Sol-gel

Abstract: With the emergence of more novel and effective drug therapies, increased importance is being placed upon the methods by which these drugs are being delivered to the body. Different methodologies have been heavily investigated as possible solutions , one of these methods are intelligent or ‘Smart polymeric drug-delivery systems’. “Stimuli responsive” and “self regulating” drug delivery systems have captured the imagination of researchers, in large part because they suggest a means to mimic

In 1991 major breakthrough has come in the field of photovoltaic technology known as dye-sensitized solar cells (DSSCs) [1]. This kind of solar cells is low-cost and simple functioning together with their advantageous characteristics (e.g. lightweight, flexible, low toxicity and good performance in diverse light conditions) [2]. Usually consists of dye-adsorbed nanostructured metal oxide film served as a photoanode, a Pt-coated counter electrode and liquid electrolyte injected between them [3]. Light

In 1991, a major breakthrough has come in the field of solar photovoltaic known as dye-sensitized solar cells (DSSCs) [1]. This kind of solar cells possess low-cost and simple functioning together with their advantageous characteristics such as lightweight, flexible, low toxicity and good performance in diverse light conditions [2]. Usually DSSC’s consists of dye-adsorbed nanostructured metal oxide film serving as a photoanode, a Pt-coated counter electrode and liquid electrolyte injected between

Learning makes a man fit company for him”. This maxim impressed me right from my childhood days to learn something new each day, learn, learn and relearn until my end. My decision to apply for MS polymer engineering has emerged, both from my passion for research and my aspiration to understand the language of energy generation. I felt polymer engineering footholds the entire world. This makes it one of the most challenging fields of the present generation. It has the power to create novel designs

1  Study Guide for Lectures 8/24, 8/26, 8/31, and 9/2 Note: It is highly suggested that you reference the figures/figure legends shown in class to further help you understand class material. The Genome Project (~92% complete): • 20,000-28,000 genes in the human genome o The genome was found using a shotgun sequence. o 10% of the genome is Long Intersperse Nuclear Elements (=LINEs). This leaves the questions as to which part of the genome are LINEs?  80,000-120,000 proteins in a cell.  200,000-2

with air at 150 degree Celsius. A checking about the effective regeneration is made by verifying the Silica gel indicator through the sight glasses, as well as by verifying the outlet temp., of the regeneration air on the recording thermometer. When the regeneration is accomplished the silica gel mass has a temperature quite near 150 degree Celsius. Therefore it is necessary to cool the silica gel thus allowing it to adsorb the humidity of the air crossing it. Note – The four way valves are provided

3.7 Age-related macular degeneration 3.7.1 Cause of disease and treatment AMD is the most commonly seen age-related ocular disease in the western world, is most prevalent in those over 55 years of age, and results in visual deficits [81, 92-94]. AMD can be divided into two categories: atrophic (as known as dry AMD, 90% prevalence) and exudative (wet AMD, more severe) AMD. Dry AMD is a consequence of drusen accumulation, and the wet form is associated with abnormal angiogenesis (Figure 3). Currently

Preparation and Characterization of Electrospinning Fluorine-doped Tin Oxide for Solar Applications. Shaker Ebrahim, Marwa Adel a, Moataz Soliman Department of Materials Science, Institute of Graduate Studies and Research, Alexandria University, P.O Box 832, Egypt a Department of Physics, Faculty of Science, Alexandria University, Egypt Abstract Transparent conductive films of fluorine doped tin oxide (FTO) electrospun on glass substrate were prepared. These transparent conductive films were prepared

Ethoxysilyl- modified hyperbranched polyester as an effective hydrophob agent in miniemulsion polymerization Saber Ibrahim1 and Hamed Elsayed2 ABSTRACT: Hydrophobe agent, modified aliphatic-aromatic hyperbranched polyesters aaHBP were synthesised by melt polycondensation reaction of Diphenolic acid as AB2 type monomer with 4 drops of dibutyltin diacetate with mechanical stirrer, a gas inlet and an outlet. The polycondensation was done in two steps, first in a N2 stream and second applying vacuum

A nanoparticle is the most basic component in the construction of a nanostructure. In general, the size of a nanoparticle spans the range between 1 and 100 nm. The properties of many conventional materials change when formed from nanoparticles. This is typically because nanoparticles have a greater surface area per weight than larger particles which causes them to be more reactive than other molecules. Self-assembly refers to the process by which nanoparticles or other distinct components spontaneously