Abstract: Amphiphilic block copolymers undergo self-aggregates into various nanostructures in aqueous medium and the properties of block copolymers are highlyaltered by the addition of ionic as well as non-ionic surfactants.By mixing with block copolymers with surfactant, the nano-structure as well as the solubility, stability and bioavailability enhances. In this review we want to provide a briefoverview of mixed-micelle formation between various block copolymers and various non-ionic, cationic, anionic surfactants.
Abstract: Graphene is considered to be the most efficient material for the future of nanomaterials. Due to its unique structure and good thermal and electrical conductivity opened a door for future research. The graphene based field effect transistors are one of the most important application of graphene. Thus it can be used after p or n doping for the detection and analysing some of the substrate. Thus this paper contains a very brief review on the graphene in field of electrical sensor.
Abstract: A mathematical formulation of the mesoscopic fluctuations of the conductance in almost closed quantum dots (weak dot-leads coupling) is discussed by RMT (Ranom Matrix Theory) as a statistical tool. A quantum dot (artificial atom) is a sub-micron-scale conducting device containing up to several thousand electrons. Transport of electron through a quantum dot at low temperatures is a quantum-coherent process. Conductance fluctuations of an arbitrary shape dot, with or without disorder, in presence/ absence of electron-electron interactions have been studied analytically. These fluctuations can be expressed in terms of the eigenfunctions of the Hamiltonian of the dots expressed in the basis of the connecting leads. The distribution of the eigenfunctions is obtained by using multiparametric Gaussian random matrix ensemble with independent matrix elements to model the non-interacting cases and the correlated Gaussian ensembles for the interacting cases.
Abstract: Nanоtechnоlоgy is science, engineering, and technology conducted at the nanoscale, which is about 1 to 100 nanometers. Many technical and industry sectors are benefiting from nanotechnology, including information technology, energy, environmental science, medicine, homeland security, food safety, and transportation, to name a few. Nanotechnology today takes advantage of recent advances in chemistry, physics, materials science, and biotechnology to generate novel materials with unique properties due to their nanometer-scale structures. The numerous applications of nanotechnology in recent decades are summarized in this text.
Abstract: The concentrationof several greenhouse gases has increased over time. The ongoing accumulation of greenhouse gases causes increase in global warming. Experts in fields from forestry to economics, even national security experts, pitched in to assess the range of possible consequences. The unfortunate reality is that predicting the impact of global warming is notoriously hard. It brings a whole range of scientific disciplines together, such as oceanography, meteorology, and geology, while no one can agree on the exact impacts for specific regions of the world. All scientists agree global warming will have numerous negative effects on our planet and our way of life.