interfaces – TechConnect Briefs

Fluorescent-Plasmonic Quantum Dot-Gold based Nanohybrids: Basic Research for Next Generation Materials and Tracking of Biological Events

Merkl J.-P., Schmidtke C., Aldeek F., Safi M., Strelow C., Feld A., Kloust H., Heidari H., Bals S., Lange H., Mattoussi H., Weller H., University of Hamburg, DE

A novel hybrid nanoparticle is presented based on encapsulated fluorescent CdSe/ZnSe/ZnS core/shell/shell quantum dots (QDs) with zwitterionic capped gold nanoparticles (AuNPs). This hybrid is fully characterizes by variouse techniques including optical spectroscopy, (cryo) transmission electron [...]

Nano-mapping Material Interfaces via Hot Electrons

Goh K.E.J., Troadec C., Institute of Materials Research and Engineering, SG

As devices shrink below 100 nm in size, nanoscale imperfections (due to defects and doping) at material interfaces become significant perturbations to ideal device characteristics and in some cases can dominate the device behavior. Of [...]

The Austrian NANO Initiative: Small Country with Strong Expertise

Haas M., Glenck E., Austrian Research Promotion Agency (FFG), AT

The Austrian NANO Initiative is the multi-annual public funding programme for nanoscale sciences and nanotechnology. It coordinates different action lines at national and regional levels. The Austrian Research and Promotion Agency (FFG) runs the programme [...]

Electronic Structure and Transport in Biological Inorganic Hybrid Materials

Pandey R.R., Bruque N., Lake R.K., University of California Riverside, US

Chemical and biological hybrid organic-inorganic nanotechnology holds the promise to provide new capabilities for manufacturing functional nanosystems for a wide range of applications in engineering and biotechnology. We report fundamental studies used to model bio/inorganic [...]

Overview of Overlapping Bio and Nano Technologies

Iyer S., LANL, US

“What is the connection between nanoscience and biology?” “What are biologists doing at Nanotech 2004 and why do you have so many “bio” related sessions?” “So biologists are also jumping on the nanoscience bandwagon.” These [...]

Molecular Dynamics Simulations on Nanocomposites Formed by Intermetallic Dispersoids of B2 Structure and Aluminum Matrices

Namkung M., Paik S., Wincheski R.A., NASA Langley Rsearch Center, US

Molecular dynamics simulations were performed in order to characterize the local lattice structure in the vicinity of the interfaces between nanosized B2 intermetallic aluminide dispersoids and aluminum matrices. The dispersoid materials selected for the present [...]

Chemically Functionalized Clay Epoxy Nanocomposites for Aerospace Applications

Balakrishnan S., Raghavan D., Howard University, US

Reinforcement of polymeric resin with nanoclay platelets has resulted in lightweight materials with enhanced mechanical and thermal properties. The selection of clay as reinforcing material is extremely appealing because of cost, high thermal inertness, and [...]

Next Generation Aerospace Composites Through Nanotechnology

Yebassa D., Balakrishnan S., Raghavan D., Howard University, US

Polymeric nanocomposites are a relatively new class of materials obtained by dispersing inorganic layered silicates in polymer matrix. Generally well-dispersed exfoliated morphology of clay platelets in nanocomposite is sought with the expectation that this would [...]

Optimizing Processing Conditions to Influence the Morphology of Nanocomposite

Raghavan D., Balakrishnan S., Gebrekristios Y., Howard University, US

In recent years, the area of nanocomposites has received considerable attention with the expectation that nanotechnology can lead to lighter, better materials for engineering applications. For example, the attractiveness of polymer-clay nanocomposites resides in the [...]

Nanoscale Bio-Molecular Control Using EC-OWLS

Bearinger J.P., Vörös J., Spencer N.D., Hubbell J.A., Textor M., ETH Zürich/ Lawrence Livermore National Laboratory, US

A new technique has been developed that combines evanescent-field optical sensing with electrochemical control of surface adsorption processes. This technique, termed Electrochemical Optical Waveguide Lightmode Spectroscopy (EC-OWLS), proved efficient in monitoring molecular surface adsorption and [...]