In exploiting nanostructures for applications such as energy devices, conformal coatings are playing an increasingly crucial role. Atomic layer deposition (ALD) is receiving responsibility for the most demanding deposition in nanotechnology, especially in terms of conformality due to its self-limiting surface reactions. In this work, we investigate the effects of reactant dosage on deposition r...

The permeation fluxes of phenol, benzene sulfonate (BS) and benzene disulfonate (BDS) through a porous anodic alumina membrane with the perpendicularly oriented silica-surfactant nanochannel assembly membrane (NAM) were measured in water-ethanol mixture media. The permeation flux depended on solute charges and on solvent composition. As the ethanol ratio increased, the fluxes of BS and BDS incr...

Film, nanorods (NRs), nanowires (NWs), and nanoparticles (NPs) of perylene-3,4,9,10-tetracarboxylic dianhydride (PTCDA) were prepared by organic molecular beam deposition (OMBD) on porous anodic alumina oxide (AAO) at different substrate temperatures (Ts). Scanning electron microscopy (SEM) study showed that the morphologies of the nanostructures (NS) formed on AAO strongly depend on the Ts. Th...

Reagents. β-D-(+)-glucose, ascorbic acid (AA), uric acid (UA) and p-acetamidophenol (AP) were purchased from Sigma and used as received. Porous anodic alumina (PAA) membranes with the pore sizes of 20 and 100 nm were from Whatman Corporation. The quoted pore diameters of the PAA membranes were 20 and 100 nm, but actually, according to the SEM image of the PAA membrane, there was a pore diameter...

We present a software package called Microscopy Image Segmentation Tool (MIST). MIST is designed for analysis of microscopy images which contain large collections of small regions of interest (ROIs). Originally developed for analysis of porous anodic alumina scanning electron images, MIST capabilities have been expanded to allow use in a large variety of problems including analysis of biologica...

Nanogenomics and nanoproteomics allow the study and comparison of the huge number of genes and proteins involved in the cell cycle progression of human T lymphocytes and in its transformation in lymphoma. Nanogenomics has, however, many pitfalls that only functional proteomics, called nucleic acid programmable protein array (NAPPA), is capable of overcoming by probing with unique sensitivity na...

A method of fabrication AAO film in 0.3 mol/L H2C2O4 by adding 1,2-propanediol(PROH) and at sub-zero temperature has been proposed. The electrochemical characteristics the barrier porous layers films before after pore-filling are examined using impedance spectroscopy (EIS). It is shown that high medium frequency range corresponds to layer properties low ranges reflect sealed properties. calcula...

Previously, we studied the anodization of aluminum by adding alcohol to common acidic electrolytes with a focus on film formation efficiency and hardness anodic oxide film. In this study, difference in carbon number monohydric alcohols select propanol as an additive confirm whether effects behavior growth rate are universal regardless type. The tendency concentration dependence conductivity vis...

Porous alumina film on aluminum with gel-like pore wall was prepared by a two-step anodization of aluminum, and the corresponding gel-like porous film was etched in diluted NaOH solution to produce alumina nanowires in the form of densely packed alignment. The resultant alumina nanowires were reacted with NH(3) and evaporated aluminum at an elevated temperature to be converted into densely pack...

The growth of ordered nanorods of mesoporous SBA-15 inside a porous alumina membrane has been achieved for the first time by a simple sol-gel method. The obtained SBA-15 nanorods themselves have ordered hexagonal mesochannels with a size of about 6 nm and have been arranged to form hexagonal arrays by the limitation of pores of the alumina membrane. The synthesized alumina membrane with mesopor...