US – Page 366 – TechConnect Briefs

Simplified Crossover Droplet Model for Adsorption of Critical and Supercritical Fluids in Slit Nano-Pores

Kiselev S.B., Ely J.F., Colorado School of Mines, US

We present a a simplified crossover droplet (SCD) model for the excess adsorption of pure fluids at a flat solid-liquid interface in the volume and slit nano pores, which reproduces scaling behavior of the excess [...]

Recent Advances in the Characterization of Free Volume in Model Fluids and Polymers: Shape and Connectivity

Willmore F.T., Sanchez I.C., University of Texas, US

The solubility and diffusivity of a penetrant species in an amorphous material are determined by the nanoscale properties of its free volume. Positron Annihilation Lifetime Spectroscopy, mechanical measurements of equation of state behavior, and Voronoi [...]

Microfabrication of 3D Structures Using Novel Thermoplastic Elastomers

Sudarsan A.P., Wang J., Ugaz V.M., Texas A&M University, US

We demonstrate the use of novel thermoplastic elastomers synthesized by dissolving readily available polystyrene–(polyethylene/ polybutylene)–polystyrene (SBS/SEBS) triblock copolymers (e.g., Kraton™ G series) in hydrocarbon oils for which the ethylene/butylene midblocks are selectively miscible. The insoluble [...]

Metal-oxide Nanowires for Toxic Gas Detection

Devineni D.P., Stormo S., Kempf W., Schenkel J., Behanan R., Lea S., Galipeau D.W., South Dakota State University, US

The objective of this work was to determine the feasibility of using EFEO to fabricate indium-oxide nanowires that could be used for sensing NO2 and O3. The effects of fabrication parameters such as indium film [...]

Fabrication of Silicon Nanowires Using Atomic Layer Deposition

Gopireddy D., Takoudis C.G., Gamota D., Zhang J., Brazis P.W., University of Illinois at Chicago, US

We will present the synthesis of silicon nanowires using Atomic Layer Deposition (ALD) technique. ALD allows the growth of nanowires in a controlled fashion using the nanoparticles as the seed. The diameter and the length [...]

Absolute Pressure Measurement using 3D-MEMS Technology

Russell R., Meriheinä U., VTI Technologies, US

The use of 3D-MEMS processes has created yet another new breakthrough. Extremely small silicon capacitive absolute pressure sensors can now be realized by utilizing the same MEMS technology that has been in production for many [...]

Microfabricated Silicon Apertures for Ion Channel Measurement

Wilk S.J., Goryll M., Petrossian L., Laws G.M., Goodnick S.M., Thornton T.J., Saraniti M., Tang J.M., Eisenberg R.S., Arizona State University, US

Ion channels are proteins that act as pores in cell membranes and allow only specific ions to pass through the cell wall. Here, we present a method for microfabrication of apertures in a silicon substrate [...]

Diode Laser Welding of Planar Microfluidic Devices, BioMEMS, Diagnostic Chips & Microarrays

Chen J-W, Zybko J., Clements J.T., NanoSciences, Inc., US

As polymer-based microfluidic devices, lab-chips and diagnostic platforms are pushed towards increasingly smaller geometries, advances in diode laser technology now allow for cleaner and more precise assembly. Coupling the use of photolithographic methods and mask-sets [...]

Development of Self-Assembled Robust Microvalves with Electroform Fabricated Nano-Structured Nickel

Li B., Chen Q., University of Central Florida, US

The microvalve for the hydraulic actuatora need large flow rate (>10 cc/second, displacement related), high-pressure support ability (>10 MPa) and a high operational frequency (>10 kHz) [1, 2]. Microvalves can match the piezoelectric material’s frequency, [...]

A Gate Layout Technique for Area Reduction in Nano-Wire Circuit Design

Hashempour H., Lombardi F., LTX Corp., US

An strategy for developing integrated circuits with many individual nanodevices has yet to be formulated. This paper presents an homogeneous (array-based) approach for designing and manufacturing digital circuits using nanotubes or nanowires. By targeting contacts [...]