IT – Page 7 – TechConnect Briefs

Nanostructured cellulose materials: adsorption of antibiotics onto cellulose fibers functionalized with glycidylmethacrylate for the manufacturing of antibacterial fabrics

Vismara E., Torri G., Valerio A., Graziani G., Montanelli A., Melone L., Politecnico di Milano, IT

Abstract: In this work we report how cotton fibers can be easily functionalized with glycidylmethacrylate (GMA) by means of the Fenton’s reaction and used for the manufacturing of biomedical textiles having significant capability to adsorb [...]

Surface Functionalized Multicomponent Envelope Type Nanosystems for Improved Gene Delivery

Pozzi D., Orlando V., Augusti Tocco G., Biagioni S., Cardarelli F., Bifone A., Caraccioloa G., Sapienza University of Rome, IT

Recently, a new programmed packaging strategy in which various “soft devices” that control intracellular trafficking are incorporated into single nanoparticles has been proposed. Here we apply such a novel concept to develop multicomponent envelope-type nanosystems [...]

Novel smart bio-nanomaterials: bioactive glasses containing metal nano-particles conjugated with molecules of biological interests

Malavasi G., Lusvardi G., Menabue L., Ferrari E., Saladini M., Aina V., Martra G., Bergandi L., Ghigo D., University of Modena and Reggio Emilia, IT

Stimuli-responsive materials (smart materials) hold great promises for social and economic development and are of great relevance in both fundamental research and technological applications. Their design and realization through innovative processes involve complementary expertises, with [...]

Leakage current in HfO2 stacks: from physical to compact modeling

Larcher L., Padovani A., Pavan P., Università di Modena e Reggio Emilia, IT

First, we present a Monte-Carlo model we developed for describing the charge transport in hafnium-based stacks, which allows reproducing voltage and temperature dependencies of the leakage current along with its statistical distribution. The model accounts [...]

Study on the Heat Transfer Capability of Silicon Carbide – Ethylene Glycol Nanofluid

Bobbo S., Colla L., Scattolini M., Fedele L., Consiglio Nazionale delle Ricerche, IT

Ethylene glycol-based nanofluids containing silicon carbide (SiC) in the concentrations 0.1, 1 and 5 wt% were characterized, in order to understand their potentiality to improve the heat transfer efficiency of the base fluid. Measurements performed [...]

Numerical modeling of squeeze-film damping in micro-mirrors including rarefaction effects

Nigro S., Pagnotta L., Pantano M.-F., Università della Calabria, IT

In this work, we use a commercial finite element software, Comsol Multiphsics to solve some squeeze-film damping problems, which were experimentally investigated in the literature. They involve rotational motion at both high and low pressure [...]

Health monitoring of flexible composite plates: a MEMS-based approach

Mariani S., Corigliano A., Caimmi F., Bruggi M., Bendiscioli P., De Fazio M., Politecnico di Milano, STMicroelectronics, IT

We propose a surface-mounted MEMS-based health monitoring system. Since MEMS sensors are pervasive but not invasive, they can be deployed in very dense arrays over the whole structure, without affecting its dynamics. With reference to [...]

A Novel Pneumatically Driven SU-8 Microvalve for High Speed Gas Chromatographic Applications

Nubile A., Poggi A., Cozzani E., Elmi I., Zampolli S., Messina M., Cardinali G.C., Mancarella F., Belluce M., CNR, IT

Microvalves are basic components of microfluidic systems and MEMS technology has provided an opportunity for microvalves to be packaged onto a board with integrated microfluidic channels. For the successful miniaturization of integrated fluidic devices, it [...]

Advances (and limits) in photocatalytic building materials

Diamanti M.V., Politecnico di Milano, IT

Titanium dioxide has often been indicated as emerging technique for environment depollution, specially in urban environments. It can be easily added to building materials, such as concrete or mortar elements, or as coating to any [...]

A comparative study over the photocatalytic activity of nanostructured TiO2 layers for air purifiers

Diamanti M.V., Del Curto B., Pedeferri MP., Cigada A., Politecnico di Milano, IT

The research presents an investigation over the efficiency of nanostructured TiO2 films as photocatalysts either in air purification systems or to be integrated in light devices, based on the exploitation of UV or Vis irradiation [...]