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Amine functionalization of polystyrene microwells for covalent binding of DNA is described. Polystyrene support was first carboxylated by permanganate oxidation in diluted sulfuric acid. These functions were activated with water-soluble carbodiimide and grafted with N-methyl-1,3-propane diamine to introduce a free secondary amino group on the support. The(More)
On Cu(100) surface, Auger electron spectroscopy (AES), Low Energy Electron Diffraction (LEED) and Scanning Tunnelling Microscopy (STM) were used to study (i) at room temperature (RT) the first steps of silicon growth and, (ii) at higher temperature, the dissolution process of silicon in Cu(100). The growth kinetics of Silicon onto Cu(100) at RT monitored by(More)
In this paper, we report investigations concerning the fabrication of a diluted Ge(Mn) solution using solid state Mn diffusion, and Mn/Ge reactive diffusion for spintronic applications. The study of Mn diffusion shows that the quasi-totality of the incorporated Mn atoms occupies Ge substitutional sites and probably exhibits two negative elementary charges.(More)
The diffusion of a half monolayer of Mn deposited by molecular beam epitaxy on a Ge(0 0 1) substrate was studied via secondary ion mass spectrometry. Mn diffused in Ge under extrinsic conditions, exhibiting a solubility of 0.7–0.9%. All the Mn atoms were activated, occupying Ge substitutional sites and exhibiting a negative charge, in agreement with(More)
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