Atomic control of water interaction with biocompatible surfaces: the case of SiC(001) |
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Authors: | Cicero Giancarlo Catellani Alessandra Galli Giulia |
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Affiliation: | INFM & Physics Department, Torino Polytechnic, C. Duca degli Abruzzi, 24, I-10129 Torino, Italy. giancarlo.cicero@polito.it |
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Abstract: | The interaction of water with Si- and C- terminated beta-SiC(001) surfaces was investigated by means of ab initio molecular dynamics simulations. Irrespective of coverage, varied from 1/4 to 1 monolayer, we found that water dissociates on the Si-terminated surface, substantially modifying the clean surface reconstruction, while the C-terminated surface is nonreactive and hydrophobic. Based on our results, we propose that STM images and photoemission experiments may detect specific changes induced by water on both the structural and electronic properties of SiC(001) surfaces. |
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