A facile method for achieving optical switching of the Dirac point and conductance in reduced graphene oxide multilayer FETs that are non-covalently functionalized with a photo-responsive spiropyran derivative is presented. The photoresponsive transition from spiropyran to merocyanine induces the reversible optical switching in graphene based FETs.

Our work focuses on the encoding of two–dimensional (2-D) graphics animated cartoons with MPEG-4. This stems from a need to stop encoding cartoons as videos and to start using methods more adapted to animated 2-D vector graphics sequences. We expected this could be an efficient coding with good versatility for various types of terminals. First, we present some technical specification for such c...

Conversion of readily available vindoline to 11-mesyloxytabersonine, a versatile synthetic intermediate for indole alkaloids, has been achieved by a 9-step sequence in 39% overall yield.

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Is the Innovation Society sustainable? We argue that the way in which our society organizes its innovation processes generates endogenous crises, and the ideology that sustains this organization makes it difficult to confront this meta-crisis economically or politically. We claim that the key to constructing a socially sustainable future is the mobilization of civil society, with respect to two...

A monoclonal antibody for the carcinoembryonic antigen (CEA) was immobilized on a gold chip surface covered by a self-assembled monolayer of 11-mercaptoundecanoic acid. Upon the addition of CEA, a Fourier transform infrared reflection-absorption spectroscopy (FT-IR RAS) measurement showed an increased absorption at around 1500 - 1700 cm(-1), corresponding to its amide structures. Another additi...

Article history: Received 17 March 2008 Received in revised form 28 April 2008 Accepted 13 June 2008 Available online 26 October 2008 The review of this paper was arranged by Dimitri Lederer and Jean-Pierre Colinge