Sensors – Chemical, Physical & Bio – Page 2

Solvent-free Printing of Organic Semiconductor, Insulator, Metal, and Conductor Particles on Flexible Substrates

Sakai M., Okada Y., Horiuchi Y., Suzuki M., Tomiya D., Chiba University, JP

Multi-material and solvent-free printing for printed electronics is developed using toner-type patterning of organic semiconductor, insulator, metal and other con- ductor particles, and the subsequent thin-film formation by ultrasonic sintering. Although conventional toner technology was [...]

Wearable IoT Devices for Health Monitoring

Bhat G., Tuncel Y., An S., Ogras U.Y., Arizona State University, US

Advances in wearable electronics pave the way for a new class of devices that combine sensing, process- ing, and communication. These devices enable a wide range of applications including health monitoring, ac- tivity tracking, and [...]

Chemical-Free Metal PDMS Thermal Bonding in Flexible Bio-Potential Electrode Fabrication

Koh D., Wang A., Oh K.W., University at Buffalo, US

The flexible bio-potential electrode is gaining signifiacnt interest in wearable or implantable biosensors. Among many soft materials, polydimethylsiloxane (PDMS) is widely studied because of its good biocompatibility and elasticity. However, due to the nature of [...]

Resistive Pressure Sensor with Carbon Nanotube Electrodes towards Flexible Electronics Applications

Palumbo A., Zhang R., Yan K., Yang E.H., Chen S., Hader G., Chang J., Yang E.H., Stevens Institute of Technology, US

Here, we present a flexible and stretchable pressure sensor composed of vertically aligned CNTs (VACNTs) partially embedded in a polydimethylsiloxane (PDMS) substrate. VACNTs were grown via chemical vapor deposition and transferred onto PDMS as a [...]

Compact Modeling of MEMS Contact Current upon Pull-In

Røst H.I., Clark J.V., Pister K.S.J., Auburn University, US

This work-in-progress presents a parameterizable compact model of a microelectromechanical system (MEMS) beam element that includes mechanical contact and electrical current flow upon gap closure. Quasistatic electromechanical simulation analyses include the initial onset of pull-in [...]

Wideband high-Q nonlinear resonance for MEMS

Clark J.V., Han Y., Abrol A., Zun Z., Auburn University, US

We examine high quality factor (Q) nonlinear wide- bandwidth resonance for microelectromechanical systems (MEMS) by mimicking high nonlinearity in stiffness by force feedback. The Q and bandwidth are usually thought of as being inversely proportional [...]

Towards In-Vivo Radio Transmitting Nano-Robots

Dolev S., Narayanan R.P., Ben-Gurion University of the Negev, IL

An implementable design of a Nano Electro Mechani- cal (NEM) Carbon Nanotube (CNT) cantilever for com- munication in nanorobots is sketched in this brief sum- mary. Nano communication devices can provide future nanorobots with the [...]

Low-Latency Analog Processors for Performance Control of MEMS

Han Y., Zhu Z., Abrol A., Clark J.V., Auburn University, US

Towards faster feedback response for controlling the performance of microelectromechanical systems (MEMS), we present the first use of the mathematical processing properties of bipolar junction transistors (BJT) for such control. This concerns a type of [...]

A Piezoresistive MEMS Memory Device Using a Buckled Beam

Yang J.A., Shuvra P.D., Lin J-T., Walsh K., McNamara S., Alphenaar B., University of Texas at Austin, US

Microelectronics and microelectromechanical systems (MEMS) have given rise to a large class of new de- vices, from ultra-miniature sensors for cell phones and automobiles to complex memory devices for computers. Recent research in memory devices [...]

A More Accurate and Precise Method to Calibrate Atomic Force Microscope (AFM) Cantilevers

Clark J.V., Auburn University, US

This paper presents a method for using a calibrated microelectromechanical system (MEMS) device to calibrate an atomic force microscope (AFM) cantilever. Measure- ments of stiffness and deflection can be made with quantifiable uncertainty. The popular [...]