There is a continuing interest in grapheme-based materials since grapheme was first isolated in 2004, because of its exceptional electrical, chemical and mechanical properties for applications, such as biosensors and conducting nanocomposites. One of the problems facing its use though is its inherent insolubility in most organic and aqueous solvents. A number of papers have reported the functionalisation of grapheme using both covalent and non-covalent approaches. It is, however, important that the functionalisation process does not lead to a loss of the important electronic properties.
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