Diamond polar molecule adsorption

Furthermore, it has been proved that direct oxidation can happen on the diamond film electrode before the oxygen gas evolution potential (Zhi et al. 2003). Direct oxidation takes place, accompanying with the adsorption of chemical molecules on the diamond electrode surface. An as-grown diamond film with high hydrogen coverage is inert to adsorption of polar molecules (Vinokur, Miller et al. 1996 Yano... 

Owing to their extremely hydrophobic character, diamond surfaces altogether hardly tend toward an unspecific adsorption of polar organic molecules. Therefore functionahzed diamond films suit very well to sensor applications, for example, for biomolecules. The specific adsorption then only takes place at the respective positions predetermined by the functionalization. 

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