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CV characterization of unmodified and MWCNT film modified UNCD microelectrodes. (a, b) Voitammograms taken in 1X PBS buffer (inset for UNCD). (c, d) Voltammograms obtained in 100 μM DA in 1X PBS (inset for UNCD). Legends: Unmodified UNCD (black curve), thin film (purple), thick film (green) and thickest film (blue). Scan rate is 100 mV/s. (For interpretation of the references to colour in this figure legend, the reader is referred to the web version of this article.)
