US – Page 99 – TechConnect Briefs

CMOS-Compatible Thermally Actuated MEMS Viscosity Sensor with Aluminum on Silicon Membrane

Puchades I., Fuller L.F., Lyshevski S.E., Rochester Institute of Technology, US

This paper presents viscosity measurements performed on standard commercially-calibrated oils as well as to motor oils measured on a commercial cone-and-plate viscometer. Figure 2 shows the response of the sensor, in the frequency domain, when [...]

Charge Pumping for High-force, Large-displacement MEMS

Harvey IR., Baker B., Hogan A., Ford K., University of Utah Nanofab, US

Instead of making machines smaller that work well in the macro world, we envision a new class of machines that are specifically designed to take advantage of what works well in the micro-scale world. These [...]

Nanotechnology-Enabled Microthrusters:Nanoenergetic Materials and MEMS Paradigm

Puchades I., Hobosyan M., Fuller L.F., Liu F., Thakur S., Martirosyan K.S., Lyshevski S.E., Rochester Institute of Technology, US

Microthrusters are used in flight and underwater platforms. The MEMS-technology microthrusters with nanostructured energetic composites increase thrust-to-weight ratio and ensure the overall requirements. The integrated MEMS micromachining ensures fabrication simplicity, affordability, robustness, integrability, compatibility and [...]

Near-Infrared Laser Actuated Cantilevers with Wavelength-Dependent Response

Lucas T.M., James K.T., Beharic J., Moiseeva E.V., Keynton R.S., O’Toole M.G., Harnett C.K., University of Louisville, US

Development of microscale actuating technologies has been critical for interacting with natural components at the cellular level. Small-scale actuators and switches have potential in areas such as microscale pumping and particle manipulation. Thermal actuation has [...]

Aerospace Applications for Surface Acoustic Wave Devices

Wilson W., NASA Langley Research Center, US

Surface acoustic wave (SAW) technology can be used to create a variety of different sensors, including strain, chemical, pressure, and temperature. These sensors can be configured to be passive and wireless, which could be useful [...]

First-Order-Reversal-Curve Analysis of Nanoscale Magnetic Materials

Dodrill B.C., Spinu L., Lake Shore Cryotronics, US

Magnetic nanowires, nanodots and nanoparticles are an important class of nanostructured magnetic materials. These structures are ideal candidates for important technological applications in spintronics, high density recording media, microwave electronics, permanent magnets, and for medical [...]

A New Biocomposite Electrode Sensor for the Detection of Oxidative Reactions

Assan D., Gao X., Lai J.C.K., Leung S.W., Idaho State University, US

Hemoglobin has a very strong affinity with oxygen and thus is a good catalyst to carry oxygen for many oxidation reactions. Many researchers have explored this property of hemoglobin to develop sensors for the detection [...]

Use of Single Particle Inductively Coupled Plasma Mass Spectrometry to Characterize a New Silver Nanoparticle Reference Material

Murphy K.E., Liu J., Guthrie W.F., Gorham J.M., Bonevich J.E., Allen A.J., Winchester M.R., Hackley V.A., MacCuspie R.I., National Institute of Standards and Technology, US

In this study we use a conventional inductively coupled plasma mass spectrometer operated in single particle mode (spICP-MS) to simultaneously characterize the size distribution and dissolved silver fraction of a new candidate silver nanoparticle reference [...]

Magneto-optic Response of Iron Oxide Nanoparticles under Pulsed and AC Fields

Syed M., Foulkes T., Rose-Hulman Institute of Technology, US

Reliable methods for studying the magnetization dynamics of metal ferrite nanoparticles (NP) are needed, as these particles are attractive candidates for biomedical applications such as in targeted drug delivery, imaging, and magnetic hyperthermia. We investigate [...]

Amplification of Surface Acoustic Waves in Graphene Film under DC Voltage

Roshchupkin D.V., Kononenko O.V., Tynyshtykbayev K., Insepov Z., Purdue University, US

An acoustoelectric effect has been experimentally studied in a graphene film fabricated on the top of a piezoelectric crystal of the lanthanum–gallium silicate family Ca3TaGa3Si2O14 (CTGS) grown by the Czochralski method. The unit-cell parameters were [...]