Nanoparticle

the wavelength, Rayleigh scattering is produced. Mie scattering is also an elastic light scattering in case the particles are larger than the incident wavelength of light. Elastic light scattering (ELS) is a powerful technique to characterize nanoparticles. The particle morphology, such as aggregate size, gyration radius, and fractal dimension can be estimated by ELS \cite{Sorensen}. Many researchers have used ELS to determine the soot aggregate morphology in combustion processes…

The development of new drug discovery technologies like high throughput screening, combinatorial chemistry, etc. has led to the discovery of a large number drugs that are poorly water soluble.(1,2) Approximately 40% of the NCEs are poorly water soluble and has poor bioavailability.(3) The successful clinical use of these molecules requires the application of solubility enhancement based formulation approaches. Among the various solubility enhancement technique like use of cosolvents,…

Humans have been selectively breeding and cross breeding plants and animals almost as long as agriculture has been around. Recent advances in technology have allowed for people to modify an organism’s DNA in a way that would not occur naturally. GMO stands for genetically modified organisms, organisms that have been altered at the gene level. The main reason that GMO’s were created is for food for human consumption and medicine. With the increase in the world’s population and the hope for new…

This new innovative technology from Oxford University, involves the use of a hydro-deoxygenation catalyst using supported noble metal nanoparticles. [8] Catalysts are extensively used in industry to facilitate and speed up chemical reactions. Hydro-deoxygenation is a reaction that can give alkanes as a final product that can be used directly as a fuel in conventional engines. This happens…

ABCD listing and ABCD framework are two models of qualitative [54-60] and quantitative ABCD analysis [61-67] respectively. In this section, we have used ABCD analysis for qualitative listing of advantages, benefits, constraints and disadvantages from business service providers and customer’s point of view. Advantages : (1) Nanotechnology solar cells are expected to be highly efficient in conversion of light into electricity, easy to large scale fabrication and maintenance for business service…

field effect transistors can be used as NO gas sensor with a detection limit of 0.8 ppm [16]. Flexible MoS2 TFT array on polyethylene terephthalate substrate shows high sensitivity towards NO2 sensing. In addition, functionalization of MoS2 with Pt nanoparticle was found to promote gas sensing activity three times higher with the detection limit of 2 ppb [17]. The MoS2 film synthesized by sulfurization of sputtered Mo-thin film was found to be useful for detection of NH3 in sub-ppm level [18].…

5.4. Electrosensitive hydrogels Hydrogel swells in response to an electrical stimulus with a mechanism very similar to pH, experiences shrinkage, and bending. The major difference between electrical and pH stimulations is that the electric field moves mobile ions in order to regulate an ion concentration gradient through the hydrogel and the solution [54,55]. Polymeric networks containing ionizable groups can have important electrical behavior under an electric field. The electrosensitive…

3.1. Types of solar cells There are 3 main types of commercially available cells: 3.1.1Mono crystalline Silicon PV& Polycrystalline Silicon PV The occupational health issues are associated to chemical burns and inhalation of fumes from hydro fluoric acid (HF) and other solutions of acids (e.g., HNO3) and alkalis (e.g., NaOH) used for cleaning wafers ,removing complete oxide layer, and cleaning the reactor. Performing the slicing of wafers also results in solid waste for example (e.g.,…

Approach: The specific aim of this Phase I project is to establish the technical merit and feasibility of detection of HCV RNA using an innovative assay called TARA. The overall work principles and design of the assays are shown in Figure 1. We will use peptide nucleic acid (PNA)-based probes to investigate in detail the signaling power and the selectivity of a transfer reaction (Figure 2). PNA is a chemically and biologically stable DNA analogue that combines an increased affinity towards DNA…

Nanoparticles for Cleaning: Principles and Practice Cleaning is very often one of the first steps in the work of wall painting conservation. This process should be easily applicable, the action of the cleaning agent on the original surface should be totally…