Politecnico di Milano – Page 5

New nanostructured cellulose materials

Vismara E., Gastaldi G., Melone L., Cosentino C., Torri G., Politecnico di Milano, IT

Optimized synthesis of new cellulose-GMA materials via radical and physical chemical activation, their chemical composition determination and derivatization quantification. Structural solid state NMR and IR ATR characterizations. Derivative screenings for possible use in filtration of [...]

Effect of thermal treatments on the structure of photoactive titanium oxides

Diamanti M.V., Codeluppi S., Cordioli A., Pedeferri MP., Politecnico di Milano, IT

Nanocrystalline TiO2 is one of the most important and used photocatalysts because of the excellent efficiencies of conversion of chemical species, and its chemical stability. Its photocatalytic properties are activated only by UV light; nevertheless, [...]

Interaction between alternating current and cathodic protection over nano sized/structured surface metals

Lazzari L., Ormellese M., Bueno V., Politecnico di Milano, IT

Serious cases of corrosion in metal structures under both alternating current (AC) and cathodic protection (CP) have been reported. The objective of this research is the proposal of a mechanism by which AC affects the [...]

Influence of His-195 on the nitrogenase FeMo-cofactor activity

Cavallotti C., Moscatelli D., Carrà S., Politecnico di Milano, IT

Mo-nitrogenase is the enzyme responsible for the conversion of atmospheric nitrogen to ammonia. Its active site is the iron-molibdenum cofactor, FeMo-co, which is composed by two incomplete cubes, Fe4S3 and MoFe3S3, connected through three bridging [...]

A Multiscale investigation of the influence of surface morphology on thin films CVD deposition

Barbato A., Rondanini M., Cavallotti C., Politecnico di Milano, IT

Growth rates and morphology of thin solid films deposited through Chemical Vapor Deposition processes are strongly dependent on chemical-physical events that occur at time and length scales differing by several orders of magnitudes. Models adopted [...]

A Kinetic Study of the MOCVD of GaN

Moscatelli D., Cavallotti C., Politecnico di Milano, IT

Quantum chemistry investigations have been performed to study the gas phase chemistry active during the MOVPE of GaN when Ga(CH3)3 and NH3, diluted in a H2 carrier gas, are used as precursors. Optimized molecular geometries, [...]

Molecular Dynamic investigation of the interaction of supported affinity ligands with Monoclonal Antibodies

Zamolo L., Busini V., Moiani D., Moscatelli D., Cavallotti C., Politecnico di Milano, IT

Monoclonal antibodies are gaining an increasing importance in diagnostic and therapeutic treatment of grave diseases such as immunodeficiency, Alzheimer’s syndrome and cancer. The production of these pharmaceuticals and especially the purification step, however, are still [...]

Influence of His-195 on the nitrogenase FeMo-cofactor activity

Cavallotti C., Moscatelli D., Carrà S., Politecnico di Milano, IT

Mo-nitrogenase is the enzyme responsible for the conversion of atmospheric nitrogen to ammonia. Its active site is the iron-molibdenum cofactor, FeMo-co, which is composed by two incomplete cubes, Fe4S3 and MoFe3S3, connected through three bridging [...]

In-plane and Out-Of-Plane Mechanical Characterization of Thin Polysilicon

Cacchione F., De Masi B., Corigliano A., Ferrera M., Vinay A., Politecnico di Milano, IT

In this paper is presented the mechanical characterization of thin polysilicon using different test structures. There are described two classes of on-chip test structures, with movement respectively in a plane parallel to the substrate and [...]

Development of a New Treatment to Induce Anatase Growth on Ti

Pedeferri M., Bottani C.E., Cattaneo D., Li Bassi A., Del Curto B., Brunella M.F., Politecnico di Milano, IT

Aim of the work has been the evaluation of the application of a novel treatment of the Ti surface in order to increase anatase growth. Two different anodizing methodologies, previously developed were considered, followed by [...]