US – Page 79 – TechConnect Briefs

Modeling of spontaneous phase separation in nanomaterials and confined systems with electron correlations

Kocharian A.N., Fang Kun, Fernando G.W., Balatsky A., California State University Los Angeles, US

The modeled of many body physics and possible spontaneous phase separation instabilities in various two-dimensional square and honeycomb structures (generated by periodically repeated Betts lattices) provide an ideal playground for understanding of various competing phases [...]

Synthesis of Reduced Graphene Oxide Films using Atmospheric Plasma and Furnace Annealing

Ayler R., Tong Y., Ramabadran U., Zhou X., Ryan G., Farhat S., Kettering University, US

Graphene oxide (GO) is an electrical insulator with good mechanical and thermal properties. It exhibits increased conductivity when the Carbon to Oxygen ratio is high. Our work aims to efficiently fabricate inexpensive flexible reduced graphene [...]

Maskless Lithography of Nanometer-Scale Circuit Structures in Supported, Single-Layer Graphene Using Helium Ion Microscopy

Rondinone A., Iberi V., Matola B., Linn A., Joy D., Oak Ridge National Laboratory, US

Here we will discuss the utility of scanning helium ion lithography for fabricating conducting graphene structures that are supported directly by silicon oxide. The lithography is performed in a single step, dry, using high-resolution He- [...]

Application of chemiluminescent resonance energy transfer and graphene sheet for the rapid quantification of mercury in a sample

Kwon M., Park Y., Lee J-H., Lee S-Y, Kim Y.T., Lee J-H., Lee S-Y, Luminescent MD, LLC, US

Using intra chemiluminescent resonance energy transfer (CRET) between DNA aptamer and fluorescein and physical property of graphene sheet, cost-effective and simple biosensor was developed for the rapid quantification of Hg2+ in a sample. The limit [...]

Pulsed Laser Annealing of Nanocarbon Materials

Vander Wal R.L., Gaddam C.K., Penn State University, US

Pulsed laser annealing of nanocarbons, with focus upon soot was performed using a Nd:YAG laser operating at 1064 nm and laser fluence of 250 mJ/cm2. A gated intensified CCD captured the spectra of the material [...]

Single Wall Carbon Nanotube Inhibition of DNA Damage

Nelson B.C., NIST, US

Carbon nanotubes (CNTs) are remarkable materials in terms of their enhanced thermal and electrical conductivities, tensile strengths and mechanical properties. However, our understanding of the potential environmental, health and safety risks of these novel nanomaterials [...]

Silver coated carbon nanotubes regulate virulence gene expression in Salmonella Typhimurium

Chaudhari A.A., Singh S.R., Pillai S., Alabama State University, US

Silver coated carbon nanotubes (AgCNTs) have several biomedical applications and their antibacterial activity against several multi drug resistant pathogens is well documented. However, the exact molecular mechanism for their antibacterial activity is yet to be [...]

Layer-on-layer Assembly of Macroscopic 2D and 3D Carbon Nanomaterial Architectures

Patel S.C., Lalwani G., Alam O., Grover K., Qin Y-X, Sitharaman B., Stony Brook University, US

Although carbon nanomaterials are often labeled as the future replacement for silicon in electronics and a new generation of robust materials, there are major shortcomings in the assembly of carbon nanomaterials into higher order structures. [...]

SWCNT vs MWCNT and Nanofibers. Applications in lithium-ion batteries and transparent conductive films

Predtechenskiy M., Bezrodny A., Bobrenok O., Kochnev A., Kosolapov A., Krechetova N., Saik V., OCSiAl LLC (OCSiAl Group), US

Among the most promising applications of carbon nanotubes are their use as additives in electrode material of lithium-ion batteries and in the production of flexible transparent conductive films. Experiments with various types of cathode materials [...]

Advanced Aerospace Applications for Carbon Nanotube Materials

Schauer M.W., Nanocomp Technologies, Inc., US

The use of floating catalyst chemical vapor deposition to make carbon nanotube (CNT) materials for aerospace structures overcomes the need for dispersants, and allows for products that consist mostly of nanotubes. CNT-based material is currently [...]