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Self-assembled nanowires of diphenylalanine and graphene (FF-G) nanocomposites have been prepared in aqueous solution by a simple one-step method. Hemoglobin (Hb) as a model molecule is further immobilized on the FF-G nanocomposites in order to construct a H2O2 amperometric biosensor. According to UV–vis spectroscopy, the immobilized Hb, overall retains its original structure and the bioactivity....
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