sensor – Page 2 – TechConnect Briefs

An Economical Lightweight Field Deployable PiezoElectric Gravimeter (PEG)

Conventional gravimeters typically measure the amount of the opposing forces required to suspend an object or by monitoring an objects freefall rate. The developed technology, a piezoelectric stimulus-response quantification based gravimeter (PEG), functions entirely different [...]

Transparent, Scalable, and Flexible Piezoelectric Pressure Sensors

Vishniakou S., UC San Diego, US

We present a pressure-sensitive ZnO thin-film transistor (TFT) as a potential technology for next-generation touchscreen. We discuss the properties of our devices and propose a structure that could be used to create transparent, scalable, and [...]

Engineering nanoinks and photonic manufacturing for printable electronics

Hu A., University of Tennessee, US

We have developed various nanoinks, including silver nanowires, silver nanoplates, Cu-Ag core-shell nanoparticles, graphene oxide and graphene. Gram level nanoplates are successfully synthesized through a polymer controlled hydrothermal growth. Core-shell structures are synthesized through a [...]

Ultrasensitive mercury sensors based on graphene decorated with nanoparticles

Ayesh A.I., Qatar University, QA

In this work we present a highly sensitive and selective sensor for detection of mercury traces in water. The sensor is constructed by creating interdigitated metal electrodes on a graphene layer placed on SiO2/Si substrate. [...]

Fabrication of Electroless Plated Nano Porous Gold Film for Trace Heavy Metal Ion Detection In Sensor Applications

Bhagavathula S., Ramanan S.R., Kim S.K., Krishnan J.N., BITS Pilani, K. K. Birla Goa Campus, IN

Nano porous gold film was fabricated by electroless plating with Potassium Gold Cyanide as plating solution. E-beam deposited Cu substrates were chosen for plating. The electroless plated gold was investigated through XRD and SEM. SEM [...]

DETECHIP®: Developing a Molecular Sensing Device

Okuom M.O., Holmes A.E., Doane College, US

DETECHIP® is a detection system made of various sensors that has been shown to detect and discriminate between small molecules of interest, including various illicit drugs for and over-the-counter medications, explosives, pesticides and food spoilage [...]

Synthesis and Characterization of a Novel Palladium Nanostructured Ensemble Supported in Anodized Alumina Membranes for Hydrogen Sensing Applications

Méndez-Colberg H.G., Martínez-Iñesta M.M., University of Puerto Rico, Mayaguez Campus, US

A Pd/Anodic alumina membrane (AAM) ensemble was formed by using Solid State Reduction. The ensemble consisted of Pd thin films on both sides of the AAM with connecting nanowires as evidenced with Scanning Electron Microscopy [...]

Ultrafast Integrated Humidity and Temperature Sensor Based on Carbon Nanotubes, and a Sensor Controller System

Kayastha V., Gibbons S., Giedd R., Brewer Science, Inc, US

A flexible, resistive-type, integrated humidity and temperature sensor that is made of carbon nanotubes (CNTs) will be presented. The sensor resolution is ~1% for relative humidity and <0.5°C for temperature. The sensor response and settling [...]

Ultra-High Performance Immunosensor Prepared by Glassy Carbon Electrode Modified with Nano Gold Particles and Antibody

Assan D., Mozneb M., Lai J.C.K., Leung S.W., Idaho State University, US

In previous reports, we have successfully fabricated biosensors that could measure chemical species that are important in environmental monitoring, as well as metabolites that are indicators of the proper functioning of our body. In our [...]

Micro/Nano Patterned Integrated Electrochemical Sensors for Implantable Applications

Mujeeb-U-Rahman M., Adalian D., Sencan M., Scherer A., California Institute of Technology, US

Electrochemical sensors are very important candidates for many sensing and actuation applications. Micro/Nano scale techniques are very appealing in designing these sensors for completely integrated systems. Such systems can provide accurate and long-term measurements of [...]