Nanoscience & Nanotechnology-Asia - Volume 3, Issue 1, 2013

The performance and reliability of energy storage systems largely depend on the characteristics and properties of the electrode materials that constitute the system. Nanostructured materials have greatly influenced the overall performance of these systems by enhancing surface processes and improving the transport kinetics of the ions/molecules involved. Vanadium based materials have received considerable attention, pa Read More

Carbon nanostructures have become one of the most exciting and rapidly expanding research topics since the discoveries of fullerene and carbon nanotubes. In particular, carbon nanotubes, graphene, and mesoporous carbons are the most important classes of carbon nanostructures in terms of synthesis and practical applications. Due to their excellent chemical, physical, mechanical, and electrical properties, carbon nanostru Read More

Nanodimensional materials such as transition metal oxides, polyanionic based materials and metal fluorides can be used as cathode while metal nanoparticles, alloys and metal oxides are preferred as anode for next-generation lithiumion batteries (LIBs) in order to obtain high reversible capacity, rate capability, safety, and longer cycle life. These nanomaterials can offer relatively short ionic and electronic pathways which Read More

Lithium ion batteries are the key components of the portable, entertainment, computing and telecommunication equipment required by today's information-rich and mobile society. Highly flexible batteries would free product designers from the constraints of rigid and predetermined forms. In addition, powerful and light-weight batteries made from inherently safe materials could facilitate quickly advance development of electri Read More

Nanomaterials are receiving great attention in terms of research and development over the past few years in Polymeric Electrolyte Membrane (PEM) for Fuel Cells and Electrolyzers applications. The addition of inorganic nanofillers (SiO2, ZrO2 and TiO2), clays (montmorrillonite, bentonite, etc.), heteropolyacids (including cesium salts) and carbon nanotubes to the membrane structure have demonstrated to be ways of enha Read More

To optimize the utilization of thermal conversion systems, it is essential to integrate them with thermal energy storage. Among many types of base materials, the phase change materials are the most satisfactory mediums to store and release the thermal energy due to their high latent heat of fusion. In general, the phase change materials have low thermal conductivity. Nanoadditives have been investigated to further enhance Read More

A significant proportion of drugs present in market, are poorly soluble. Formulation development of these drugs is also a demanding challenge. Nanosuspensions have revealed their potential to problems, associated with poorly soluble drugs. Media milling and high pressure homogenization techniques have been used extensively for producing the nanosuspensions. This article reviews the various aspects related to nanosusp Read More

It is new approach to combine one or multiple drugs onto the same drug-delivery nanocarrier in accurately controllable manner, by covalently preconjugating one or multiple therapeutic agents by covalent bond to form drug conjugates. It provides the advantages of nano size system with the targeted delivery of drug with great precision. The conjugation system allows the modification in the metabolic path way in the bloo Read More

Quantum dots (QDs) are a landmark development in the field of nanotechnology. These zero-dimensional semiconductors, unlike their physical attributes, have enormous capacity to store energy within themselves. This energy is contained in several thousands of electrons that constitute the nanoparticles. QDs are synthesized by both organic and inorganic methods, the choice being dependent upon the desired efficacy of Read More

Crop protection against insect pest is a priority and due to the adverse impact of chemical insecticides, use of biopesticdes is increasing. Bacillus thuringiensis (Bt) based biopesticides have utmost importance and occupy almost 97% of the world biopesticide market. Environmental contamination, food safety concerns, and pest resistance to conventional insecticides have caused a steady increase in demand for Bt-b Read More

Carbon Nanotube Field-Effect Transistor (CNTFET) is a promising candidate for future electronic devices, so it is used for both analog and digital circuit application. This paper presents a Verilog-A implementation of a physical compact model for the Conventional Carbon Nanotube Field Effect Transistor. This device is then used to design a carbon nanotube FET based Operational Amplifier (Op Amp). The CNTFET Op Amp perfor Read More

TiO2-Al2O3 composite material was prepared by a sol-gel method using a sol mixture derived from tetrabutyl titanate and aluminium isopropoxide. Crystalline structure, surface morphology, composition, BET surface area, and pore size distribution of the samples were characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM), Xray photoelectron spectroscopy (XPS), Fourier transform infrared spectroscopy Read More

Magnetic MnFe2O4 with functionalized graphene (MnFe2O4-G) was prepared by solvothermal treatment of inorganic salts with graphene oxide as a starting material. The as- prepared product was then characterized by using X-ray powder diffraction (XRD) and Field Emission Scanning electron microscopy (FE-SEM). FE-SEM observations show that manganous ferrite nanoparticles with sizes of 10-40 nm were well dispersed on gr Read More