Gradual and reversible tuning of the torsion angle of an amphiphilic chiral binaphthyl, from -90° to -80°, was achieved by application of a mechanical force to its molecular monolayer at the air-water interface. This 2D interface was an ideal location for mechanochemistry for molecular tuning and its experimental and theoretical analysis, since this lowered dimension enables high orientation of...

Liens [1] http://okina.univ-angers.fr/publications?f[author]=2635 [2] http://okina.univ-angers.fr/lionel.sanguinet/publications [3] http://okina.univ-angers.fr/publications?f[author]=259 [4] http://okina.univ-angers.fr/olivier.aleveque/publications [5] http://okina.univ-angers.fr/m.dias/publications [6] http://okina.univ-angers.fr/eric.levillain/publications [7] http://okina.univ-angers.fr/publ...

We present experimental and theoretical studies of Pd/Cu(100) and Cu/Pd(100) heterostructures in order to explore their structure and misfit strain relaxation. Ultrathin Pd and Cu films are grown by pulsed laser deposition at room temperature. For Pd/Cu, compressive strain is released by networks of misfit dislocations running in the [100] and [010] directions, which appear after a few monolaye...

Article history: Received 12 August 2008 Received in revised form 19 January 2009 Accepted 22 January 2009 Available online xxxx

The experimental observation of band-to-band tunneling in novel tunneling field-effect transistors utilizing a monolayer of MoS2 as the conducting channel is demonstrated. Our results indicate that the strong gate-coupling efficiency enabled by two-dimensional materials, such as monolayer MoS2 , results in the direct manifestation of a band-to-band tunneling current and an ambipolar transport.

Objective(s) Articular cartilage tissue defects cannot be repaired by the proliferation of resident chondrocytes. Autologous chondrocyte transplantation (ACT) is a relatively new therapeutic approach to cover full thickness articular cartilage defects by in vitro grown chondrocytes from the joint of a patient. Therefore, we investigated the redifferentiation capability of human chondrocytes ma...