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Publications associées (246)

The 2 * 3 toolbox of organometallic methods for regiochemically exhaustive functionalization

A review. This review describes a concept aimed at rational and maximal structure proliferation. To this end, simple arom. or heterocyclic starting materials, often bulk chems., are converted into all regioisomerically possible polar organometallic interme ...

2005

Temperature dependence of irradiation effects in pure titanium

Nadine Baluc

The microstructural modifications due to irradiation in hcp pure metals and their consequences on the mechanical properties have been investigated. Experimental results for proton-irradiated pure polycrystalline titanium are presented and discussed. Sample ...

2005

Calcium phosphate drug delivery system: influence of local zoledronate release on bone implant osteointegration

Dominique Pioletti, Bastian Peter

Despite total hip replacement (THR) gives generally satisfactory results, the quality of outcome in young patients is markedly decreased compared to the average THR outcome. For this population, pharmacological treatment with bisphosphonate would be benefi ...

2005

Preparation of gold nanoparticles by heat treatment of sputter deposited gold on boron-doped diamond film electrode

Christos Comninellis, György Foti, Bahaa El Roustom

A novel two-step method was developed to prep. gold nanoparticles on boron-doped diamond (BDD) electrode. It consisted of sputter deposition of max. 15 equiv monolayers of gold, followed by a heat treatment at 400-600 Deg in air. The as-sputtered gold depo ...

2005

TiO2-photocatalyzed As(III) oxidation in aqueous suspensions: Reaction kinetics and effects of adsorption

Janet Gordon Hering

Oxidation of arsenite, As(III), to arsenate, As(V), is required for the efficient removal of arsenic by many water treatment technologies. The photocatalyzed oxidation of As(III) on titanium dioxide, TiO2, offers an environmentally benign method for this u ...

2005

The effect of bisphosphonates and titanium particles on osteoblasts: an in vitro study

Dominique Pioletti, Bastian Peter

In an attempt to increase the life of cementless prostheses, an hydroxyapatite-coated implant which releases a bisphosphonate has been suggested as a drug-delivery system. Our in vitro study was designed to determine the maximum dose to which osteoblasts c ...

2005

High-strain response of piezoresistive thick-film resistors on titanium alloy substrates

Peter Ryser, Thomas Maeder, Caroline Jacq

We examine, in this work, the integration and high-strain response of piezoresistive thick-film resistors on titanium and titanium alloy, as compared with ferritic stainless steel and the standard alumina substrates. In general, titanium and its alloys are ...

2004

RGD-containing peptide GCRGYGRGDSPG reduces enhancement of osteoblast differentiation by poly(L-lysine)-graft-poly(ethylene glycol)-coated titanium surfaces

Jeffrey Alan Hubbell

Osteoblasts exhibit a more differentiated morphol. on surfaces with rough microtopogs. Surface effects are often mediated through integrins that bind the RGD motif in cell attachment proteins. Here, we tested the hypothesis that modulating access to RGD bi ...

2004

Femtosecond irradiation induced refractive-index changes and channel waveguiding in bulk Ti3+:sapphire

René Salathé, Christian Depeursinge, Tristan Colomb

Femtosecond writing of refractive-index changes in sapphire is demonstrated by doping the crystal with an appropriate ion (here: Ti3+) that reduces the threshold of the process. Passive and active buried channel waveguiding is demonstrated. ...

OSA2004

Modeling phase separation in nonstoichiometric silica

Alfredo Pasquarello, Angelo Bongiorno

We have modeled the decomposition of nonstoichiometric amorphous SiOx upon annealing into silicon and stoichiometric silica, using a new method based on mapping Metropolis Monte Carlo simulations onto rate equations. The concentrations of all oxidation sta ...

2004

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