Nanostructured materials have been successfully produced by electrodeposition into Anodic Aluminum Oxide (AAO) templates. Electron microscopy techniques have been used for nanoscale characterization. The structure, dimensions and chemistry of individual nanostructured materials were analyzed using SEM and TEM microscopy

This program aims at producing the next generation of molecular chemical and biological sensors [1]. Is is an interdisciplinary effort to manufacture electronic "noses" from arrays of nanostructured metal oxide sensors, each of which is specific to a given gas. Specificity in nanostructured oxides is achieved by exploiting their structure sensitivity. The ongoing research focuses on the study o...

Nanotechnology has opened new and exhilarating opportunities for exploring glucose biosensing applications of the newly prepared nanostructured materials. Nanostructured metal-oxides have been extensively explored to develop biosensors with high sensitivity, fast response times, and stability for the determination of glucose by electrochemical oxidation. This article concentrates mainly on the ...

We developed a non-lithographic technique to contact sub-100nm nanowires for spin transfer torque experiments. Co/Cu multilayers were grown by electrodeposition in nanoporous commercial polycarbonate membranes from a Co/Cu bath. A home-made sample holder allows bottom and top electrical contacts to be made to individual nanowires in the CPP geometry. Experimental evidence of the spin transfer t...

Novel capping layer structures have been deposited on periodic Mo/Si multilayers to optimize reflectance at 30.4 nm. Design, deposition and characterization of such coatings are presented. Most of the structures proposed show improved performance with respect to standard Mo/Si multilayers and are stable over time. Reflectance at 121.6 nm and in the visible spectral range have been also tested t...

Characteristics and quantum efficiencies of photocurrents at monolayer, mixed monolayers, and multilayers of chlorophyll a deposited on semiconducting SnOz electrodes and/or metal electrodes were surveyed. The quantum efficiency of photocurrent depends on the surface concentration of chlorophyll a as well as the thickness of layers. The photocurrent behavior of chlorophyll a multilayers is comp...

Transport and magnetic properties near a field-induced orientation phase transition sOPTd from the easy to the hard axis in the magnetization of antiferromagnetically coupled epitaxial fFe/Crs100dg10 multilayers have been studied. It was found that in the vicinity of the OPT both the amplitude of the magnetic susceptibility anomaly and the relaxation rate of the magnetoresistance change dramati...

We performed in situ indentation in a transmission electron microscope on Al-TiN multilayers with individual layer thicknesses of 50 nm, 5 nm and 2.7 nm to explore the effect of length scales on the plastic co-deformability of a metal and a ceramic. At 50 nm, plasticity was confined to the Al layers with easy initiation of cracks in the TiN layers. At 5 nm and below, cracking in TiN was suppres...

The cytotoxicity and metabolic effects of two thymidylate synthase (TS) inhibitors, Tomudex (Raltitrexed, ZD1694) and GW1843U89, were studied in WiDr colon cancer cells under four different growth conditions: as standard monolayers and as postconfluent multilayers grown under either high (WiDr, 8.8 mM folic acid) or low (WiDr/F, 1 nM leucovorin) folate conditions. Both GW1843U89 and ZD1694 were...