorithms are the excellent behavior ...

This article provides an overview of the recent development of ZnO nanowires (NWs) for chemoresistive sensing. Working mechanisms of chemoresistive sensors are unified for gas, ultraviolet (UV) and bio sensor types: single nanowire and nanowire junction sensors are described, giving the overview for a simple sensor manufacture by multiple nanowire junctions. ZnO NW surface functionalization is ...

Distributed sensor networks operating through wireless communication offer a powerful means to sense, analyze and respond to dynamic environments spread over vast areas. Latest developments in micro electro mechanical sensors (MEMS) and related devices offer several technical and operational advantages making distributed sensor networks as a viable approach. Robustly packaged, inexpensive, ener...

Environmental monitoring is evolving towards large-scale and low-cost sensor networks operating reliability and autonomously over extended periods of time. Sophisticated analytical instrumentation such as chemo-bio sensors present inherent limitations because of the number of samples that they can take. In order to maximize their deployment lifetime, we propose the coordination of multiple hete...

This article describes a bio-inspired method of identify the type of obstacles which could appear e.g. on the MAV’s (Micro Air Vehicles) way. The method is based on measurements made by a low-cost ultrasonic sensor. This kind of sensors are widely used for a distance measurement. The bio-inspired method used by ultrasound sensors uses echo of ultrasound signal to collect the knowledge about the...

Over the last decade, wireless communication networks have achieved many major successes and emerged as the key technology for enabling ubiquitous access to information. However, several challenges remain, energy-efficiency being one of the most notable. At the same time, biological systems are well known to be extremely energy efficient. From the brain that performs outstandingly complex tasks...

Wireless sensor networks basically consist of low cost sensor nodes which collect data from environment and relay them to a sink, where they will be subsequently processed. Since wireless nodes are severely power-constrained, the major concern is how to conserve the nodes' energy so that network lifetime can be extended significantly. Employing one static sink can rapidly exhaust the energy of ...