Equivalence between positive and negative refractive index materials in electrostatic cloaks

We investigate, both theoretically and numerically, the equivalence relationship between the positive and negative refraction index dielectric materials in electrostatic invisibility cloak. We have derived an analytical formula that enables fast calculate the corresponding positive dielectric constant from the negative refraction index material. The numerical results show that the negative refraction index material can be replaced by the positive refractive index materials in the static field cloak. This offers some new viewpoints for designing new sensing systems and devices in physics, colloid science, and engineering applications.

Advanced Materials in Cultural Heritage Conservation

Cultural Heritage is a crucial socioeconomic resource; yet, recurring degradation processes endanger its preservation. Serendipitous approaches in restoration practice need to be replaced by systematically addressing conservation issues through the development of advanced materials for the preservation of the artifacts. In the last few decades, materials and colloid science have provided valid solutions to counteract degradation, and we report here the main highlights in the formulation and application of materials and methodologies for the cleaning, protection and consolidation of works of art. Several types of artifacts are addressed, from murals to canvas paintings, metal objects, and paper artworks, comprising both classic and modern/contemporary art. Systems, such as nanoparticles, gels, nanostructured cleaning fluids, composites, and other functional materials, are reviewed. Future perspectives are also commented, outlining open issues and trends in this challenging and exciting field.

Special Issue in Honor of Shlomo Magdassi—Bringing Basic Colloid Science into Industrial Products

The majority of basic research that is conducted by Prof. Shlomo Magdassi in materials science [...]

LIPOSOMES: TYPE, PREAPRATION AND EVALUATION

In this article, we discussed about type, preparation and evaluation of liposomes. The term liposome means body of lipid and it basically consisting of one or more phospholipid bilayers. liposomes are a mostly useful in reproduction, reagent, and gear in various scientific regimentation, including mathematics and theoretical physics, chemistry, colloid science, biochemistry, biology etc. these are one amongst the various drug delivery system used to target the drug to particular tissue because liposomes structure similar to lipid bilayer and cell membrane.

Tailoring the phase diagram of discotic mesogens.

The computational modelling of discotic molecules is a central topic in colloid science that is key for the smart design of a broad range of modern functional materials. This work...