Micro and Nanosystems - Volume 5, Issue 4, 2013

Transparent conductive ZnO:Al:Mo films with a constant molar ratio of Zn: Al: Mo=99:0.99:0.01 were deposited on quartz glass substrate by a template-assisted sol-gel process and characterized by X-ray diffraction, atomic force microscopy, and UV-vis and luminescent spectrophotometries. The organic templates in precursor solution have induced the formation of nanorod microstructure with different Read More

This paper presents analytical modeling of slip liquid flow in parallel-plate microchannels, and can be divided in two parts. In the first part, classical relationships describing velocity, flow rate, pressure gradient, and shear stress are extended to the more general cases where there exist two different values of the yet-unknown slip lengths at the top and bottom walls of the channel. These formulations can be used to experime Read More

Mn vanadate microrods have been synthesized via a simple hydrothermal method using Mn acetate and sodium metavanadate as the raw materials, polyvinyl pyrrolidone (PVP) as the surfactant. X-ray diffraction (XRD) and scanning electron microscopy (SEM) observations show that the Mn vanadate microrods are composed of monoclinic MnV2o6 phase. The diameter of the microrods increases from 250 nm to 1µm with Read More

Electrochemical machining has the potential to allow machining at the nanometer scale. A nano electrode is an essential tool in nano-electrochemical machining. In this paper, the mechanism of liquid membrane electrochemical etching is studied, and a processing platform is developed. The processing voltage, initial tungsten diameter and electrolyte concentration are control factors in nano electrode fabricat Read More

Three different power densities and fixed irradiation times have been used to prepare porous silicon using laserinduced etching process to control the size and shape of nanostructure. There are new optical properties of porous silicon. Scanning electron microscopy was used to study surface morphology after the etching process. Porous silicon was characterized using spectroscopic studies. There is shift in Raman peak positio Read More

Nanotechnology is the study, design, creation, synthesis, manipulation, and application of functional materials, devices, and delivery systems through control of matter at the nanometer scale. These include nanovectors, nanotubes, nanosensors, nanowires and nanocantilever arrays, nanopores and nanoformulations. These advances will lead to significant applications relevant to the diagnosis, management, and in the Read More

The advent of nanotechnology has reignited interest in the lungs as a major route of drug delivery for both systemic and local treatments. As the end organ for the treatment of local diseases or as the route of administration for systemic therapies, the lung is a very attractive target for drug delivery. The large surface area and the minimal barriers impeding access to the lung’s periphery make this organ a suitable portal for a Read More

Shear- and pressure-driven gas flows are encountered in several Micro-Electro-Mechanical-Systems (MEMS) applications, where the fluid is usually trapped under or around the vibrating micromechanical structure in extremely narrow gaps. The thin gas film is responsible for damping in these oscillating microstructures and its properties are of great importance to design, optimize and fabricate improved minute devices. Under Read More