US – Page 351 – TechConnect Briefs

Interfacial Properties of Carbon Nanotube Arrays

Zalamea L., Pipes R.B., Purdue University, US

The present study springs from the investigation of Salvetat et al.4 wherein the ratio of flexural deformation to applied load of the carbon nanotube array was used to determine a reduced Young’s modulus and effective [...]

Nanotube in a periodic potential: A conveyer belt for electrons

Novikov D.S., Princeton University, US

We consider a carbon nanotube in the presence of an externally appliedperiodic potential. We show that, as a function of gate voltage that controls electron density (counted from the half-filled pi-band), the electron states can [...]

Exfoliated Graphite Nanoplatelets (xGnP): A Carbon Nanotube Alternative

Drzal L.T., Fukushima H., Michigan State University, US

Nanocomposites are opening up ‘windows of opportunity’ for new applications of polymers to not only structural but also non structural areas by providing ways to tailor surface, electrical, thermal and barrier properties. The choices of [...]

Application-Specific Detonation Nanodiamond Particulate

Shenderova O., McGuire G., Petrov I., Spitsyn B., Puzur A., Kuznetsov V., International Technology Center, US

We will discuss several approaches to DND modification and surface functionalization that results in particles sizes ranging from tens to hundreds of nanometers that are stable in a variety of solvents. DND specific for biological [...]

Self-Welded Metal-Catalyzed Carbon Nanotube Piezoresistors with Very Large Longitudinal Piezoresistivity of ~ 4×10-8 Pa-1

Tabib-Azar M., Wang R., Xie Y., Case Western Reserve University, US

Self-welded multi-walled carbon nanotube (MWCNT) bridges, grown using low-pressure metal-catalyzed chemical vapor deposition technique between silicon posts, were used as tiny piezoresistors to monitor vibration and bending/deformation of silicon cantilever beams for the first time. [...]

Gated Chemical Transport and Enhance Flow through Carbon Nanotube Membranes

Majumder M., Chopra N., Hinds B.J., University of KY, US

A promising architecture for ion-channel mimetics is a composite membrane structure containing vertically aligned carbon nanotubes, with inner core diameters of 7 nm, passing across a polystyrene matrix film. Plasma oxidation during the fabrication process [...]

Separating Single-Walled Carbon Nanotubes by Length

Rauwald U., Schmidt D.J., Hauge R.H., Smalley R.E., Ziegler K.J., University of Florida, US

Single-walled carbon nanotubes (SWNTs) have received great attention because of their unique electronic and mechanical properties combined with their chemical stability. Typically, SWNTs are microns in length; however, intermediate lengths between small spheroidal fullerenes and [...]

The Impact of Patent Reform on Nanotechnology: File Early and File Often

Featherstone D.J., Messinger M., Specht M.D., Sterne, Kessler, Goldstein & Fox, US

2005 could have be remembered as the year with the most significant changes to United States patent law since the Patent Act of 1952. The proposals to update U.S. patent law would substantially change the [...]

Addressing 3rd-Party Patent Protection in the Product Development Process

Weseman S., IP Focus Law Group, Ltd., US

Third-party patent protection can be an obstacle to product development and introduction. Some development efforts completely ignore patent issues until a late-term crisis arises. Identified too late in the product development cycle, patent issue may [...]

Exfoliated Graphite Nanoplatelets [2] Surface Treatment

Askeland P.A., Fukushima H., Do I-H, Kalaidzidou K., Drzal L.T., Michigan State University, US

Since the late 1990’s, research has been underway in our group at Michigan State University to investigate the fabrication of new nano-size carbon material, exfoliate graphite nanoplatelets [xGnP]. The xGnP is fabricated from natural graphite [...]