nanostructures – Page 5 – TechConnect Briefs

Valence-band Energies of GaAs/AlGaAs and InGaAs/InP V-groove [1-10] Quantum Wires

Lassen B., Lew Yan Voon L.C., Melnik R., Willatzen M., Worcester Polytechnic Institute, US

Comparison between the Burt-Foreman and Luttinger-Kohn valence-band Hamiltonians have been performed for realistic V-groove GaAs/AlGaAs and InGaAs/InP quantum wires. Significant differences in band structure is only found for InGaAs/InP quantum wires.

Actin Adsorbed on HOPG and Mica Substrates: Characterization and Manipulation by Atomic Force Microscopy

Nicolau D.V., Watson G.S., Cahill C., Blach J., Myhra S., Swinburne University, AU

We report on the fabrication of nanostructures built of actin using the Atomic Force Microscopy and molecularly organised substrata, i.e. HOPG and mica. We obtained both ‘paracrystalline rafts’ of actin adsorbed onto hydrophobic HOPG, as [...]

Modeling of Brillouin Spectrum of a Quantum Dot Crystal

Lazarenkova O.L., Balandin A.A., University of California Riverside, US

Model for simulation of the Brillouin spectra of three-dimensional regimented array of GeSi quantum dots in Si is proposed. We consider the low-energy part of the Raman spectrum that is determined by the transformed modes [...]

Nanomagnetic Materials: A review

Gupta T.K.S.P., Verma S.S., Sant Longowal Institute of Engineering and Technology, IN

Nanotechnology and nanostructured materials have the potential to significantly impact energy efficiency, storage, and production. Such applications can be used to monitor and remediate environmental problems, curb emissions from a wide range of sources, and [...]

Molecular Recognition on Demand

Sherrill C., Marshall D., Richmond C., Scherrer C., Prudent J.R., EraGen Bioscience, Inc., US

DNA is the only chemistry that allows for ?molecular recognition on demand?. That is, unlike any other molecular recognition chemistry, DNA allows for the simple design and rapid synthesis of molecule sets that will recognize [...]

Nanomanipulation and Characterization of Individual Carbon Nanotubes

Ruoff R., Northwestern University, US

A new tool that operates in a scanning electron microscope for measuring the mechanics of nanostructures is briefly presented, and its use to measure the response to tensile loading of carbon nanotubes is outlined.